Filed Pursuant To Rule 424(b)(3)

Registration No. 333-130318

SUBJECT TO COMPLETION, AUGUST 7, 2006

Prospectus Supplement

August      , 2006

(To Prospectus dated December 14, 2005)

$                              

Eaton Corporation

Floating Rate Notes due 2009

           The notes will bear interest at a floating rate per year. Interest on the notes is payable quarterly in arrears on                     ,                     ,                     , and                                         of each year, beginning on                     , 2006. The notes will mature on                     , 2009. Interest on the notes will accrue from August      , 2006. The notes are not redeemable prior to maturity.

      The notes will be unsecured obligations of our company and will rank equally with all of our other unsecured senior indebtedness from time to time outstanding.

      Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

      The notes will be delivered to investors in book-entry form only through the facilities of The Depository Trust Company on or about August      , 2006.

Banc of America Securities LLC

         You should rely only on the information contained or incorporated by reference in this prospectus supplement and the accompanying prospectus. We have not, and Banc of America Securities LLC has not, authorized any other person to provide you with different information. If anyone provides you with different or inconsistent information, you should not rely on it. We are not, and Banc of America Securities LLC is not, making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted. You should assume that the information appearing in this prospectus supplement, the accompanying prospectus and the documents incorporated by reference is accurate only as of their respective dates. Our business, financial condition, results of operations and prospects may have changed since those dates.

TABLE OF CONTENTS

Prospectus Supplement

WHERE YOU CAN FIND MORE INFORMATION

      We file annual, quarterly and special reports and other information with the Securities and Exchange Commission. You may read and copy any document we file at the SEC’s Public Reference Room at 100 F Street, N.E., Washington D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on its public reference rooms. Our SEC filings are also available to the public from the SEC’s web site at http://www.sec.gov. Our common shares are listed on the New York Stock Exchange, the Chicago Stock Exchange, the Pacific Exchange and the London Stock Exchange, and information about us also is available there.

      This prospectus supplement is part of a registration statement that we have filed with the SEC. The SEC allows us to “incorporate by reference” the information we file with it, which means that we can disclose important information to you by referring you to other documents that we identify as part of this prospectus supplement. Our subsequent filings of similar documents with the SEC will automatically update and supersede this information. We incorporate by reference the documents listed below and any future filings we make with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 until the offering of our common shares has been completed.

      You may obtain a copy of these filings at no cost by writing to or telephoning us at the following address:

      You should rely only on the information incorporated by reference or provided in this prospectus supplement. We have not authorized anyone else to provide you with different information. This prospectus supplement is an offer to sell or buy only the securities described in this document, but only under circumstances and in jurisdictions where it is lawful to do so. The information contained in this prospectus supplement is current only as of the date of this prospectus supplement.

SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

      Some of the statements included or incorporated by reference in the accompanying prospectus or this prospectus supplement constitute “forward-looking statements” within the meaning of the Securities Litigation Reform Act of 1995. Words such as “expects”, “intends”, “plans”, “projects”, “believes”, “estimates”, “anticipates” and variations of these and similar expressions are used to identify these forward-looking statements. These forward-looking statements refer to, among other things, our plans, strategies and prospects, both business and financial. Although we believe that our plans, intentions and expectations reflected in or suggested by these forward-looking statements are reasonable, we can give no assurance that we will achieve or realize these plans, intentions or expectations. Forward-looking statements are inherently subject to risks, uncertainties and assumptions. Important factors that could cause actual results to differ materially from the forward-looking statements we make in those documents are set forth in those documents. All forward-looking statements attributable to us or persons acting on our behalf are expressly qualified by those cautionary statements. We will not update these forward-looking statements even though our situation will change in the future.

	•	Electrical
	•	Fluid Power
	•	Truck
	•	Automotive

Issuer		Eaton Corporation
Securities Offered		$                    aggregate principal amount of Floating Rate Notes due 2009
Maturity		, 2009
Interest Rate		Three-month USD LIBOR plus                     basis points
Interest Payment and Reset Dates		Quarterly on                     ,                     ,                     and                     , commencing                     , 2006. Interest on the notes being offered by this prospectus supplement will accrue from August      , 2006.
Ranking		The notes will be our unsecured senior obligations and will rank equally with our other unsecured senior indebtedness from time to time outstanding. The notes will be effectively subordinated to any existing or future debt or other liabilities of any of our subsidiaries.
Authorized Denominations		Minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof
Use of Proceeds		We expect the net proceeds from the notes to be approximately $           million. We will use these proceeds to repay $86 million of 8% Debentures due 2006, $100 million of 8.90% Debentures due 2006 and the remaining balance to repay commercial paper. See “Use of Proceeds.”
Trustee, Registrar and Paying Agent		JPMorgan Chase Bank, N.A.

USE OF PROCEEDS

      We expect the net proceeds from the sale of the notes offered by this prospectus supplement to be approximately $                     million. We will use these proceeds to repay $86.0 million of 8% Debentures due 2006, $100.0 million of 8.9% Debentures due 2006 and the remaining balance to repay commercial paper having an average maturity of 18.6 days and bearing an average annual rate of interest of 4.24% as of August 4, 2006.

CAPITALIZATION

      The following table sets forth the capitalization of Eaton and its consolidated subsidiaries at June 30, 2006. The “As Adjusted” capitalization set forth below gives effect to the issuance of the Floating Rate Notes offered herein.

      Eaton’s authorized capital as of June 30, 2006 consisted of common shares, par value $0.50 (300 million shares authorized, 150 million shares outstanding).

RATIO OF EARNINGS TO FIXED CHARGES

      The following table shows our ratio of earnings to fixed charges for the six months ended June 30, 2006 and for each of the five years in the period ended December 31.

      For the purpose of computing the ratio of earnings to fixed charges, “earnings” consist of consolidated pretax income before adjustment for minority interests in consolidated subsidiaries and income (loss) of equity investees, plus (1) amortization of capitalized interest, (2) distributed income of equity investees and (3) fixed charges described below, excluding interest capitalized. “Fixed charges” consist of (1) interest expensed, (2) interest capitalized, (3) amortization of debt issue costs and (4) that portion of rent expense estimated to represent interest. Because we have not had any preferred shares outstanding during the last five years and have, therefore, not paid any dividends on preferred shares, our ratio of earnings to combined fixed charges and preferred share dividends has been the same as the ratio of earnings to fixed charges for each of the above periods.

DESCRIPTION OF NOTES

General

      The following description of the particular terms of the notes offered by this prospectus supplement supplements the description of the general terms and provisions of debt securities under the heading “Description of Debt Securities” in the accompanying prospectus. Capitalized terms used in this section of this prospectus supplement that are otherwise not defined have the meanings given to them in the accompanying prospectus.

      The notes will be unsecured senior debt issued under the Indenture dated as of April 1, 1994, as supplemented from time to time (the “Senior Indenture”), which we entered into with JPMorgan Chase Bank, N.A. (formerly Chemical Bank), as Senior Trustee. The notes will rank equally with all our other unsecured senior indebtedness from time to time outstanding.

      We will issue the notes in the aggregate principal amount of $           million. The notes will mature on August      , 2009. We will issue the notes only in book-entry form, in denominations of $1,000 and integral multiples of $1,000. The notes will not be subject to any sinking fund and will not be convertible into or exchangeable for any of our equity interests.

      We may, without the consent of the holders of the notes, issue additional debt securities having the same ranking and the same interest rate, maturity and other terms as the notes. Any such additional debt securities and the notes will constitute a single series under the Senior Indenture. None of these additional notes may be issued if an Event of Default has occurred and is continuing with respect to the notes.

Principal and Interest

      The notes will mature on                           , 2009. The notes will bear interest from August      , 2006, and will be payable quarterly in arrears on                     ,                     ,                     and                     (each such date, an “Interest Payment Date”), commencing                     , 2006, to the holders in whose names the notes are registered at the close of business on the 15th calendar day preceding such Interest Payment Date (whether or not a Business Day), each such date a “Record Date.” If any Interest Payment Date other than the Stated Maturity Date falls on a day that is not a Business Day, the Interest Payment Date will be postponed to the next succeeding Business Day, except if that Business Day is in the next succeeding calendar month, then such Interest Payment Date will be the immediately preceding Business Day. If the Stated Maturity Date with respect to the notes falls on a day that is not a Business Day, the required payment of principal and interest will be made on the next succeeding Business Day, and no interest will accrue on such payment for the period from and after the Stated Maturity Date to the date of such payment on the next succeeding Business Day. Certain capitalized terms related to the notes are defined below.

      The applicable interest rate for the notes will be calculated by a calculation agent. The calculation agent for the notes will be JPMorgan Chase Bank, N.A., (or such other person as we may appoint from time to time), which is referred to as the “Calculation Agent.” Upon the request of the holder in whose name any note is registered, the Calculation Agent will provide the interest rate then in effect and, if determined, the interest rate that will become effective on the next Interest Period. The notes will bear interest for each quarterly Interest Period at a per annum rate determined by the Calculation Agent, subject to the maximum interest rate permitted by New York or other applicable state law, as such law may be modified by United States law of general application. The interest rate applicable during each quarterly Interest Period will be equal to LIBOR on the Interest Determination Date for such Interest Period plus           %; provided, however, that in certain circumstances described below, the interest rate will be determined without reference to LIBOR. Promptly upon each such determination, the Calculation Agent will notify us and the Trustee, if the Trustee is not then serving as the Calculation Agent, of the interest rate for the new Interest Period. The interest rate determined by the Calculation Agent, absent manifest error, will be binding and conclusive upon the beneficial owners of and holders in whose name the notes are registered, the Company and the Trustee.

      If the following circumstances exist on any Interest Determination Date, the Calculation Agent will determine the interest rate for the notes as follows:

      All percentages resulting from any calculation on the notes will be rounded to the nearest one hundred-thousandth of a percentage point with five one-millionths of a percentage point rounded upwards (e.g., 9.876545% (or .09876545) would be rounded to 9.87655% (or .0987655)), and all Dollar amounts used in or resulting from such calculation on the notes will be rounded to the nearest cent (with one-half cent being rounded upward).

      The following definitions apply to the notes:

      “Business Day” means a day which is not, in London or New York City, a Saturday, Sunday, a legal holiday or a day on which banking institutions are authorized or obligated by law or executive order to close.

      “Interest Determination Date” means the second London Business Day immediately preceding the first day of the relevant Interest Period.

      “Interest Period” means the period commencing on an Interest Payment Date for the notes (or, with respect to the initial Interest Period only, commencing on August      , 2006) and ending on the day before the next succeeding Interest Payment Date.

      “LIBOR,” for any Interest Determination Date, will be the offered rate for deposits in U.S. dollars having an index maturity of three months for a period commencing on the second London Business Day immediately following the Interest Determination Date in amounts of not less than $1,000,000, as such rate appears on Telerate Page 3750 or a successor reporter of such rates selected by the Calculation Agent and acceptable to us, at approximately 11:00 a.m., London time, on the Interest Determination Date (the “Reported Rate”).

      “London Business Day” means a day that is a Business Day and a day on which dealings in deposits in U.S. dollars are transacted, or with respect to any future date are expected to be transacted, in the London interbank market.

      “Telerate Page 3750” means the display designated on page 3750 on Moneyline Telerate, Inc. (or such other page as may replace the 3750 page on that service or such other service as may be nominated by the British Bankers’ Association for the purpose of displaying London interbank offered rates for U.S. dollar deposits).

Defeasance and Covenant Defeasance

      In some circumstances, we may elect to discharge our obligations on the notes through defeasance or covenant defeasance. See “Description of Debt Securities — Defeasance and Covenant Defeasance” in the accompanying prospectus for more information about how we may do this.

Book-Entry System

      We will issue the senior debentures in the form of one or more fully registered global securities, as described in “Description of Debt Securities — Book-Entry Debt Securities” in the accompanying prospectus. We will deposit these global securities with, or on behalf of, The Depository Trust Company, New York, New York, known as DTC, and register these securities in the name of DTC’s nominee.

UNDERWRITING

      Subject to the terms and conditions stated in the underwriting agreement dated the date of this prospectus supplement, Banc of America Securities LLC has agreed to purchase, and we have agreed to sell to Banc of America Securities LLC, $                    aggregate principal amount of notes.

      The underwriting agreement provides that the obligations of Banc of America Securities LLC to purchase the notes included in this offering are subject to approval of legal matters by counsel and to other conditions. Banc of America Securities LLC is obligated to purchase all the notes if they purchase any of the notes.

      Banc of America Securities LLC proposes to offer some of the notes directly to the public at the public offering price set forth on the cover page of this prospectus supplement and some of the notes to dealers at the public offering price less a concession not to exceed           % of the principal amount of the notes. The underwriter may allow, and dealers may reallow, a concession not to exceed           % of the principal amount of the notes on sales to other dealers. After the initial offering of the notes to the public, Banc of America Securities LLC may change the offering price and other selling terms.

      The notes are a new issue of securities with no established trading market. The notes will not be listed on any securities exchange or on any automated dealer quotation system. Banc of America Securities LLC may make a market in the notes after completion of the offering, but will not be obligated to do so and may discontinue any market-making activities at any time without notice. No assurance can be given as to the liquidity of the trading market for the notes or that an active public market for the notes will develop. If an active public trading market for the notes does not develop, the market price and liquidity of the notes may be adversely affected.

      In connection with the offering, Banc of America Securities LLC, may purchase and sell the notes in the open market. These transactions may include over-allotment, syndicate covering transactions and stabilizing transactions. Over-allotment involves syndicate sales of the notes in excess of the principal amount of the notes to be purchased by Banc of America Securities LLC in the offering, which creates a syndicate short position. Syndicate covering transactions involve purchases of the notes in the open market after the distribution has been completed in order to cover syndicate short positions. Stabilizing transactions consist of certain bids or purchases of the notes made for the purpose of preventing or retarding a decline in the market price of the notes while the offering is in progress.

      Banc of America Securities LLC also may impose a penalty bid. Penalty bids permit Banc of America Securities LLC to reclaim a selling concession from a syndicate member when, in covering syndicate short positions or making stabilizing purchases, it repurchases notes originally sold by that syndicate member.

      Any of these activities may have the effect of preventing or retarding a decline in the market price of the notes. They may also cause the price of the notes to be higher than the price that otherwise would exist in the open market in the absence of these transactions. Banc of America Securities LLC may conduct these transactions in the over-the-counter market or otherwise. If Banc of America Securities LLC commences any of these transactions, it may discontinue them at any time.

      We estimate that our expenses for this offering will be $               .

      We have agreed to indemnify the underwriters against certain liabilities, including liabilities under the Securities Act of 1933, or to contribute to payments the underwriters may be required to make because of any of those liabilities.

      In the ordinary course of its business, Banc of America Securities LLC and its affiliates have engaged, and may in the future engage, in commercial banking and/or investment banking transactions with us. They have received customary fees and commissions for these transactions.

LEGAL OPINIONS

      The validity of the senior debentures will be passed upon for our company by Mark Hennessey, our Deputy General Counsel, and for the underwriters by Shearman & Sterling LLP, New York, New York. Mr. Hennessey is paid a salary by our company and participates in various employee benefit plans offered to officers of our company generally.

EXPERTS

      Ernst & Young LLP, independent registered public accounting firm, has audited our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2005, and management’s assessment of the effectiveness of our internal control over financial reporting as of December 31, 2005, as set forth in their reports, which are incorporated by reference in this prospectus supplement and elsewhere in the registration statement. Our financial statements and management’s assessment are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

Eaton Corporation

By this prospectus, we offer

an unspecified amount of the following:

       The Company from time to time may offer to sell senior or subordinated debt securities, preferred shares, common shares and warrants, as well as units that include any of these securities or securities of other entities. The debt securities, preferred shares and warrants may be convertible into or exercisable or exchangeable for common or preferred shares or other securities of the Company or debt or equity securities of one or more other entities. The common stock of the Company is listed on the NYSE and trades under the ticker symbol “ETN”.

       The Company may offer and sell these securities to or through one or more underwriters, dealers and agents, or directly to purchasers, on a continuous or delayed basis.

       This prospectus describes some of the general terms that may apply to these securities. The specific terms of any securities to be offered as well as the public offering prices of these securities will be described in a supplement to this prospectus. This prospectus may not be used to sell securities unless accompanied by a prospectus supplement. You should read this prospectus and the prospectus supplements carefully before you invest.

       Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the accuracy or adequacy of this prospectus. Any representation to the contrary is a criminal offense.

The date of this prospectus is December 14, 2005.

TABLE OF CONTENTS

WHERE YOU CAN FIND MORE INFORMATION

      We file annual, quarterly and special reports, proxy statements and other information with the Securities and Exchange Commission. You may read and copy any document we file at the SEC’s public reference room at 450 Fifth Street, N.W., Washington D.C. 20549. Please call the SEC at 1-800-SEC-0330 for further information on its public reference room. Our SEC filings are also available to the public from the SEC’s web site at http://www.sec.gov. Our common shares are listed on the New York Stock Exchange, the Chicago Stock Exchange and the Pacific Exchange and information about us also is available there.

      This prospectus is part of a registration statement that we have filed with the SEC. The SEC allows us to “incorporate by reference” the information we file with it, which means that we can disclose important information to you by referring you to other documents that we identify as part of this prospectus. Our subsequent filings of similar documents with the SEC will automatically update and supersede this information. We incorporate by reference the documents listed below and any future filings we make with the SEC under Section 13(a), 13(c), 14 or 15(d) of the Securities Exchange Act of 1934 (1) after the date of the filing of this registration statement and before its effectiveness and (2) until our offering of securities has been completed.

      You may obtain a copy of these filings, at no cost, by writing to or telephoning us at the following address:

      You should rely only on the information incorporated by reference or provided in this prospectus or any supplement. We have not authorized anyone else to provide you with different information. This prospectus is an offer to sell or buy only the securities described in this document, but only under circumstances and in jurisdictions where it is lawful to do so. The information contained in this prospectus is current only as of the date of this prospectus.

THE COMPANY

      We are a global diversified industrial manufacturer, incorporated in Ohio in 1916 as a successor to a New Jersey company that was incorporated in 1911. We are a global leader in electrical systems and components for power quality, distribution and control; fluid power systems and services for industrial, mobile and aircraft equipment; intelligent truck drivetrain systems for safety and fuel economy; and automotive engine air management systems, powertrain solutions and specialty controls for performance, fuel economy and safety. We have 58,000 employees and sell products to customers in more than 125 countries.

      Our operations are categorized into these four business segments:

      Our principal executive office is located at Eaton Center, 1111 Superior Avenue, Cleveland, Ohio 44114-2584, and our telephone number is (216) 523-5000.

USE OF PROCEEDS

      Except as may be described otherwise in a prospectus supplement, we will use the net proceeds from the sale of the securities under this prospectus for general corporate purposes, which may include additions to working capital, acquisitions, or the retirement of existing indebtedness via repayment, redemption or exchange.

RATIO OF EARNINGS TO FIXED CHARGES

      The following table shows our ratio of earnings to fixed charges for the nine months ended September 30, 2005 and for each of the five years in the period ended December 31, 2004.

      For the purpose of computing the ratio of earnings to fixed charges, “earnings” consist of consolidated pretax income before adjustment for minority interests in consolidated subsidiaries or income (loss) of equity investees, plus (1) amortization of capitalized interest, (2) distributed income of equity investees and (3) fixed charges described below, excluding capitalized interest. “Fixed charges” consist of (1) interest expensed, (2) interest capitalized, (3) amortization of debt issue costs and (4) that portion of rent expense estimated to represent interest. Because we have not had any Preferred Shares outstanding during the last five years and have, therefore, not paid any dividends on Preferred Shares, our ratio of earnings to combined fixed charges and Preferred Share dividends has been the same as the ratio of earnings to fixed charges for each of the above periods.

PROSPECTUS

      This prospectus is part of a registration statement that we filed with the SEC utilizing a “shelf” registration process. Under this shelf process, we may sell any combination of debt securities, warrants to purchase debt securities, preferred shares and common shares with a par value of $.50 per share.

PROSPECTUS SUPPLEMENT

      This prospectus provides you with a general description of the debt securities, debt warrants, preferred shares and common shares we may offer. Each time we sell securities, we will provide a prospectus supplement that will contain specific information about the terms of that offering. The prospectus supplement may also add to or change information contained in this prospectus. If so, the prospectus supplement should be read as superseding this prospectus. You should read both this prospectus and any prospectus supplement, together with additional information described under the heading “Where You Can Find More Information.”

      The prospectus supplement to be attached to the front of this prospectus will describe:

      For more details on the terms of the securities, you should read the exhibits filed with our registration statements.

DESCRIPTION OF DEBT SECURITIES

      We may issue debt securities from time to time in one or more distinct series. This section summarizes the material terms of the debt securities that are common to all series. Most of the financial and other terms of any series of debt securities that we offer will be described in a prospectus supplement to be attached to the front of this prospectus. Since the terms of specific debt securities may differ from the general information we have provided below, you should rely on information in the prospectus supplement that is inconsistent with the information below. As used in this section, “we,” “us,” “our” and “our company” refer to Eaton Corporation and not to its subsidiaries, unless the context otherwise requires.

      The debt securities are governed by a document called an “Indenture.” An Indenture is a contract between us and a financial institution acting as Trustee on your behalf. The Trustee has two main roles. First, the Trustee can enforce your rights against us if we default. There are some limitations on the extent to which the Trustee acts on your behalf. Second, the Trustee performs certain administrative duties for us.

      Senior securities will be issued under an Indenture dated as of April 1, 1994, as supplemented from time to time (the “Senior Indenture”), which we entered into with Chemical Bank, as trustee (the “Senior Trustee”), and subordinated securities will be issued under a separate indenture (the “Subordinated Indenture”), which we will enter into with a trustee (the “Subordinated Trustee”) if we decide to issue any subordinated securities. JPMorgan Chase Bank, N.A. (formerly known as Chemical Bank) is acting as Senior Trustee. The term “Trustee” refers to either the Senior Trustee or the Subordinated Trustee, as appropriate. We will refer to the Senior Indenture and the Subordinated Indenture, as executed, together as the “Indentures” and each, as an “Indenture.” The Indentures are subject to and governed by the Trust Indenture Act of 1939.

      The Indentures and associated documents contain the full legal text of the matters described in this section. We have filed the form of each Indenture as an exhibit to a registration statement that we have filed with the SEC. See “Where You Can Find More Information” on page 2 of this prospectus for information on how to obtain copies of the Indentures.

      Because this section is a summary of the material terms of the Indentures, it does not describe every aspect of the debt securities. This summary is qualified in its entirety by the provisions of the Indentures, including definitions of certain terms used in the Indentures. For example, in this section, we use capitalized words to signify terms that are specifically defined in the Indentures. Some of the definitions are repeated in this prospectus, but for the rest you will need to read the Indentures. We also include references in parentheses to certain sections of the Indentures or the Trust Indenture Act. Whenever we refer to particular sections or defined terms of the Indentures, those sections or defined terms are incorporated by reference in this prospectus or in the prospectus supplement. Unless otherwise noted, the section numbers refer to the applicable section for both Indentures.

Provisions Applicable to Both the Senior and Subordinated Indentures

General

      The debt securities will be our unsecured obligations. The senior securities will rank equally with all of our other unsecured and unsubordinated indebtedness. The subordinated securities will be subordinated in right of payment to the prior payment in full of our Senior Indebtedness as described below under “—Subordinated Indenture Provisions—Subordination.”

      Under the Indentures, we may issue any debt securities offered under this prospectus and the attached prospectus supplement and any debt securities issuable upon the exercise of debt warrants or upon conversion or exchange of other offered securities, as well as other unsecured debt securities.

      With respect to the offered debt securities and any underlying debt securities, you should read the prospectus supplement for the following and other terms, which will be established by authority of our Board of Directors before the issuance of the debt securities:

      For purposes of this prospectus, any reference to the payment of principal of (or premium, if any), or interest on, or interest on debt securities will include Additional Amounts if required by the terms of the debt securities.

      The Indentures do not limit the amount of debt securities that we are authorized to issue from time to time. (Section 301) When a single Trustee is acting for all debt securities issued under an Indenture, those Securities are called the “Indenture Securities.” Each Indenture also provides that there may be more than one Trustee thereunder, each for a series of Indenture Securities. See “Resignation of Trustee” on page 16 of this prospectus. At a time when two or more Trustees are acting under either Indenture, each with respect to only certain series, the term “Indenture Securities” means the series of debt securities for which each respective Trustee is acting. If there is more than one Trustee under either Indenture, the powers and trust obligations of each Trustee will apply only to the Indenture Securities for which it is Trustee. If two or more Trustees are acting under either Indenture, then the Indenture Securities for which each Trustee is acting would be treated as if issued under separate indentures.

      We may issue Indenture Securities with terms different from those of Indenture Securities already issued. Without the consent of the holders thereof, we may reopen a previous issue of a series of Indenture Securities and issue additional Indenture Securities of that series unless the reopening was restricted when that series was created.

      If any series of debt securities are sold for, payable in or denominated in one or more foreign Currencies, we will specify applicable restrictions, elections, tax consequences, specific terms and other information in the applicable prospectus supplement.

      There is no requirement that we issue debt securities in the future under the Indentures, and we may use other indentures or documentation containing different provisions in connection with future issues of such other debt securities.

      We may issue the debt securities as “original issue discount securities,” which are debt securities, including any zero-coupon debt securities, that are issued and sold at a discount from their stated principal amount. Original issue discount securities provide that, upon acceleration of their maturity, an amount less than their principal amount will become due and payable. We will describe United States federal income tax consequences and other considerations applicable to original issue discount securities in any prospectus supplement relating to them.

Conversion and Exchange

      If you may convert or exchange debt securities for other Securities, the prospectus supplement will explain the terms and conditions of such conversion or exchange, including:

      The terms may also include provisions under which the number or amount of other Securities to be received by the holders of such debt securities upon conversion or exchange would be calculated according to the market price of such other Securities as of a time stated in the prospectus supplement.

Additional Mechanics

      We may issue debt securities as follows:

      You may have your Registered Securities separated into smaller denominations or combined into larger denominations, as long as the total principal amount is not changed. (Section 305) This is called an “exchange.” If provided in the prospectus supplement, you may exchange your Bearer Securities with all unmatured coupons, except as provided below, and all matured coupons which are in default for Registered Securities of the same series as long as the total principal amount is not changed. Bearer Securities surrendered in exchange for Registered Securities between a Regular Record Date or a Special Record Date and the relevant interest payment dates will be surrendered without the coupon relating to such interest payment dates. Interest will not be payable in respect of the Registered Security issued in exchange for that Bearer Security, but will be payable only to the holder of such coupon when due in accordance with the terms of the applicable Indenture. Unless we specify otherwise in the prospectus supplement, we will not issue Bearer Securities in exchange for Registered Securities. (Section 305)

      You may transfer Registered Securities of a series and you may exchange debt securities of a series at the office of the Trustee. The Trustee will act as our agent for registering Registered Securities in the names of holders and transferring debt securities. We may designate someone else to perform this function. Whoever maintains the list of registered holders is called the “Security Registrar.” The Security Registrar also will perform transfers. (Section 305)

      You will not be required to pay a service charge to transfer or exchange debt securities, but you may be required to pay for any tax or other governmental charge associated with the exchange or transfer. The transfer or exchange will be made only if the Security Registrar is satisfied with your proof of ownership. (Section 305)

      If we designate additional transfer agents, we will name them in the accompanying prospectus supplement. We may cancel the designation of any particular transfer agent. We may also approve a change in the office through which any transfer agent acts.

      If we redeem less than all of the Securities of a redeemable series, we may block the transfer or exchange of Securities during the period beginning 15 days before the day we mail the notice of redemption or publish the notice (in the case of Bearer Securities) and ending on the day of that mailing or publication, as the case may be, in order to freeze the list of holders to prepare the mailing. We may also decline to register transfers or exchanges of debt securities selected for

redemption, except that we will continue to permit transfers and exchanges of the unredeemed portion of any debt security being partially redeemed. (Section 305)

      If the offered debt securities are redeemable, we will describe the procedures for redemption in the accompanying prospectus supplement.

      In this “Additional Mechanics” section of this prospectus, “you” means direct holders and not indirect holders of debt securities.

Payment and Paying Agents

      We will pay interest to you, if you are listed in the Trustee’s records as the owner of your debt security at the close of business on a particular day in advance of each due date for interest on your debt security. Interest will be paid to you if you are listed as the owner even if you no longer own the debt security on the interest due date. That particular day, usually about two weeks in advance of the interest due date, is called the “Regular Record Date” and is defined in the prospectus supplement. Persons who are listed in the Trustee’s records as the owners of debt securities at the close of business on a particular day are referred to as “holders.” (Section 307) Holders buying and selling debt securities must work out between themselves the appropriate purchase price since we will pay all the interest for an interest period to the holders on the Regular Record Date. The most common manner is to adjust the sales price of the debt securities to prorate interest fairly between buyer and seller based on their respective ownership periods within the particular interest period.

      We will deposit interest, principal and any other money due on the debt securities with the Paying Agent that we name in the prospectus supplement.

      If you plan to have a bank or brokerage firm hold your securities, you should ask them for information on how you will receive payments. (Section 305)

      If we issue Bearer Securities, unless we provide otherwise in the prospectus supplement, we will maintain an office or agency outside the United States for the payment of all amounts due on the Bearer Securities. If we list the debt securities on any stock exchange located outside the United States, we will maintain an office or agency for those debt securities in any city located outside the United States required by that stock exchange. (Section 1002) We will specify the initial locations of such offices and agencies in the prospectus supplement. Unless otherwise provided in the prospectus supplement, we will make payment of interest on any Bearer Securities on or before Maturity only against surrender of coupons for such interest installments as they mature. (Section 1001) Unless otherwise provided in the prospectus supplement, we will not make payment with respect to any Bearer Security at any of our offices or agencies in the United States or by check mailed to any address in the United States or by transfer to an account maintained with a bank located in the United States. Notwithstanding the foregoing, we will make payments of principal of (and premium, if any) and interest on Bearer Securities payable in U.S. dollars at the office of our Paying Agent in The City of New York if (but only if) payment of the full amount in U.S. dollars at all offices or agencies outside the United States is illegal or effectively precluded by exchange controls or other similar restrictions. (Section 1002)

      We may from time to time designate additional offices or agencies, approve a change in the location of any office or agency and, except as provided above, rescind the designation of any office or agency. (Section 1002)

Events of Default

      You will have special rights if an Event of Default occurs as to the debt securities of your series which is not cured, as described later in this subsection. (Section 501) Please refer to the prospectus supplement for information about any changes to the Events of Default or our covenants that are described below, including any addition of a covenant or other provision providing event risk or similar protection.

      What Is an Event of Default? The term “Event of Default” as to the debt securities of your series means any of the following:

      An Event of Default for a particular series of debt securities does not necessarily constitute an Event of Default for any other series of debt securities issued under an Indenture.

      The Trustee may withhold notice to the holders of debt securities of a particular series of any default if it considers its withholding of notice to be in the interest of the holders of that series, except that the Trustee may not withhold notice if the default is in the payment of principal of (or premium, if any), or interest on, the debt securities. (Section 601)

      Remedies if an Event of Default Occurs. If an Event of Default has occurred and we have not cured it, the Trustee or the holders of 25% in principal amount of the debt securities of the affected series may declare the entire principal amount of all the debt securities of that series to be due and immediately payable by notifying us (or the Trustee, if the holders give notice) in writing. This is called a declaration of acceleration of maturity. A declaration of acceleration of maturity may be canceled by the holders of at least a majority in principal amount of the debt securities of the affected series by notifying us (or the Trustee, if the holders give notice) in writing. (Section 502)

      Except in cases of default, where the Trustee has some special duties, the Trustee is not required to take any action under the Indenture at the request of any holders unless the holders offer the Trustee reasonable protection from expenses and liability (called an “indemnity”). (Section 602 and Trust Indenture Act Section 315) If reasonable indemnity is provided, the holders of a majority in principal amount of the Outstanding debt securities of the relevant series may direct the time, method and place of conducting any lawsuit or other formal legal action seeking any remedy available to the Trustee. The Trustee may refuse to follow those directions in certain circumstances. (Section 512) No delay or omission in exercising any right or remedy will be treated as a waiver of that right, remedy or Event of Default. (Section 511)

      Before you are allowed to bypass the Trustee and bring your own lawsuit or other formal legal action or take other steps to enforce your rights or protect your interest relating to the debt securities, the following must occur:

      However, you are entitled at any time to bring a lawsuit for the payment of money due on your debt securities on or after the due date. (Section 508)

      Holders of a majority in principal amount of the debt securities of the affected series may waive any past defaults other than the following:

      If your securities are held for you by a bank or brokerage firm, you should consult them for information on how to give notice or direction to the Trustee or make a request of the Trustee and how to make or cancel a declaration of acceleration.

      Each year, we will furnish the Trustee with a written statement of certain of our officers certifying that, to their knowledge, we are in compliance with the Indenture and the debt securities, or else specifying any default. (Section 1004)

Merger, Consolidation or Sale of Assets

      Under the terms of the Indentures, we are generally permitted to consolidate or merge with another firm. We are also permitted to sell or transfer our assets substantially as an entirety to another firm. (Section 801) However, we may not take any of these actions unless all of the following conditions are met:

Modification or Waiver

      There are three types of changes that we can make to the Indentures and the debt securities.

      Changes Requiring Your Approval. First, there are changes that cannot be made to your debt securities without your specific approval. (Section 902) Following is a list of those types of changes:

      Changes Requiring a Majority Vote. The second type of change to the Indenture and the outstanding debt securities is the kind that requires a vote in favor by holders of Outstanding debt securities owning a majority of the principal amount of the particular series affected. Most changes fall into this category, except for clarifying changes and certain other changes that would not adversely affect holders of the Outstanding debt securities in any material respect. The same vote would be required for us to obtain a waiver of all or part of certain covenants in the applicable Indenture (Section 1011 of the Senior Indenture and Section 1008 of the Subordinated Indenture) or a waiver of a past default. However, we cannot obtain a waiver of a payment default or any other aspect of the Indentures or the Outstanding debt securities listed in the first category described above under “—Changes Requiring Your Approval” unless we obtain your individual consent to the waiver. (Section 902)

      Changes Not Requiring Approval. The third type of change does not require any vote by you as holders of Outstanding debt securities. This type is limited to clarifications and certain other changes that would not adversely affect holders of the Outstanding debt securities in any material respect. (Section 901)

      Further Details Concerning Voting. When taking a vote, we will use the following rules to decide how much principal amount to attribute to a debt security:

      Debt securities will not be considered Outstanding, and therefore not eligible to vote, if we have deposited or set aside in trust for you money for their payment or redemption. Debt securities will also not be eligible to vote if they have been fully defeased as described later under “Defeasance and Covenant Defeasance.” (Section 101)

      We will generally be entitled to set any day as a record date for the purpose of determining the holders of debt securities that are entitled to vote or take other action under the applicable Indenture. If we set a record date for a vote or other action to be taken by holders of a particular series, that vote or action may be taken only by persons who are holders of debt securities of that series on the record date. (Section 104)

      If your securities are held by a bank or brokerage firm, you should consult them for information on how approval may be granted or denied if we seek to change the applicable Indenture or the debt securities or request a waiver.

      Each Indenture contains provisions for convening meetings of the holders of debt securities issued as Bearer Securities. (Section 1501 of the Senior Indenture and Section 1701 of the Subordinated Indenture) A meeting may be called at any time by the applicable Trustee, and also, upon request, by us or by the holders of at least 10% in principal amount of the Outstanding debt securities of that series, upon notice given as provided in the applicable Indenture. (Section 1502 of the Senior Indenture and Section 1702 of the Subordinated Indenture)

      Except for any consent that must be given by the holder of each debt security affected thereby, as described above, the holders of a majority in principal amount of the Outstanding debt securities of a series may adopt any resolution presented at a meeting at which a quorum is present. However, any resolution with respect to any action which the Indenture expressly provides may be taken by a specified percentage less than a majority in principal amount of the Outstanding debt securities of a series may be adopted at a meeting at which a quorum is present by vote of that specified percentage. Any resolution passed or decision taken at any meeting of holders of debt securities of a series in accordance with the applicable Indenture will be binding on all holders of debt securities of that series and any related coupons. The quorum at any meeting called to adopt a resolution will be persons holding or representing a majority in principal amount of the Outstanding debt securities of a series, except that if any action is to be taken at such meeting which may be given by the holders of not less than a specified percentage in principal amount of the Outstanding debt securities of a series, the persons holding or representing such specified percentage in principal amount of the Outstanding debt securities of that series will constitute a quorum. (Section 1504 of the Senior Indenture and Section 1704 of the Subordinated Indenture)

      Notwithstanding the above, if any action is to be taken at a meeting of holders of debt securities of a series that the applicable Indenture expressly provides may be taken by the holders of a specified percentage in principal amount of all Outstanding debt securities affected thereby or of the holders of such series and one or more additional series:

Defeasance and Covenant Defeasance

      The following discussion of defeasance and covenant defeasance will be applicable to your series of debt securities only if we choose to have them apply to that series. If we do so choose, we will specify the choice in the prospectus supplement. (Section 1401)

      Defeasance. If there is a change in U.S. federal tax law, as described below, we can legally release ourselves from all payment and other obligations on the debt securities (called “defeasance”) if we put in place the following other arrangements for you to be repaid:

      If we ever accomplish defeasance, as described above, you would have to rely solely on the trust deposit for repayment of the debt securities. You could not look to us for repayment in the event of any shortfall. Conversely, the trust deposit would most likely be protected from claims of our lenders and other creditors if we ever become bankrupt or insolvent. You would also be released from the subordination provisions on the subordinated debt securities described later under “Subordination” on page 18 of this prospectus. If we accomplish a defeasance, we would retain only the obligations to register the transfer or exchange of the debt securities, to maintain an office or agency in respect of the debt securities and to hold monies for payment in trust.

      Covenant Defeasance. Under current U.S. federal tax law, we can make the same type of deposit described above and be released from some of the restrictive covenants in the Indentures. These covenants relate to “Limitation on Liens” and “Limitation on Sale and Leaseback Transactions” described in Sections 1009 and 1010, respectively, of the Senior Indenture and are summarized beginning on page 16 of this prospectus. We can also be released from any other covenant in the Indentures which may be specified in the prospectus supplement if we make the same type of deposit described above. This is called “covenant defeasance.” In that event, you would lose the protection of those covenants but would gain the protection of having money and debt securities set aside in trust to repay the debt securities. You also would be released from the

subordination provisions on the subordinated securities described under “Subordination” on page 18 of this prospectus. In order to achieve covenant defeasance, we must do the following:

      If we accomplish covenant defeasance, you can still look to us for repayment of the debt securities if there were a shortfall in the trust deposit or the Trustee were prevented from making payment. In fact, if one of the remaining Events of Default occurred, such as our bankruptcy, and the debt securities become immediately due and payable, there may be such a shortfall. Depending on the event causing the default, you may not be able to obtain payment of the shortfall.

Book-Entry Debt Securities

      We may issue debt securities of a series in whole or in part in global form that we will deposit with, or on behalf of, a depositary that we identify in a prospectus supplement. Global securities may be issued in either registered or bearer form and in either temporary or permanent form (each, a “Global Security”). Global Securities will be registered in the name of a financial institution we select, and the debt securities included in the Global Securities may not be transferred to the name of any other direct holder unless the special circumstances described below occur. The financial institution that acts as the sole direct holder of the Global Security is called the “Depositary.” Any person wishing to own a debt security must do so indirectly by virtue of an account with a broker, bank or other financial institution that, in turn, has an account with the Depositary.

      Special Investor Considerations for Global Securities. Our obligations, as well as the obligations of the Trustee and those of any third parties employed by us or the Trustee, run only to Persons who are registered as holders of debt securities. For example, once we make payment to the registered holder, we have no further responsibility for the payment even if that holder is legally required to pass the payment along to you but does not do so. As an indirect holder, your rights relating to a Global Security will be governed by the account rules of your financial institution and of the Depositary, as well as general laws relating to debt securities transfers.

      You should be aware that when we issue debt securities in the form of Global Securities:

      Special Situations When Global Security Will Be Terminated. In a few special situations described below, a Global Security will terminate and interests in it will be exchanged for physical certificates representing debt securities. After that exchange, the choice of whether to hold debt securities directly or indirectly through an account at your bank or brokerage firm will be up to you. You must consult your own bank or broker to find out how to have interests in debt securities transferred to your own name, so that you will hold them directly.

      The special situations for termination of a Global Security are:

      The prospectus supplement may list situations for terminating a Global Security that would apply only to the particular series of debt securities covered by the prospectus supplement. When a Global Security terminates, the Depositary (and neither we nor the Trustee) is responsible for deciding the names of the institutions that will be the initial direct holders. (Section 302) Unless otherwise provided in the prospectus supplement, debt securities that are represented by a Global Security will be issued in denominations of $1,000 and any integral multiple thereof and will be issued in registered form only, without coupons.

Resignation of Trustee

      Each Trustee may resign or be removed with respect to one or more series of Indenture Securities, and a successor Trustee may be appointed to act with respect to such series. (Section 608) In the event that two or more persons are acting as Trustee with respect to different series of Indenture Securities under one of the Indentures, each such Trustee will be a Trustee of a trust separate and apart from the trust administered by any other such Trustee (Section 609), and any action described herein to be taken by the “Trustee” may then be taken by each such Trustee with respect to, and only with respect to, the one or more series of Indenture Securities for which it is Trustee.

Senior Indenture Provisions

Limitation on Sale and Leaseback Transactions

      Under the terms of the Senior Indenture, we will not, and will not permit any Restricted Subsidiary (as defined) to, sell or transfer any manufacturing plant owned by us or any Restricted Subsidiary with the intention of taking back a lease on such property unless:

      These provisions are intended to preserve our assets and to limit our ability to incur leases which effectively constitute indebtedness.

Limitation on Liens

      Under the terms of the Senior Indenture, with certain exceptions, we will not, directly or indirectly, and we will not permit any Restricted Subsidiary to, create or assume any mortgage, pledge or other lien of or upon any of our or their assets unless all of the outstanding Indenture Securities of each series are secured by such mortgage, pledge or lien equally and ratably with any and all other obligations and indebtedness thereby secured for so long as any such other obligations and indebtedness will be so secured. Among the exceptions are:

      In addition, we or any Restricted Subsidiary may create or assume any mortgage, pledge or other lien not otherwise permitted by the Senior Indenture for the purpose of securing indebtedness or other obligations so long as the aggregate of all such indebtedness and other obligations then outstanding, together with the value of all outstanding Sale and Leaseback Transactions not otherwise permitted, will not exceed 10% of Consolidated Net Tangible Assets. (Section 1009 of the Senior Indenture)

Definitions

      The Senior Indenture defines the term “Consolidated Net Tangible Assets” as our total assets and those of our consolidated subsidiaries, including the investment in (at equity) and the net amount of advances to and accounts receivable from corporations which are not consolidated subsidiaries, less the following:

      Consolidated Net Tangible Assets is to be determined on a consolidated basis in accordance with generally accepted accounting principles and as provided in the Senior Indenture. (Section 101 of the Senior Indenture)

      The Senior Indenture defines the term “Restricted Subsidiary” as any of our subsidiaries except:

      The Senior Indenture defines the term “Funded Debt” as indebtedness for borrowed money owed or guaranteed by us or any of our consolidated subsidiaries, and any other indebtedness which under generally accepted accounting principles would appear as debt on the balance sheet of such corporation, which matures by its terms more than twelve months from the date as of which Funded Debt is to be determined or is extendible or renewable at the option of the obligor to a date more than twelve months from the date as of which Funded Debt is to be determined. (Section 101 of the Senior Indenture)

      For purposes of Limitation on Liens and Limitation on Sale and Leaseback Transactions, the Senior Indenture defines the term “value” with respect to a manufacturing plant as the amount equal to the greater of:

      This amount is divided first by the number of full years of the term of the lease and then multiplied by the number of full years of such term remaining at the time of determination, without regard to renewal or extension options contained in such lease. (Section 1010 of the Senior Indenture)

Subordinated Indenture Provisions

Subordination

      Article 16 of the Subordinated Indenture provides that the payment of principal of (and premium, if any), and interest on, subordinated securities will be subordinated in right of payment to the prior

payment in full of Senior Indebtedness. We may make no payment with respect to subordinated securities while a default exists with respect to our Senior Indebtedness.

      The Subordinated Indenture defines “Senior Indebtedness” as:

      Any indebtedness that becomes indebtedness of our company by operation of merger, consolidation or other acquisition will constitute Senior Indebtedness if that indebtedness would have been Senior Indebtedness had it been issued by us. By reason of this subordination, in the event that we become insolvent, holders of our Senior Indebtedness may receive more, ratably, and holders of Subordinated Indebtedness may receive less, ratably, than our other creditors. The Subordinated Indenture does not limit our ability to issue Senior Indebtedness.

      If this prospectus is being delivered in connection with a series of subordinated debt, the accompanying prospectus supplement or the information incorporated by reference will set forth the approximate amount of Senior Indebtedness outstanding as of a recent date.

The Trustees Under the Indentures

      JPMorgan Chase Bank, N.A. is the Trustee under the Senior Indenture. We may appoint JPMorgan Chase Bank, N.A. as trustee under the Subordinated Indenture. JPMorgan Chase Bank, N.A. is among the banks with which we maintain ordinary banking relationships. JPMorgan Chase Bank, N.A. also serves as trustee under other indentures under which our 5.25% Notes due 2035 (“5.25% Notes”), 5.45% Senior Debentures due 2034 (“5.45% Debentures”), 7.65% Debentures due 2029 (“7.65% Debentures”), 7.875% Debentures due 2026 (“7.875% Debentures”), 6¹/2% Debentures due 2025 (“6¹/2% Debentures”), 7⁵/8% Debentures due 2024 (“7⁵/8% Debentures”), 4.65% Notes due 2015 (“4.65% Notes”), 5.75% Notes due 2012 (“5.75% Notes”), and 8% Debentures due 2006 (“8% Debentures”) are outstanding.

      In the event that a default occurs under either Indenture or under the indentures which govern the 5.25% Notes, the 5.45% Debentures, the 7.65% Debentures, the 7.875% Debentures, the 6¹/2% Debentures, the 7⁵/8% Debentures, the 4.65% Notes, the 5.75% Notes, or the 8% Debentures at a time when Indenture Securities are outstanding under the Subordinated Indenture, unless the default is cured or waived within 90 days, the provisions of the Trust Indenture Act require that, if JPMorgan Chase Bank, N.A. is Subordinated Trustee, it must resign as Trustee under either the Subordinated Indenture or each of the Senior Indenture, the 5.25% Notes indenture, the

5.45% Debentures indenture, the 7.65% Debentures indenture, the 6¹/2% Debentures indenture, the 7⁵/8% Debentures indenture, the 4.65% Notes indenture, the 5.75% Notes indenture and the 8% Debentures indenture. In such circumstance, we expect that JPMorgan Chase Bank, N.A. would resign as Trustee under the Subordinated Indenture.

Foreign Currency Risks—Fluctuations and Controls

      Debt securities denominated or payable in foreign currencies may entail significant risks. For example, the value of the currencies, in comparison to U.S. dollars, may decline, or foreign governments may impose or modify controls regarding the payment of foreign currency obligations. These events may cause the value of debt securities denominated or payable in those foreign currencies to fall substantially. These risks will vary depending upon the foreign currency or currencies involved and will be more fully described in the applicable prospectus supplement.

DESCRIPTION OF DEBT WARRANTS

      We may issue, either together with other debt securities or preferred shares or separately, debt warrants to purchase underlying debt securities. We will issue debt warrants, if any, under warrant agreements (each, a “debt warrant agreement”) that would be between us and a bank or trust company, as warrant agent (the “debt warrant agent”), that we will describe in a prospectus supplement. The form of the debt warrant agreement is contained in a registration statement that we have filed with the SEC. See “Where You Can Find More Information” on page 2 of this prospectus for information on how to obtain a copy of the debt warrant agreement. The following is a summary of the material terms of the debt warrant agreement. This summary is not complete and is qualified in its entirety by reference to all the provisions of the debt warrant agreement and the accompanying debt warrant certificates, including the definitions therein of certain terms.

General

      You should read the prospectus supplement for the terms of the offered debt warrants, including the following:

      Debt warrant certificates may be exchanged for new debt warrant certificates of different denominations and, if in registered form, may be presented for registration of transfer, and may be exercised at the corporate trust office of the debt warrant agent or any other office indicated in the prospectus supplement relating thereto. (Section 3.01 of the debt warrant agreement)

Exercise of Debt Warrants

      Each offered debt warrant will entitle the holder thereof to purchase such amount of underlying debt securities at the exercise price set forth in, or calculable from, the prospectus supplement relating to such offered debt warrants. After the close of business on the expiration date, unexercised debt warrants will become void.

      You may exercise debt warrants by payment to the debt warrant agent of the applicable exercise price and by delivery to the debt warrant agent of the related debt warrant certificate, properly completed. Debt warrants will be deemed to have been exercised upon receipt of the exercise price, subject to the receipt by the debt warrant agent, within five business days thereafter, of the debt warrant certificate or certificates evidencing the debt warrants. Upon receipt of such payment and the properly completed debt warrant certificates at the corporate trust office of the debt warrant agent or any other office indicated in the prospectus supplement, we will, as soon as practicable, deliver the amount of the underlying debt securities purchased upon such exercise. If fewer than all of the debt warrants represented by any debt warrant certificate are exercised, a new debt warrant certificate will be issued for the unexercised debt warrants. If you hold a debt warrant, you must pay any tax or other governmental charge that may be imposed in connection with any transfer involved in the issuance of underlying debt securities purchased upon such exercise.

Modifications

      There are three types of changes we can make to the debt warrant agreement and the offered debt warrants.

      Changes Requiring Your Approval. First, there are changes that cannot be made to your debt warrants without your specific approval. Those types of changes include modifications and amendments that:

      Changes Requiring a Majority Vote. The second type of change to the debt warrant agreement and the offered debt warrants is the kind that requires a vote in favor by holders of debt warrants owning a majority of the principal amount of the particular series affected. Most changes fall into this category.

      Changes Not Requiring Approval. The third type of change does not require any vote by holders of debt warrants. This type of change is limited to clarifications and other changes that would not adversely affect holders of the debt warrants.

No Rights as Holders of Underlying Debt Securities

      Before you exercise the warrants, you are not entitled to payments of principal of (or premium, if any), or interest on, the related underlying debt securities or to exercise any other rights whatsoever as a holder of the underlying debt securities.

DESCRIPTION OF PREFERRED SHARES

      The following description sets forth the general terms and provisions of the preferred shares. If we offer preferred shares, we will describe the specific designation and rights in a prospectus supplement, and we will file a description with the SEC.

General

      Our Board of Directors is authorized without further shareholder action to issue one or more series of up to 14,106,394 preferred shares. The Board of Directors can also determine the number of shares, dividend rates, dividend payment dates and dates from which dividends will be cumulative, redemption rights or prices, sinking fund provisions, liquidation prices, conversion rights and restrictions on the issuance of shares of the same series or any other class or series. As of the date of this prospectus, no preferred shares are issued or outstanding.

      The preferred shares will have the dividend, liquidation, redemption, voting rights and conversion rights set forth below unless otherwise provided in the prospectus supplement relating to a particular series of offered preferred shares.

      We will set forth the following terms of the offered preferred shares in the prospectus supplement:

      The preferred shares will be fully paid and nonassessable, and for each share issued, a sum equal to the stated value will be credited to our preferred stock account.

      We are subject to certain provisions of Ohio law, each of which may have the effect of delaying, deferring or preventing a change in control of our company. See “Description of Common Shares— Certain Ohio Statutes.”

Dividends

      As a holder of offered preferred shares, you will be entitled to receive cash dividends, when and as declared by the Board of Directors out of our assets legally available for payment, at such rate and on such quarterly dates as will be set forth in the applicable prospectus supplement. Each dividend will be payable to holders of record as they appear on our stock books on the record dates fixed by the Board of Directors. Dividends will be cumulative from and after the date set forth in the applicable prospectus supplement.

      If we have not paid or declared and set apart for payment full cumulative dividends on any preferred shares for any dividend period or we are in default with respect to the redemption of preferred shares or any sinking fund for any preferred shares, we may not do the following:

      If dividends on preferred shares are in arrears, and there will be outstanding shares of any other series of preferred shares ranking on a parity as to dividends with the preferred shares, we, in making any dividend payment on account of such arrears, are required to make payments ratably upon all outstanding preferred shares and such other series of preferred shares in proportion to the respective amounts of dividends in arrears on such preferred shares and shares of such other series.

Liquidation Rights

      In the event of any voluntary or involuntary liquidation, dissolution or winding up of our company, the holders of the offered preferred shares will be entitled to receive liquidating distributions in the amount set forth in the applicable prospectus supplement plus all accrued and unpaid dividends. This distribution will be made out of our assets available for distribution to shareholders and will be made before any distribution is made to holders of our common shares. If, upon any voluntary or involuntary liquidation, dissolution or winding up of our company, the amounts payable with respect to the preferred shares and any of our other shares ranking on a parity with the preferred shares are not paid in full, the holders of those shares will share ratably in any such distribution of our assets in proportion to the full respective preferential amounts to which they are entitled. After payment of the full amount of the liquidating distribution to which they are entitled, the holders of preferred shares will not be entitled to any further participation in any distribution of our assets. A consolidation or merger of our company with or into any other corporation or corporations or a sale of all or substantially all of our assets will not be deemed to be a liquidation, dissolution or winding up of our company.

Redemption

      The offered preferred shares will be redeemable in whole or in part at our option, at the times and at the redemption prices that we set forth in the applicable prospectus supplement.

      We may not redeem less than all the outstanding shares of any series of preferred shares unless full cumulative dividends have been paid or declared and set apart for payment upon all outstanding shares of such series of preferred shares for all past dividend periods. In addition, all of our matured obligations with respect to all sinking funds, retirement funds or purchase funds for all series of preferred shares then outstanding must have been met.

Voting Rights

      The holders of the offered preferred shares are entitled to one vote per share on all matters presented to our shareholders.

      If the equivalent of six quarterly dividends payable on any series of preferred shares are in default, whether or not declared or consecutive, the holders of all outstanding series of preferred shares, voting as a single class without regard to series, will be entitled to elect two directors until all dividends in default have been paid or declared and set apart for payment. The holders of preferred shares will not have or exercise such special class voting rights except at meetings of the shareholders for the election of directors at which the holders of not less than a majority of the outstanding preferred shares of all series are present in person or by proxy.

      The affirmative vote of the holders of at least two-thirds of the outstanding preferred shares, voting as a single class without regard to series, will be required for any amendment of our Amended Articles of Incorporation or Amended Regulations that will adversely affect the preferences, rights or voting powers of the preferred shares. If not all series of preferred shares would be affected as to their preferences, rights or voting powers, only the consent of holders of at least two-thirds of the shares of each series that would be affected, voting separately as a class, will be required. A two-thirds vote is also required to issue any class of stock that will have preference as to dividends or distribution of assets over any outstanding series of preferred shares.

      The affirmative vote of the holders of a majority of the outstanding preferred shares will be necessary to increase the authorized number of preferred shares or to authorize any shares ranking on a parity with the preferred shares. The Regulations may be amended to increase the number of directors, without the vote of the holders of outstanding preferred shares.

Conversion Rights

      We will state in the prospectus supplement for any series of offered preferred shares whether shares in that series are convertible into common shares. Unless otherwise provided in the applicable prospectus supplement, if a series of preferred shares is convertible into common shares, holders of convertible preferred shares of that series will have the right, at their option and at any time, to convert any of those convertible preferred shares in accordance with their terms. However, if that series of convertible preferred shares is called for redemption, the conversion rights pertaining to such series will terminate at the close of business on the date before the redemption date.

      Unless we specify otherwise in the applicable prospectus supplement, the conversion rate is subject to adjustment in certain events, including the following:

      No adjustments in the conversion rate will be made as a result of regular quarterly or other periodic or recurrent cash dividends or distributions or for cash dividends or distributions to the extent paid from retained earnings. No adjustment in the conversion price will be required unless such adjustment would require a change of at least 1% in the conversion price then in effect or a period of three years will have elapsed from the date of occurrence of any event requiring any such adjustment; provided that any adjustment that would otherwise be required to be made will be carried forward and taken into account in any subsequent adjustment. We reserve the right to make such increases in the conversion rate in addition to those required in the foregoing provisions as we, in our discretion, determine to be advisable in order that certain stock-related distributions or subdivisions of the common shares hereafter made by us to our shareholders will not be taxable. Except as stated above, the conversion rate will not be adjusted for the issuance of common shares or any securities convertible into or exchangeable for common shares, or securities carrying the right to purchase any of the foregoing.

      In the case of:

as a result of which holders of common shares will be entitled to receive stock, securities, or other property or assets, including cash, with respect to or in exchange for such common shares, the holders of the convertible preferred shares then outstanding will be entitled thereafter to convert those convertible preferred shares into the kind and amount of shares and other securities or property which they would have received upon such reclassification, change, consolidation, merger, combination, sale or conveyance had those convertible preferred shares been converted into common shares immediately prior to the reclassification, change, consolidation, merger, combination, sale or conveyance.

      In the event of a taxable distribution to holders of common shares or other transaction which results in any adjustment of the conversion rate, the holders of convertible preferred shares may, in certain circumstances, be deemed to have received a distribution subject to United States federal income tax as a dividend; in certain other circumstances, the absence of such an adjustment may result in a taxable dividend to the holders of common shares or the convertible preferred shares.

DESCRIPTION OF COMMON SHARES

      The following is a summary of the material provisions concerning the common shares contained in our Amended Articles of Incorporation (“Articles”) and our Amended Regulations (“Regulations”), as affected by debt agreements. Reference is made to such Articles and Regulations, which we have filed with the SEC. See “Where You Can Find More Information” on page 2 of this prospectus for information on how to obtain a copy of the Articles and Regulations. Our common shares are listed on the New York Stock Exchange, the Chicago Stock Exchange, and the Pacific Exchange.

Authorized Number

      The Articles authorize the issuance of up to 300,000,000 common shares. Common shares issued and outstanding totaled 148,106,000 on October 31, 2005. The outstanding common shares are fully paid and non-assessable, and shareholders are not subject to any liability for calls and assessments. The Articles also authorize the issuance of up to 14,106,394 preferred shares. Currently, there are no preferred shares issued and outstanding.

Dividends

      Holders of common shares may receive dividends that our Board of Directors declares.

Voting Rights

      Each common share entitles the holder to one vote. Directors are elected by cumulative voting, which means that each common share entitles the holder to the number of votes equal to the number of directors to be elected. All votes in respect of such common share may be cast for one or more of the directors to be elected. Cumulative voting may have the effect of increasing minority shareholders’ representation on the Board of Directors.

      The Articles provide that action may be taken by the vote of the holders of shares entitling them to exercise a majority of the voting power of the Company, except in each case as is otherwise provided in the Articles or Regulations. The Articles and Regulations provide for a voting proportion, which is different from that provided by statutory law, in order for shareholders to take action in certain circumstances, including the following:

      The requirement of a two-thirds vote in certain circumstances may have the effect of delaying, deferring or preventing a change in control of our Company.

Liquidation Rights

      In the event of any voluntary or involuntary liquidation, dissolution or winding up of our company, after the payment or provision for payment of our debts and other liabilities and the preferential amounts to which holders of our preferred shares are entitled, if any such preferred shares are then outstanding, the holders of the common shares are entitled to share pro rata in our assets remaining for distribution to shareholders.

Miscellaneous Rights, Listing and Transfer Agents

      Our common shares have no preemptive or conversion rights and there are no redemption or sinking fund provisions applicable thereto.

      Our outstanding common shares are listed on the New York Stock Exchange, the Chicago Stock Exchange and the Pacific Exchange. Equiserve Trust Company N.A. is the transfer agent and registrar for our common shares.

Classification of Board of Directors

      Our Board of Directors is divided into three approximately equal classes, having staggered terms of office of three years each. The effect of a classified board of directors, where cumulative voting is in effect, is to require the votes of more shares to elect one or more members of the Board of Directors than would be required if the Board of Directors were not classified. Additionally, the effect of a classified board of directors may be to make it more difficult to acquire control of our company.

Certain Ohio Statutes

      Various laws may affect the legal or practical ability of shareholders to dispose of shares of our company. Such laws include the Ohio statutory provisions described below.

      Chapter 1704 of the Ohio Revised Code prohibits an interested shareholder (defined as a beneficial owner, directly or indirectly, of ten percent (10%) or more of the voting power of any issuing public Ohio corporation) or any affiliate or associate of an interested shareholder (as defined in Section 1704.01 of the Ohio Revised Code) from engaging in certain transactions with the corporation during the three-year period after the interested shareholder’s share acquisition date.

      The prohibited transactions include mergers, consolidations, majority share acquisitions, certain asset sales, loans, certain sales of shares, dissolution, and certain reclassifications, recapitalizations, or other transactions that would increase the proportion of shares held by the interested shareholder.

      After expiration of the three-year period, the corporation may participate in such a transaction with an interested shareholder only if, among other things:

      The prohibitions do not apply if, before the interested shareholder becomes an interested shareholder, the board of directors of the corporation approves either the interested shareholder’s acquisition of shares or the otherwise prohibited transaction. The restrictions also do not apply if a person inadvertently becomes an interested shareholder or was an interested shareholder prior to the adoption of the statute on April 11, 1990, unless, subject to certain exceptions, the interested shareholder increases his, her or its proportionate share interest on or after April 11, 1990.

      Pursuant to Ohio Revised Code Section 1707.043, a public corporation formed in Ohio may recover profits that a shareholder makes from the sale of the corporation’s securities within eighteen (18) months after making a proposal to acquire control or publicly disclosing the possibility of a proposal to acquire control. The corporation may not, however, recover from a person who proves in a court of competent jurisdiction either of the following:

      Also, before the corporation may obtain any recovery, the aggregate amount of the profit realized by such person must exceed $250,000. Any shareholder may bring an action on behalf of the corporation if a corporation fails or refuses to bring an action to recover these profits within sixty (60) days of a written request. The party bringing such an action may recover attorneys’ fees if the court having jurisdiction over such action orders recovery of any profits.

Control Share Acquisition Act

      We are also subject to Ohio’s Control Share Acquisition Act (Ohio Revised Code 1701.831). The Control Share Acquisition Act provides that, with certain exceptions, a person may acquire beneficial ownership of shares in certain ranges (one-fifth or more but less than one-third, one-third or more but less than a majority, or a majority or more) of the voting power of the outstanding shares of an Ohio corporation meeting certain criteria, which our company meets, only if such person has submitted an “acquiring person statement” and the proposed acquisition has been approved by the vote of a majority of the shares of the corporation represented at a special meeting called for such purpose and by a majority of such shares of the corporation excluding “interested shares,” as defined in Section 1701.01 of the Ohio Revised Code.

PLAN OF DISTRIBUTION

      We may sell the offered securities as follows:

      We will identify any underwriters or agents and describe their compensation in a prospectus supplement.

      We, directly or through agents, may sell, and the underwriters may resell, the offered securities in one or more transactions, including negotiated transactions. These transactions may be:

      In connection with the sale of offered securities, the underwriters or agents may receive compensation from us or from purchasers of the offered securities for whom they may act as agents. The underwriters may sell offered securities to or through dealers, who may also receive compensation from purchasers of the offered securities for whom they may act as agents. Compensation may be in the form of discounts, concessions or commissions. Underwriters, dealers and agents that participate in the distribution of the offered securities may be underwriters as defined in the Securities Act of 1933, and any discounts or commissions received by them from us and any profit on the resale of the offered securities by them may be treated as underwriting discounts and commissions under the Securities Act of 1933.

      We will indemnify the underwriters and agents against certain civil liabilities, including liabilities under the Securities Act of 1933.

      Underwriters, dealers and agents may engage in transactions with, or perform services for, us or our affiliates in the ordinary course of their business.

      If we indicate in the prospectus supplement relating to a particular series or issue of offered securities, we will authorize underwriters, dealers or agents to solicit offers by certain institutions to purchase such offered securities from us pursuant to delayed delivery contracts providing for payment and delivery at a future date. Such contracts will be subject only to those conditions that we specify in the prospectus supplement, and we will specify in the prospectus supplement the commission payable for solicitation of such contracts.

LEGAL OPINIONS

      The validity of the offered securities will be passed upon for us by Mark Hennessey, Deputy General Counsel, and for any underwriters, dealers or agents by Shearman & Sterling LLP, 599 Lexington Avenue, New York, New York 10022. Mr. Hennessey is paid a salary by our company and participates in various employee benefit plans offered by us, including equity based plans.

EXPERTS

      Ernst & Young LLP, independent registered public accounting firm, has audited our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2004, and management’s assessment of the effectiveness of our internal control over financial reporting as of December 31, 2004, as set forth in their reports, which are incorporated by reference in this prospectus and elsewhere in the registration statement. Our financial statements and management’s assessment are incorporated by reference in reliance on Ernst & Young LLP’s reports, given on their authority as experts in accounting and auditing.

$                              

Eaton Corporation

Floating Rate Notes due 2009

PROSPECTUS SUPPLEMENT

August       , 2006

Banc of America Securities LLC