Document:

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                                                                     EXHIBIT 4.3

                             COOPER INDUSTRIES, INC.
                                       AND
                               JPMORGAN CHASE BANK
                                   AS TRUSTEE

                          FIRST SUPPLEMENTAL INDENTURE
                            DATED AS OF MAY 15, 2002

                                   DEBENTURES
              SUPPLEMENT TO INDENTURE DATED AS OF JANUARY 15, 1990

This FIRST SUPPLEMENTAL INDENTURE (the "First Supplemental Indenture"), dated as
of May ___, 2002 (the "Execution Date"), is made and entered into between COOPER
INDUSTRIES, INC., an Ohio corporation, having its principal office at 600
Travis, Suite 5800, Houston, Texas 77002 (the "Company"), COOPER INDUSTRIES,
LTD., a Bermuda company, having its principal office at 600 Travis, Suite 5800,
Houston, Texas 77002 (the "Guarantor") and JPMORGAN CHASE BANK, a New York
banking corporation, as Trustee (the "Trustee").

WHEREAS, the Company entered into an Indenture dated as of January 15, 1990 (as
thereafter amended, the "Indenture"), with The Chase Manhattan Bank (National
Association), for the purpose of issuing its debentures, notes, bonds or other
evidences of indebtedness (the "Debentures") in one or more series, unlimited as
to aggregate principal amount and bearing such rates of interest, if any,
maturing at such time or times and having such other designations as shall be
fixed in accordance with the Indenture;

WHEREAS, the Trustee is the successor by merger to The Chase Manhattan Bank
(National Association) and has succeeded to all interests of such national
association under the Indenture;

WHEREAS, Company is in the process of reorganizing whereby it will effectively
change its place of incorporation from Ohio to Bermuda through a merger (the
"Merger");

WHEREAS, the Merger will be accomplished through the merger of a newly formed
Ohio corporation into the Company, in which the Company shall be the surviving
company in the merger and become a wholly owned, indirect subsidiary and a
Restricted Subsidiary (as hereinafter defined) of Guarantor, to be effective
upon the date (the "Merger Date") that a certificate of merger is filed with the
Secretary of State of the State of Ohio in accordance with Ohio law;

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WHEREAS, in connection therewith, to be effective as of the Merger Date, the
Company proposes to add Guarantor as a corporate guarantor of certain payment
obligations and various terms of the Indenture and to modify other terms of the
Indenture;

WHEREAS, the entry into this Supplemental Indenture by the parties hereto is in
all respects permitted by the provisions of Section 11.01 of the Indenture; and

WHEREAS, all corporate and other action necessary to make this Supplemental
Indenture a valid and binding agreement of the Company and the Guarantor in
accordance with its terms have been done.

NOW, THEREFORE, in consideration of the foregoing premises, it is mutually
covenanted and agreed as follows:

SECTION 1. The Indenture is hereby amended by amending and restating in their
entirety the following definitions in Section 1.01 in the correct alphabetical
order:

Board of Directors:

         The term "Board of Directors" means the Board of Directors of the
Guarantor, or any committee of such Board of Directors, or any committee of
officers of the Guarantor, duly authorized to take any action hereunder.

Certified Resolutions or Board Resolutions:

         The terms "Certified Resolutions" or "Board Resolutions" shall mean a
copy delivered to the Trustee of a resolution of the Board of Directors,
certified by the Secretary or Assistant Secretary of the Guarantor, to have been
duly adopted and to be in full force and effect on the date of such
certification.

Officers' Certificate:

         The term "Officers' Certificate" shall mean with respect to any Person,
a certificate signed by two officers of such Person, one of whom shall be the
principal financial officer, from among the Chairman of the Board, the
President, any Vice President or the Chief Financial Officer, and by the
Treasurer, an Assistant Treasurer, the Controller, an Assistant Controller, the
Secretary or an Assistant Secretary of such Person, and delivered to the
Trustee. Wherever this Indenture requires that an Officers' Certificate be
signed also by an accountant or other expert, such accountant or other expert
(except as otherwise expressly provided in this Indenture) may be in the employ
of the Company or the Guarantor. Each such certificate issued by the Company or
the Guarantor, as the case may be, shall include the statements provided for in
Section 15.05 if and to the extent required by the provisions of such Section.

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Opinion of Counsel:

         The term "Opinion of Counsel" shall mean a written opinion of counsel,
who may be an employee of or counsel to the Company or the Guarantor, as
applicable. Each such opinion issued by the Company shall include the statements
provided for in Section 15.05 if and to the extent required by the provisions of
such Section.

Principal Property:

         The term "Principal Property" means (A) any manufacturing plant located
in the continental United States, or manufacturing equipment located in any such
manufacturing plant (together with the land on which such plant is erected and
fixtures comprising a part thereof), owned or leased on the first date on which
a Debenture is authenticated by the Trustee or thereafter acquired or leased by
the Guarantor or any Restricted Subsidiary, other than (i) any property which
the Board of Directors determines is not of material importance to the total
business conducted, or assets owned, by the Guarantor and its Subsidiaries, as
an entirety; or (ii) any portion of any such property which the Board of
Directors determines not to be of material importance to the use or operation of
such property; and (B) any Shares or Indebtedness issued by any Restricted
Subsidiary. "Manufacturing plant" does not include any plant owned or leased
jointly or in common with one or more Persons other than the Guarantor and its
Restricted Subsidiaries in which the aggregate interest of the Guarantor and its
Restricted Subsidiaries does not exceed fifty percent (50%). "Manufacturing
equipment" means manufacturing equipment in such manufacturing plants used
directly in the production of the Guarantor's or any Restricted Subsidiary's
products and does not include office equipment, computer equipment, rolling
stock and other equipment not directly used in the production of the Guarantor's
or any Restricted Subsidiary's products.

Restricted Subsidiary:

         The term "Restricted Subsidiary" means any Subsidiary substantially all
the property of which is located within the continental United States, other
than (i) a Subsidiary primarily engaged in financing, including, without
limitation, lending on the security of, purchasing or discounting (with or
without recourse) receivables, leases, obligations or other claims arising from
or in connection with the purchase or sale of products or services; (ii) a
Subsidiary primarily engaged in leasing or insurance; or (iii) a Subsidiary
primarily engaged in financing the Guarantor's or any Restricted Subsidiary's
operations outside the continental United States.

Sale and Leaseback Transaction:

         The term "Sale and Leaseback Transaction" means any arrangement with
any Person providing for the leasing by the Guarantor or any Restricted
Subsidiary of any Principal Property of the Guarantor or any Restricted
Subsidiary whether such Principal Property is now owned or hereafter acquired
(except for leases for a term of not more than three years and except for leases
between the Guarantor and a Restricted Subsidiary

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or between Restricted Subsidiaries and except for leases of property executed
prior to, at the time of, or within one year after the later of, the
acquisition, the completion of construction, including any improvements or
alterations on real property, or the commencement of commercial operation of
such property), which Principal Property has been or is to be sold or
transferred by the Guarantor or such Restricted Subsidiary to such Person;

Secured Indebtedness:

         The term "Secured Indebtedness" of any corporation shall mean
Indebtedness secured by any Lien upon property (including Shares or Indebtedness
issued by any Restricted Subsidiary) owned by the Guarantor or any Restricted
Subsidiary.

Shareholders' Equity:

         The term "Shareholders' Equity" shall mean the total assets calculated
from a consolidated balance sheet of the Guarantor, prepared in accordance with
generally accepted accounting principles, less total liabilities shown on such
balance sheet.

Subsidiary:

         The term "Subsidiary" means any corporation a majority of the Voting
Shares of which are at the time owned or controlled, directly or indirectly, by
the Guarantor or by one or more Subsidiaries and which is consolidated in the
Guarantor's latest consolidated financial statements filed with the Securities
and Exchange Commission or provided generally to the Guarantor's shareholders.

SECTION 2. The Indenture is hereby amended by adding to Section 1.01 the
following definitions in the correct alphabetical order:

Guarantee:

         The term "Guarantee" means any of the unconditional and unsubordinated
guarantees by the Guarantor of the due and punctual payment of principal of and
premium, if any, on the Debentures and certain other obligations of the Company
pursuant to this Indenture when and as the same shall become due and payable,
whether at the stated maturity, by acceleration, call for redemption, upon a
repurchase date or otherwise in accordance with the terms of the Debentures and
this Indenture.

Guarantor:

         The term "Guarantor" means Cooper Industries, Ltd., a Bermuda company,
until a successor replaces such party pursuant to Article Twelve of this
Indenture and, thereafter, shall mean such successor.

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SECTION 3. Section 5.05 of the Indenture is hereby amended and restated in its
entirety as follows:

         Section 5.05. Secured Indebtedness of the Guarantor and its Restricted
Subsidiaries. So long as any of the Debentures remains outstanding, the
Guarantor will not, and the Guarantor will not permit any of its Restricted
Subsidiaries to, create, assume, guarantee or incur any Secured Indebtedness of
the Guarantor or any Restricted Subsidiary without in any such case effectively
providing concurrently with the creation, assumption, guarantee or incurrence of
any such Secured Indebtedness that the Debentures (together with, if the
Guarantor shall so determine, any other indebtedness of or guarantee by the
Guarantor or such Restricted Subsidiary ranking equally with the Debentures and
then existing or thereafter created) shall be secured equally and ratably with
(or, at the option of the Guarantor, prior to) such Secured Indebtedness but
only for so long and during such time as (i) such Secured Indebtedness shall
exist and be secured by a Lien; and (ii) the aggregate of all Secured
Indebtedness not secured solely by Liens described in clauses (a) through (h) of
this Section 5.05 and all Attributable Debt outstanding pursuant to, and not
excluded from this calculation by, Section 5.06 exceeds 10% of Shareholders'
Equity; provided, however, that the foregoing restrictions shall not apply to
Secured Indebtedness secured by:

                  (a) Liens on property (including any Shares or Indebtedness)
         of any corporation existing at the time such corporation becomes a
         Restricted Subsidiary or arising thereafter pursuant to contractual
         commitments entered into prior to and not in contemplation of such
         corporation's becoming a Restricted Subsidiary;

                  (b) Liens on property (including any Shares or Indebtedness)
         existing at the time of acquisition of such property by the Guarantor
         or a Restricted Subsidiary, or Liens to secure the payment of all or
         any part of the purchase price of such property created upon the
         acquisition of such property by the Guarantor or a Restricted
         Subsidiary, or Liens to secure any Secured Indebtedness incurred by the
         Guarantor or a Restricted Subsidiary prior to, at the time of, or
         within one year after the later of the acquisition, the completion of
         construction (including any improvements, alterations or repairs to
         existing property) or the commencement of commercial operation of such
         property, which Secured Indebtedness is incurred for the purpose of
         financing all or any part of the purchase price thereof or construction
         or improvements, alterations or repairs thereon; provided, however,
         that in the case of any such acquisition, construction or improvement,
         alteration or repair, the Lien shall not apply to any property
         theretofore owned by the Guarantor or a Restricted Subsidiary, other
         than, in the case of any such construction or improvement, any
         theretofore unimproved real property or portion thereof on which the
         property so constructed, or the improvement, is located and any other
         property not then constituting a Principal Property;

                  (c) Liens securing Secured Indebtedness of any Restricted
         Subsidiary owing to the Guarantor or to another Restricted Subsidiary;

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                  (d) Liens on property of a corporation existing at the time
         such corporation is merged or consolidated with the Guarantor or a
         Restricted Subsidiary or at the time of a sale, lease or other
         disposition of the properties of a corporation as an entirety or
         substantially as an entirety to the Guarantor or a Restricted
         Subsidiary or arising thereafter pursuant to contractual commitments
         entered into by such corporation prior to and not in contemplation of
         such merger, consolidation, sale, lease or other disposition;

                  (e) Liens on property of the Guarantor or a Restricted
         Subsidiary in favor of the United States of America or any State
         thereof, or any department, agency or instrumentality or political
         subdivision of the United States of America or any State thereof, or in
         favor of any other country, or any political subdivision thereof, or in
         favor of any trustee or mortgagee acting on behalf, or for the benefit
         of, any of the foregoing, to secure partial, progress, advance or other
         payments pursuant to any contract or statute or to secure any
         Indebtedness incurred for the purpose of financing all or any part of
         the purchase price or the cost of construction of the property subject
         to such Liens (including without limitation Liens incurred in
         connection with pollution control, industrial revenue or similar
         financings) and any other Liens incurred or assumed in connection with
         the issuance of industrial revenue or private activity bonds the
         interest on which is exempt from Federal income taxation pursuant to
         Section 103(b) of the Internal Revenue Code of 1986, as amended;

                  (f) Liens existing on the first date on which a Debenture is
         authenticated by the Trustee;

                  (g) Liens on any property (including any Shares or
         Indebtedness) not constituting a Principal Property;

                  (h) any extension, renewal or replacement (or successive
         extensions, renewals or replacements) in whole or in part of any Lien
         referred to in the foregoing clauses (a) to (g) inclusive; provided,
         however, that the principal amount of Secured Indebtedness secured
         thereby shall not exceed the principal amount of Secured Indebtedness
         secured thereby at the time of such extension, renewal or replacement,
         and that such extension, renewal or replacement shall be limited to all
         or a part of the property which secured the Lien so extended, renewed
         or replaced (plus improvements, alterations and repairs on or to such
         property) and any other property not then constituting a Principal
         Property.

         Notwithstanding the foregoing provisions, the Guarantor and any one or
more Restricted Subsidiaries may create, assume, guarantee or incur Secured
Indebtedness which would otherwise be subject to the foregoing restrictions in
an aggregate amount which, together with (i) all other Secured Indebtedness of
the Guarantor and its Restricted Subsidiaries which would otherwise be subject
to the foregoing restrictions (not including Secured Indebtedness secured by
Liens permitted under clauses (a) through (h) above);

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and (ii) all Attributable Debt outstanding pursuant to, and not excluded from
this calculation by, Section 5.06, does not at the time exceed 10% of
Shareholders' Equity.

SECTION 4. Section 5.06 of the Indenture is hereby amended and restated in its
entirety as follows:

                  Section 5.06. Sale and Leaseback Transactions. The Guarantor
         will not, and nor will it permit any Restricted Subsidiary to, enter
         into any Sale and Leaseback Transaction unless (A) the sum of (i) the
         Attributable Debt outstanding pursuant to such Sale and Leaseback
         Transaction; (ii) all Attributable Debt outstanding pursuant to all
         other Sale and Leaseback Transactions entered into by the Guarantor and
         any Restricted Subsidiary after the date on which a Debenture is
         authenticated by the Trustee; and (iii) the aggregate of all Secured
         Indebtedness outstanding (computed without regard to the Secured
         Indebtedness excluded from the operation of Section 5.05 pursuant to
         clauses (a) through (h) thereof and further without regard to Secured
         Indebtedness of the Guarantor or any Restricted Subsidiary if the
         Debentures are secured equally and ratably with (or prior to) such
         Secured Indebtedness) does not exceed 10% of Shareholders' Equity; or
         (B) an amount equal to the greater of (i) the amount of the net
         proceeds to the Guarantor or the Restricted Subsidiary entering into
         such Sale and Leaseback Transaction; or (ii) the fair market value of
         such property, as determined by the Board of Directors (in the case of
         (i) or (ii), after repayment of, or otherwise taking into account, as
         the case may be, the amount of any Secured Indebtedness secured by a
         Lien encumbering such property which Secured Indebtedness existed
         immediately prior to such Sale and Leaseback Transaction) is applied to
         retirement of Funded Debt within one year after the consummation of
         such Sale and Leaseback Transaction; provided, however, the covenant
         contained in this Section 5.06 shall not apply to, and there shall be
         excluded from Attributable Debt in any computation under Section 5.05
         or this Section 5.06, Attributable Debt with respect to any Sale and
         Leaseback Transaction if:

                  (1) the Sale and Leaseback Transaction is entered into in
         connection with the issuance of industrial revenue or private activity
         bonds the interest on which is exempt from Federal income taxation
         pursuant to Section 103(b) of the Internal Revenue Code of 1986, as
         amended;

                  (2) the Guarantor or a Restricted Subsidiary applies an amount
         equal to the net proceeds (after repayment of any Secured Indebtedness
         secured by a Lien encumbering such Principal Property which Secured
         Indebtedness existed immediately before such Sale and Leaseback
         Transaction) of the sale or transfer of the Principal Property leased
         pursuant to such Sale and Leaseback Transaction to investment (whether
         for acquisition, improvement, repair, alteration or construction costs)
         in another Principal Property within one year prior or subsequent to
         such sale or transfer;

                  (3) such Sale and Leaseback Transaction was entered into by a
         corporation prior to the date on which such corporation became a
         Restricted Subsidiary or arises thereafter pursuant to contractual
         commitments entered into

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         by such corporation prior to and not in contemplation of such
         corporation's becoming a Restricted Subsidiary; or

                  (4) such Sale and Leaseback Transaction was entered into by a
         corporation prior to the time such corporation was merged or
         consolidated with the Guarantor or a Restricted Subsidiary or prior to
         the time of a sale, lease or other disposition of the properties of
         such corporation as an entirety or substantially as an entirety to the
         Guarantor or a Restricted Subsidiary or arises thereafter pursuant to
         contractual commitments entered into by such corporation prior to and
         not in contemplation of such merger, consolidation, sale, lease or
         other disposition.

SECTION 5. Section 5.07 of the Indenture is hereby amended and restated in its
entirety as follows:

         Section 5.07. Waiver of Covenants. The Guarantor may omit in any
particular instance to comply with any covenant or condition set forth in
Section 5.05 or 5.06 hereof or provided in a respective Certified Resolution
delivered to the Trustee pursuant to Section 2.02(A) hereof or in any indenture
supplemental hereto with respect to the Debentures of any series, if before or
after the time for such compliance the Holders of a majority in aggregate
principal amount of the Debentures of such series at the time Outstanding shall,
by action of such Debentures holders as provided in Section 9.01, either waive
such compliance in such instance or generally waive compliance with such
covenant or condition, but no such waiver shall extend to or affect such
covenant or condition except to the extent so expressly waived, and, until such
waiver shall become effective, the obligations of the Guarantor, and the duties
of the Trustee in respect of any such covenant or condition, shall remain in
full force and effect.

SECTION 6. Section 5.08 of the Indenture is hereby amended and restated in its
entirety as follows:

         Section 5.08. Certificate to Trustee. The Company and the Guarantor
will each deliver to the Trustee within 120 days after the end of each fiscal
year of the Guarantor (which on the date hereof ends on December 31) ending
after the date any series of Debentures is first issued hereunder, an Officers'
Certificate (which need not contain the statements provided for in Section
15.05), stating whether or not to the best knowledge of the respective signer
thereof (i) the Company is in default in the performance and observance of the
terms, provisions and conditions of Sections 5.01 or 5.02 and any other covenant
of the Company; and (ii) the Guarantor is in default in the performance and
observance of the terms, provisions and conditions of Sections 5.05 or 5.06 and
any other covenant of the Guarantor; provided in a Certified Resolution
delivered to the Trustee pursuant to Section 2.02(A) hereof or an indenture
supplemental hereto, and if the Company or Guarantor shall be in default,
respectively specifying all such defaults and the nature and status thereof of
which they may have knowledge; provided, however, neither the Company nor the
Guarantor shall be obligated to make any such statement with respect to any
term, provisions or conditions specified in this Section 5.08 if such

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term, provision or condition, as the case may be, is applicable only to a series
of Debentures none of the Debentures of which are outstanding or with respect to
which series the Company has been discharged pursuant to Article Thirteen.

SECTION 7. Section 6.03 of the Indenture is hereby amended and restated in its
entirety as follows:

         Section 6.03. Reports by the Company or the Guarantor. (a) The Company
or the Guarantor, as applicable, agrees to file with the Trustee, within thirty
days after the Company or the Guarantor, as applicable, is required to file the
same with the Securities and Exchange Commission, copies of the annual reports
and of the information, documents and other reports (or copies of such portions
of any of the foregoing as said Commission may from time to time by rules and
regulations prescribe) which the Company or the Guarantor, as applicable, may be
required to file with said Commission pursuant to Section 13 or Section 15(d) of
the Securities Exchange Act of 1934; or, if the Company or the Guarantor, as
applicable, is not required to file information, documents or reports pursuant
to either of such Sections, then to file with the Trustee and said Commission,
in accordance with rules and regulations prescribed from time to time by said
Commission, such of the supplementary and periodic information, documents and
reports which may be required pursuant to Section 13 of the Securities Exchange
Act of 1934 in respect of a security listed and registered on a national
securities exchange as may be prescribed from time to time in such rules and
regulations.

         (b) The Company or the Guarantor, as applicable, agrees to file with
the Trustee and the Securities and Exchange Commission, in accordance with the
rules and regulations prescribed from time to time by said Commission, such
additional information, documents and reports with respect to compliance by the
Company or the Guarantor, as applicable, with the conditions and covenants
provided for in this Indenture as may be required from time to time by such
rules and regulations.

         (c) The Guarantor agrees to transmit by mail to all holders of
Debentures, as the names and addresses of such holders appear upon the Debenture
register, within thirty days after the filing thereof with the Trustee, such
summaries of any information, documents and reports required to be filed by the
Company or the Guarantor, as applicable, pursuant to subsections (a) and (b) of
this Section 6.03 as may be required by rules and regulations prescribed from
time to time by the Securities and Exchange Commission.

SECTION 8. Article Twelve of the Indenture is hereby amended by the addition of
Sections 12.03 and 12.04 as follows:

         Section 12.03. Guarantor May Consolidate, Etc., Only on Certain Terms.
The Guarantor shall not consolidate with or merge into any other Person or
convey or transfer its properties and assets substantially as an entirety to any
Person, unless:

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                  (1) the Person formed by such consolidation or into which the
         Guarantor is merged or the Person which acquired by conveyance or
         transfer the properties and assets of the Guarantor substantially as an
         entirety shall expressly assume, by an indenture supplemental hereto,
         executed and delivered to the Trustee, in form satisfactory to the
         Trustee, the Guarantor's guarantee of the due and punctual payment of
         the principal of, premium, if any, and interest, if any, on all the
         Debentures and the Guarantor's guarantee of the performance or
         observance of every covenant of this Indenture on the part of the
         Company to be performed or observed;

                  (2) immediately after giving effect to such transaction, no
         Event of Default, and no event which, after notice or lapse of time, or
         both, would become an Event of Default, shall have occurred and be
         continuing; and

                  (3) the Guarantor has delivered to the Trustee an Officers'
         Certificate and an Opinion of Counsel each stating that such
         consolidation, merger, conveyance or transfer and such supplemental
         indenture comply with this Article Twelve and that all conditions
         precedent herein provided for relating to such transaction have been
         complied with; provided, however, the Opinion of Counsel shall not be
         required to include any opinion with respect to the condition set forth
         in paragraph (2) of this Section 12.03.

         Section 12.04. Successor Guarantor Substituted. Upon any consolidation
or merger, or any conveyance or transfer of the properties and assets of the
Guarantor substantially as an entirety in accordance with Section 12.03, the
successor corporation formed by such consolidation or into which the Guarantor
is merged or to which such conveyance or transfer is made shall succeed to, and
be substituted for, and may exercise every right and power of, the Guarantor
under this Indenture with the same effect as if such successor corporation had
been named as the Guarantor herein; and in the event of any such conveyance or
transfer, the Guarantor (which term shall for this purpose mean the Person named
as the "Guarantor" in Section 1.01, or any successor corporation which shall
have theretofore become such in the manner prescribed in Section 12.03), shall
be discharged from all liability under this Indenture and the Guarantee and in
respect of the Debentures and may be dissolved and liquidated.

SECTION 9. The Indenture is hereby amended by adding a new Article Sixteen as
follows:

                                 ARTICLE SIXTEEN

                                    Guarantee

         Section 16.01 Guarantee. Except as otherwise provided herein, the
Guarantor hereby fully and unconditionally guarantees to each Holder of a
Debenture authenticated and delivered by the Trustee, and to the Trustee on
behalf of such Holder, the due and punctual payment of the principal of,
premium, if any, and interest, if any, on the

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Debentures and all other obligations of the Company under this Indenture when
and as the same shall become due and payable, whether at the stated maturity, by
acceleration, call for redemption, upon a repurchase date or otherwise, in
accordance with the terms of the Debentures and of this Indenture. The Guarantor
hereby fully and unconditionally also guarantees to the Trustee the due and
punctual payment of all obligations of the Company to the Trustee under this
Indenture. In case of the failure of the Company punctually to make any such
payment, the Guarantor hereby agrees to cause such payment to be made punctually
when and as the same shall become due and payable, whether at the stated
maturity or by acceleration, call for redemption, upon a repurchase date or
otherwise, and as if such payment were made by the Company. The Guarantor agrees
that its obligations hereunder shall be absolute and unconditional, irrespective
of, and shall be unaffected by, the validity, regularity or enforceability of
the Debentures or this Indenture, the absence of any action to enforce the same
or any release (other than by operation of Article Thirteen), amendment, waiver
or indulgence granted to the Company or the Guarantor or any consent to
departure from any requirement of any other guarantee of all or any of the
Debentures or any other circumstances which might otherwise constitute a legal
or equitable discharge or defense of a surety or guarantor. The Guarantor hereby
waives the benefits of diligence, presentment, demand for payment, any
requirement that the Trustee or any of the Holders protect, secure, perfect or
insure any security interest in or other lien on any property subject thereto or
exhaust any right or take any action against the Company or any other Person or
any collateral, filing of claims with a court in the event of insolvency or
bankruptcy of the Company, any right to require a proceeding first against the
Company, protest or notice with respect to the Debentures or the Indebtedness
evidenced thereby and all demands whatsoever, and covenants that this Guarantee
will not be discharged in respect of the Debentures except by complete
performance of the obligations contained in the Debentures and in such
Guarantee. The Guarantor agrees that if, after the occurrence and during the
continuance of an Event of Default, the Trustee or any of the Holders are
prevented by applicable law from exercising their respective rights to
accelerate the maturity of the Debentures, to collect any principal, interest or
premium, if any, on the Debentures, or to enforce or exercise any other right or
remedy with respect to the Debentures, the Guarantor agrees to pay to the
Trustee for the account of the Holders, upon demand therefor, the amount that
would otherwise have been due and payable had such rights and remedies been
permitted to be exercised by the Trustee or any of the Holders.

         The Guarantor shall be subrogated to all rights of the Holders of the
Debentures upon which its Guarantee is endorsed against the Company in respect
of any amounts paid by the Guarantor on account of the Debentures pursuant to
the provisions of its Guarantee or this Indenture; provided, however, that the
Guarantor shall not be entitled to enforce or to receive any payment arising out
of, or based upon, such right of subrogation until the principal of, premium, if
any, and interest, if any, on all Debentures issued hereunder shall have been
paid in full.

         This Guarantee shall remain in full force and effect and continue to be
effective should any petition be filed by or against the Company for liquidation
or reorganization, should the Company become insolvent or make an assignment for
the benefit of creditors

                                      -11-
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or should a receiver or trustee be appointed for all or any part of the
Company's assets, and shall, to the fullest extent permitted by law, continue to
be effective or be reinstated, as the case may be, if at any time payment and
performance of the Securities, is, pursuant to applicable law, rescinded or
reduced in amount, or must otherwise be restored or returned by any holder of
the Debentures, whether as a "voidable preference," "fraudulent transfer," or
otherwise, all as though such payment or performance had not been made. In the
event that any payment, or any part thereof, is rescinded, reduced, restored or
returned, the Debentures shall, to the fullest extent permitted by law, be
reinstated and deemed reduced only by such amount paid and not so rescinded,
reduced, restored or returned.

         Any term or provision of this Guarantee to the contrary
notwithstanding, the aggregate amount of the obligations guaranteed hereunder
shall be reduced to the extent necessary to prevent this Guarantee from
violating or becoming voidable under applicable law relating to fraudulent
conveyance or fraudulent transfer or similar laws affecting the rights of
creditors generally.

         Section 16.02 Release of Guarantee. Notwithstanding anything in this
Article Sixteen to the contrary, concurrently with the payment in full of (i)
the principal of, premium, if any, and interest, if any, on the Debentures; and
(ii) all other obligations of the Company under this Indenture, the Guarantor
shall be released from and relieved of its obligations under this Article
Sixteen. Upon the delivery by the Company to the Trustee of an Officers'
Certificate and an Opinion of Counsel to the effect that the transaction giving
rise to the release of this Guarantee was made by the Company in accordance with
the provisions of this Indenture and the Debentures, the Trustee shall execute
any documents reasonably required in order to evidence the release of the
Guarantor from its obligations under this Guarantee. If any of the obligations
to pay the principal of, premium, if any, and interest, if any, on the
Debentures and all other obligations of the Company are revived and reinstated
after the termination of this Guarantee, then all of the obligations of the
Guarantor under this Guarantee shall be revived and reinstated as if this
Guarantee had not been terminated until such time as the principal of, premium,
if any, and interest, if any, on the Debentures and all other obligations of the
Company under the Indenture are paid in full, and the Guarantor shall enter into
an amendment to this Guarantee, reasonably satisfactory to the Trustee,
evidencing such revival and reinstatement.

SECTION 10. This First Supplemental Indenture shall become effective as of the
Merger Date. In the event that the Merger does not occur or the Company
otherwise notifies the Trustee in writing that the Merger will not occur, this
First Supplemental Indenture shall automatically become null and void and
Company and Trustee shall continue to comply with the original Indenture. On or
promptly following the Merger Date, the Company shall furnish to the Trustee an
Officer's Certificate certifying that the Merger has occurred and that this
First Supplemental Indenture has become effective.

                                      -12-
<PAGE>

SECTION 11. The Indenture, as supplemented and amended, is in all respects
ratified and confirmed, and the Indenture and all indentures supplemental
thereto shall be read, taken and construed as one and the same instrument.

SECTION 12. If and to the extent any provision hereof limits, qualifies or
conflicts with another provision hereof which is required to be included in this
First Supplemental Indenture by any provision of the Trust Indenture Act of
1939, such required provision shall control.

SECTION 13. In case any provision in this First Supplemental Indenture or in the
Debentures of any series heretofore issued shall be invalid, illegal or
unenforceable, the validity, legality and enforceability of the remaining
provisions (or of the other series of Debentures) shall not in any way be
affected or impaired thereby.

SECTION 14. This First Supplemental Indenture shall be deemed to be a contract
made under the laws of the State of New York, and for all purposes shall be
construed in accordance with the laws of the said State.

SECTION 15. Capitalized terms used in this First Supplemental Indenture that are
not otherwise defined herein that are defined in the Indenture shall remain as
set forth therein.

SECTION 16. This First Supplemental Indenture may be executed in any number of
counterparts, each of which shall be an original but such counterparts shall
together constitute but one and the same instrument.

SECTION 17. The Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this First Supplemental Indenture
or for or in respect of the recitals contained herein, all of which are made
solely by the Company and the Guarantor.

                                      -13-
<PAGE>

IN WITNESS WHEREOF, the parties have caused this First Supplemental Indenture to
be duly executed and their respective corporate seals to be hereunto affixed and
attested, as of the Execution Date.

COMPANY:                                 GUARANTOR:

COOPER INDUSTRIES, INC.                  COOPER INDUSTRIES, LTD.

By: /s/ Alan J. Hill                     By: /s/ Alan J. Hill
    --------------------------------         -----------------------------------
Name: Alan J. Hill                       Name: Alan J. Hill
      ------------------------------           ---------------------------------
Title: Vice President & Treasuer         Title: Vice President & Treasurer
       -----------------------------            --------------------------------

                                         By: /s/ D. Bradley McWilliams
                                             -----------------------------------
                                         Name: D. Bradley McWilliams
                                               ---------------------------------
                                         Title: Senior Vice President &
                                                --------------------------------
                                                Chief Financial Officer
                                                --------------------------------

TRUSTEE:

JPMORGAN CHASE BANK

By: /s/ Philbert G. Jones
    --------------------------------
Name: Philbert G. Jones
      ------------------------------
Title: Assistant Vice President
       -----------------------------<PAGE>

                                                                     EXHIBIT 4.4

                             COOPER INDUSTRIES, INC.
                             COOPER INDUSTRIES, LTD.
                                       AND
                              JP MORGAN CHASE BANK
                                   AS TRUSTEE

                          SECOND SUPPLEMENTAL INDENTURE
                            DATED AS OF JUNE 21, 2002

                                   DEBENTURES
              SUPPLEMENT TO INDENTURE DATED AS OF JANUARY 15, 1990
                      AS AMENDED BY THE FIRST SUPPLEMENTAL
                          INDENTURE DATED MAY 15, 2002

<PAGE>

This SECOND SUPPLEMENTAL INDENTURE, dated as of June 21, 2002 ("Supplemental
Indenture"), is made and entered into between Cooper Industries, Inc., a
corporation organized and existing under the laws of the State of Ohio, having
its principal office at 600 Travis, Suite 5800, Houston, Texas 77002 (the
"Company"), Cooper Industries, Ltd., a Bermuda company, having its principal
office at 600 Travis, Suite 5800, Houston, Texas 77002 (the "Guarantor") and JP
Morgan Chase Bank, a New York banking corporation, as Trustee (the "Trustee").

WHEREAS, the Company entered into an Indenture dated as of January 15, 1990 (the
"Indenture"), with The Chase Manhattan Bank (National Association), for the
purpose of issuing its debentures, notes, bonds or other evidences of
indebtedness (the "Debentures") in one or more series, unlimited as to aggregate
principal amount and bearing such rates of interest, if any, maturing at such
time or times and having such other designations as shall be fixed in accordance
with the Indenture; and

WHEREAS, the Company is a wholly owned, indirect subsidiary and a Restricted
Subsidiary of the Guarantor and, pursuant to the First Supplemental Indenture
among the parties hereto dated May 15, 2002, the Guarantor has guaranteed to
each holder of a Debenture the payment of the principal of, premium, if any, and
interest, if any, on the Debentures and all other obligations of the Company
under the Indenture; and

WHEREAS, the Trustee is the successor by merger to The Chase Manhattan Bank
(National Association) and has succeeded to all interests of such national
association under the Indenture; and

WHEREAS, the Company proposes to issue a series of Debentures in the aggregate
principal amount of up to three hundred million dollars ($300,000,000) (the
"5.25% Senior Notes Due 2007") and to modify certain terms of the Indenture
solely with respect to the 5.25% Senior Notes Due 2007 and any Debentures that
the Company issues subsequent to the 5.25% Senior Notes Due 2007 (the
"Subsequent Debentures"); and

WHEREAS, the entry into this Supplemental Indenture by the parties hereto is in
all respects permitted by the provisions of Section 11.01 of the Indenture; and

WHEREAS, all corporate and other action necessary to make this Supplemental
Indenture a valid and binding agreement of the Company and the Guarantor in
accordance with its terms have been done.

NOW, THEREFORE, in consideration of the foregoing premises and the acceptance
and purchase of the 5.25% Senior Notes Due 2007 by the holders thereof, it is
mutually covenanted and agreed as follows:

SECTION 1. The Indenture is hereby amended, solely with respect to the 5.25%
Senior Notes Due 2007 and not with respect to any Subsequent Debentures, by the
addition of Section 4.04 as follows:

                                       1
<PAGE>

         Section 4.04. Optional Redemption For Tax Reasons. The Company shall be
entitled to redeem all, but not part, of the Debentures if as a result of any
change in or amendment to the laws, regulations or rulings of the Relevant Tax
Jurisdiction or any change in the official application or interpretation of such
laws, regulations or rulings, or any change in the official application or
interpretation of, or any execution of or amendment to, any treaty or treaties
affecting taxation to which such Relevant Tax Jurisdiction is a party (a "Change
in Tax Law"), the Payor is or would be required on the occasion of the next
payment of principal or interest in respect of the Debentures to pay Additional
Amounts pursuant to Section 5.09 and the payment of such Additional Amounts
cannot be avoided by the use of any reasonable measures available to the Payor.
The Change in Tax Law must become effective on or after the original issue date
with respect to the Debentures. Notwithstanding anything to the contrary
contained in this Article IV, the Company must (i) deliver to the trustee at
least 30 days before the redemption date an opinion of independent legal counsel
of recognized standing to the effect that the Payor has or will become obligated
to pay Additional Amounts as a result of such Change in Tax Law and (ii) provide
the holders with notice of the intended redemption at least 30 days and no more
than 60 days before the redemption date. The redemption price will equal the
principal amount of the Debentures plus accrued interest to the redemption date.

SECTION 2. Section 5.05 of the Indenture is hereby amended, solely with respect
to the 5.25% Senior Notes Due 2007 and any Subsequent Debentures, by deleting
the phrase " . . .10% of Shareholders' Equity" in the first and the last
sentences of Section 5.05 and substituting therefor the phrase " . . .15% of
Consolidated Tangible Assets."

SECTION 3. Section 5.06 of the Indenture is hereby amended, solely with respect
to the 5.25% Senior Notes Due 2007 and any Subsequent Debentures, by deleting
the phrase " . . .10% of Shareholders' Equity" in the first sentence of Section
5.06 and substituting therefor the phrase " . . .15% of Consolidated Tangible
Assets."

SECTION 4. The Indenture is hereby amended, solely with respect to the 5.25%
Senior Notes Due 2007 and not with respect to any Subsequent Debentures, by
adding to Section 1.01 thereof the following definitions in correct alphabetical
order:

Additional Amounts:

         The term "Additional Amounts" shall have the meaning specified in
Section 5.09.

Change in Tax Law:

         The term "Change in Tax Law" shall have the meaning specified in
Section 4.04.

Payor:

         The term "Payor" shall have the meaning specified in Section 5.09.

                                       2
<PAGE>

Relevant Tax Jurisdiction:

         The term "Relevant Tax Jurisdiction" shall have the meaning specified
in Section 5.09.

SECTION 5. The Indenture is hereby amended, solely with respect to the 5.25%
Senior Notes Due 2007 and any Subsequent Debentures, by adding to Section 1.01
thereof the following definitions in correct alphabetical order:

Consolidated Tangible Assets:

         The term "Consolidated Tangible Assets" means, as of any date, the
total amount of assets of the Guarantor and its Subsidiaries on a consolidated
basis at the end of the fiscal quarter immediately preceding that date, as
determined under generally accepted accounting principles, less: (a) Intangible
Assets and (b) appropriate adjustments on account of minority interests of other
persons holding equity investments in Subsidiaries, in the case of each of
clauses (a) and (b) above as reflected on the consolidated balance sheet of the
Guarantor and its Subsidiaries as of the end of the fiscal quarter immediately
preceding that date.

Intangible Assets:

         The term "Intangible Assets" means all goodwill, patents, trademarks,
service marks, trade names, copyrights, and all other items that would be
treated as intangibles on the consolidated balance sheet of the Company and its
Subsidiaries prepared under generally accepted accounting principles.

Judgment Currency:

         The term "Judgment Currency" shall have the meaning specified in
Section 15.11.

Required Currency:

         The term "Required Currency" shall have the meaning specified in
Section 15.11.

SECTION 6. The Indenture is hereby amended, solely with respect to the 5.25%
Senior Notes Due 2007 and not with respect to any Subsequent Debentures, by the
addition of Section 5.09 as follows:

         Section 5.09. Payment of Additional Amounts. If any taxes, assessments
or other governmental charges are imposed by the jurisdiction, other than the
United States, where the Guarantor or a successor (a "Payor") is organized or
otherwise considered to be a resident for tax purposes, any jurisdiction, other
than the United States, from or through which the Payor makes a payment on the
Debentures, or, in each case, any political organization or governmental
authority thereof or therein having the power to tax (the "Relevant Tax
Jurisdiction") in respect of any payments under the Debentures, the Payor

                                       3
<PAGE>

shall pay to each holder of a Debenture, to the extent it may lawfully do so,
such additional amounts ("Additional Amounts") as may be necessary in order that
the net amounts paid to such holder will be not less than the amount specified
in such Debenture to which such holder is entitled; provided, however, the Payor
shall not be required to make any payment of Additional Amounts for or on
account of:

         (a) any tax, assessment or other governmental charge which would not
         have been imposed but for (i) the existence of any present or former
         connection between such holder (or between a fiduciary, settlor,
         beneficiary, member or shareholder of, or possessor of a power over,
         such holder, if such holder is an estate, trust, partnership, limited
         liability company or corporation) and the Relevant Tax Jurisdiction
         including, without limitation, such holder (or such fiduciary, settlor,
         beneficiary, member, shareholder or possessor) being or having been a
         citizen or resident thereof or being or having been present or engaged
         in trade or business therein or having or having had a permanent
         establishment therein or (ii) the presentation of a Debenture (where
         presentation is required) for payment on a date more than 30 days after
         (x) the date on which such payment became due and payable or (y) the
         date on which payment thereof is duly provided for, whichever occurs
         later;

         (b) any estate, inheritance, gift, sales, transfer, personal property
         or similar tax, assessment or other governmental charge;

         (c) any tax, assessment or other governmental charge which is payable
         otherwise than by withholding from payment of (or in respect of)
         principal of, premium, if any, or any interest on, the Debentures;

         (d) any tax, assessment or other governmental charge that is imposed or
         withheld by reason of the failure by the holder or the beneficial owner
         of the Debenture to comply with a request of the Payor addressed to the
         holder to provide information, documents or other evidence concerning
         the nationality, residence or identity of the holder or such beneficial
         owner which is required by a statute, treaty, regulation or
         administrative practice of the taxing jurisdiction as a precondition to
         exemption from all or part of such tax, assessment or other
         governmental charge; or

         (e) any combination of the above;

nor will Additional Amounts be paid with respect to any payment of the principal
of, or any premium or interest on, any Debenture to any holder who is a
fiduciary or partnership or limited liability company or other than the sole
beneficial owner of such payment to the extent such payment would be required by
the laws of the Relevant Tax Jurisdiction to be included in the income for tax
purposes of a beneficiary or settlor with respect to such fiduciary or a member
of such partnership, limited liability company or beneficial owner who would not
have been entitled to such Additional Amounts had it been the holder of such
Debenture.

                                       4
<PAGE>

The Payor shall provide the Trustee with the official acknowledgment of the
relevant tax authority (or, if such acknowledgment is not available, a certified
copy thereof) evidencing the payment of the withholding taxes by the Payor.
Copies of such documentation shall be made available to the holders of the
Debentures or the paying agent, as applicable, upon request therefor.

SECTION 7. The Indenture is hereby amended, solely with respect to the 5.25%
Senior Notes Due 2007 and any Subsequent Debentures, by adding at the end of
Section 7.01(f) thereof the word "or" and by adding to Section 7.01 the
following subsections:

         (g) failure on the part of the Guarantor duly to observe or perform any
      other of the covenants or agreements on the part of the Guarantor in
      respect of the Debentures of such series, or in this Indenture contained
      with respect to such series, for a period of ninety days after the date on
      which written notice of such failure, requiring the Guarantor to remedy
      the same, shall have been given to the Guarantor by the Trustee, or to the
      Guarantor and the Trustee by the holders of at least twenty-five percent
      in aggregate principal amount of the Debentures of such series at the time
      outstanding; or

         (h) entry of a decree or order for relief in respect of the Guarantor
      by a court having jurisdiction in the premises in an involuntary case
      under any applicable bankruptcy, insolvency or other similar law now or
      hereafter in effect, or appointing a receiver, liquidator, assignee,
      custodian, trustee, sequestrator or other similar official of the
      Guarantor or for any substantial part of its property, or ordering the
      winding-up or liquidation of its affairs and the continuance of such
      decree or order unstayed and in effect for a period of ninety consecutive
      days; or

         (i) commencement by the Guarantor of a voluntary case under any
      applicable bankruptcy, insolvency or other similar law now or hereafter in
      effect, or consent by the Guarantor to the entry of an order for relief in
      an involuntary case under any such law, or consent by the Guarantor to the
      appointment of or taking possession by a receiver, liquidator, assignee,
      trustee, custodian, sequestrator or other similar official of the
      Guarantor or for any substantial part of its property, or any general
      assignment by the Guarantor for the benefit of creditors, or failure by
      the Guarantor generally to pay its debts as they become due, or the taking
      by the Guarantor of any corporate action in furtherance of any of the
      foregoing;

                                       5
<PAGE>

SECTION 8. Article Eleven of the Indenture is hereby amended and restated in its
entirety as follows:

                                 ARTICLE ELEVEN

                             SUPPLEMENTAL INDENTURES

         Section 11.01. Supplemental Indentures without Consent of
Debentureholders. The Company and the Guarantor each when authorized by the
resolutions of the Board of Directors, and the Trustee may from time to time and
at any time enter into an indenture or indentures supplemental hereto for one or
more of the following purposes:

                  (a) to evidence the succession of another corporation to the
         Company or the Guarantor or successive successions, and the assumption
         by the successor corporation of the covenants, agreements and
         obligations of the Company or the Guarantor, as the case may be,
         pursuant to Article Twelve hereof;

                  (b) to add to the covenants of the Company or the Guarantor
         such further Events of Default, covenants, restrictions or conditions,
         for the protection of the holders of the Debentures of any series as
         the Board of Directors of the Company or the Guarantor shall consider
         to be for the protection of the holders of Debentures of such series,
         and to make the occurrence or the occurrence and continuance of an
         Event of Default or a default in any of such additional covenants,
         restrictions or conditions a default or an Event of Default permitting
         the enforcement of all or any of the several remedies provided in this
         Indenture as herein set forth; provided, however, that in respect of
         any such additional Event of Default, covenant, restriction or
         condition such supplemental indenture may provide for a particular
         period of grace after default (which period may be shorter or longer
         than that allowed in the case of other defaults) or may provide for an
         immediate enforcement upon such default or Event of Default or may
         limit the remedies available to the Trustee upon such default or Event
         of Default;

                  (c) to cure any ambiguity or to correct or supplement any
         provision contained herein or in any supplemental indenture or
         Debentures of a series which may be defective or inconsistent with any
         other provision contained herein or in any supplemental indenture or
         Debentures of a series, or to make such other provisions in regard to
         matters or questions arising under this Indenture or any supplemental
         indenture or Debentures of a series which shall not adversely affect
         the interests of the holders of the Debentures;

                  (d) to provide for the issuance of a particular series of
         Debentures in bearer form with or without interest coupons;

                  (e) to provide for beneficial ownership of all or a portion of
         a particular series of Debentures to be evidenced by electronic
         book-entry (i) at a Depositary, (ii) on the records of the Company, its
         agent or a third party other than a Depositary, with the Company, its
         agent or a third party holding a certificate or

                                       6
<PAGE>

         certificates representing such Debentures or portion thereof, or (iii)
         any combination of (i) and (ii); provision may be made that beneficial
         owners shall not have the right to obtain certificates for such
         Debentures or portion thereof;

                  (f) at the Company's option, to set forth some or all the
         terms of the Debentures of a particular series in lieu of setting forth
         such terms in a Certified Resolution pursuant to Section 2.02;

                  (g) to provide for the appointment of a successor Trustee with
         respect to one or more series of Debentures pursuant to Section 8.11;
         or

                  (h) to provide for an authenticating agent for the Trustee.

         The Trustee is hereby authorized to join with the Company and the
Guarantor in the execution of any such supplemental indenture, to make any
further appropriate agreements and stipulations which may be therein contained
and to accept the conveyance, transfer and assignment of any property
thereunder, but the Trustee shall not be obligated to, but may in its
discretion, enter into any such supplemental indenture which affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise.

         Any supplemental indenture authorized by the provisions of this Section
11.01 may be executed by the Company, the Guarantor and the Trustee without the
consent of the holders of any of the Debentures at the time outstanding,
notwithstanding any of the provisions of Section 11.02.

         SECTION 11.02. Supplemental Indentures with Consent of
Debentureholders. With the consent (evidenced as provided in Section 9.01) of
the holders of not less than a majority in aggregate principal amount of the
Debentures at the time outstanding of each series to be affected, the Company
and the Guarantor each when authorized by a resolution of its Board of Directors
and the Trustee may from time to time and at any time enter into an indenture or
indentures supplemental hereto (which shall conform to the provisions of the
Trust Indenture Act of 1939 as in force at the date of the execution thereon)
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or of any supplemental
indenture or Debentures of a series or of modifying in any manner the rights of
the holders of the Debentures of such series to be affected; provided, however,
that no such supplemental indenture shall (i) change the fixed maturity (which
term shall not include payments due pursuant to any sinking, purchase or
analogous fund) of any Debentures or reduce the principal amount thereof, or
reduce the rate or extend the time of payment of interest thereon, or reduce any
premium payable upon the redemption thereof, without the consent of the holder
of each Debenture to affected or (ii) reduce the aforesaid percentage of
Debentures of any series, the consent of the holders of which is required for
any such supplemental indenture, without the consent of the holders of all
Debentures of such series then outstanding.

                                       7
<PAGE>

         Upon the request of the Company and the Guarantor, accompanied by a
copy of the resolutions of each of their respective Boards of Directors
certified by their respective Secretaries or any Assistant Secretaries
authorizing the execution of any such supplemental indentures, and upon the
filing with the Trustee of evidence of the consent of Debentureholders as
aforesaid, the Trustee shall join with the Company and the Guarantor in the
execution of such supplemental indenture unless such supplemental indenture
affects the Trustee's own rights, duties or immunities under this Indenture or
otherwise, in which case the Trustee may in its discretion, but shall not be
obligated to, enter into such supplemental indenture.

         It shall not be necessary for the consent of the Debentureholders under
this Section 11.02 to approve the particular form of any proposed supplemental
Indenture, but it shall be sufficient if such consent shall approve the
substance thereof.

         SECTION 11.03. Effect of Supplemental Indentures. Any supplemental
indenture executed pursuant to the provision of this Article Eleven shall comply
with the Trust Indenture Act of 1939, as then in effect. Upon the execution of
any supplemental indenture pursuant to the provisions of this Article Eleven,
this Indenture shall be and be deemed to be modified and amended in accordance
therewith and the respective rights, limitation of rights, obligations, duties
and immunities under this Indenture of the Trustee, the Company, the Guarantor
and the holders of all of the Debentures or of the Debentures of any series
affected, as the case may be, shall thereafter be determined, exercised and
enforced hereunder subject in all respects to such modifications and amendments
and all the terms and conditions of any such supplemental indenture shall be and
be deemed to be part of the terms and conditions of this Indenture for any and
all purposes.

         SECTION 11.04 Notation on Debentures. Debentures authenticated and
delivered after the execution of any supplemental indenture pursuant to the
provisions of this Article Eleven may, but need not, bear a notation in form
approved by the Trustee as to any matter provided for in such supplemental
indenture. If the Company, the Guarantor or the Trustee shall so determine, new
Debentures so modified as to conform, in the opinion of the Trustee and the
Board of Directors, to any modification of this Indenture contained in any such
supplemental indenture may be prepared and executed by the Company and the
Guarantor, authenticated by the Trustee and delivered in exchange for the
Debentures then outstanding.

         SECTION 11.05. Evidence of Compliance of Supplemental Indenture to Be
Furnished Trustee. The Trustee, subject to the provisions of Sections 8.01 and
8.02, may receive an Officers' Certificate and an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant hereto
complies with the requirements of this Article Eleven.

SECTION 9. The Indenture is hereby amended, solely with respect to the 5.25%
Senior Notes Due 2007 and any Subsequent Debentures, by the addition of Section
15.11 as follows:

                                       8
<PAGE>

         Section 15.11.  Judgment Currency; Service of Process.

         (a) Each of the Company and the Guarantor agrees, to the fullest extent
that it may effectively do so under applicable law, that (i) if for the purpose
of obtaining judgment in any court it is necessary to convert the sum due in
respect of the principal of or interest on the Debentures of any series (the
"Required Currency") into a currency in which a judgment will be rendered (the
"Judgment Currency"), the rate of exchange used shall be the rate at which in
accordance with normal banking procedures the Trustee for such Debentures could
purchase in The City of New York the Required Currency with the Judgment
Currency at 10:00 A.M. New York City time, or as close to such time as is
reasonably practicable, on the day on which final unappealable judgment is
entered, unless such day is not a Banking Day, then, to the extent permitted by
applicable law, the rate of exchange used shall be the rate at which in
accordance with normal banking procedures such Trustee could purchase in The
City of New York the Required Currency with the Judgment Currency at 10:00 A.M.
New York City time, or as close to such time as is reasonably practicable, on
the Banking Day preceding the day on which final unappealable judgment is
entered and (ii) its obligations under this Indenture to make payments in the
Required Currency (x) shall not be discharged or satisfied by any tender, or any
recovery pursuant to any judgment (whether or not entered in accordance with
this subsection (a)), in any currency other than the Required Currency, except
to the extent that such tender or recovery shall result in the actual receipt,
by the payee, of the full amount of the Required Currency expressed to be
payable in respect of such payments, (y) shall be enforceable as an alternative
or additional cause of action for the purpose of recovering in the Required
Currency the amount, if any, by which such actual receipt shall fall short of
the full amount of the Required Currency so expressed to be payable and (z)
shall not be affected by judgment being obtained for any other sum due under
this Indenture. For purposes of the foregoing, "Banking Day" means any day
except a Saturday, Sunday or a legal holiday in The City of New York or a day on
which banking institutions in The City of New York are authorized or required by
law or executive order to close.

         (b) The Guarantor hereby irrevocably designates and appoints the
Company, 600 Travis, Suite 5800, Houston, Texas as its authorized agent with
respect to any suit, action or proceeding based on or arising out of or relating
to this Indenture or any Debentures or the Guarantee, it being understood that
the designation and appointment of the Company as such authorized agent shall
become effective immediately without any further action on the part of the
Guarantor. The Guarantor further agrees that service of process upon the Company
and written notice of said service to the Guarantor mailed by prepaid registered
first class mail or delivered to the Company at its principal office, shall be
deemed in every respect effective service of process upon the Guarantor, as
applicable, in any such suit, action or proceeding.

SECTION 10. The Indenture, as supplemented and amended by this Supplemental
Indenture and all other supplemental indentures thereto, is in all respects
ratified and confirmed, and the Indenture, the Supplemental Indenture and all
indentures supplemental thereto shall be read, taken and construed as one and
the same instrument;

                                       9
<PAGE>

provided, however, that this Supplemental Indenture shall apply only to the
5.25% Senior Notes Due 2007 and any Subsequent Debentures.

SECTION 11. If and to the extent any provision hereof limits, qualifies or
conflicts with another provision hereof which is required to be included in this
Supplemental Indenture by any provision of the Trust Indenture Act of 1939, such
required provision shall control.

SECTION 12. In case any provision in this Supplemental Indenture or in the
Debentures of any series shall be invalid, illegal or unenforceable, the
validity, legality and enforceability of the remaining provisions (or of the
other series of Debentures) shall not in any way be affected or impaired
thereby.

SECTION 13. If the provisions of the 5.25% Senior Notes Due 2007 or any series
of the Subsequent Debentures issued hereunder are inconsistent or conflict with
the provisions of this Supplemental Indenture, the provisions of the 5.25%
Senior Notes Due 2007 or the Subsequent Debentures of such series shall be
controlling with respect to such series.

SECTION 14. This Supplemental Indenture and each Debenture of any series shall
be deemed to be a contract made under the laws of the State of New York, and for
all purposes shall be construed in accordance with the laws of the said State.

SECTION 15. Capitalized terms used in this Supplemental Indenture that are not
otherwise defined herein that are defined in the Indenture shall remain as set
forth therein.

SECTION 16. This Supplemental Indenture may be executed in any number of
counterparts, each of which shall be an original but such counterparts shall
together constitute but one and the same instrument.

SECTION 17. The Trustee shall not be responsible in any manner whatsoever for or
in respect of the validity or sufficiency of this Second Supplemental Indenture
or for or in respect of the recitals contained herein, all of which are made
solely by the Company and the Guarantor.

                                       10
<PAGE>

IN WITNESS WHEREOF, the parties have caused this Second Supplemental Indenture
to be duly executed and their respective corporate seals to be hereunto affixed
and attested, as of the day and year first above written.

COMPANY:

COOPER INDUSTRIES, INC.                    JP MORGAN CHASE BANK,
                                           AS TRUSTEE

By: /s/ Alan J. Hill                       By: /s/ Philbert G. Jones
    -------------------------------            ---------------------------------
Name: Alan J. Hill                         Name: Philbert G. Jones
Title: Vice President and Treasurer        Title:  Assistant Vice President

GUARANTOR:

COOPER INDUSTRIES, LTD.

By: /s/ D. Bradley McWilliams
    -------------------------------
Name: D. Bradley McWilliams
Title: Senior Vice President and Chief Financial Officer

By: /s/ Alan J. Hill
    -------------------------------
Name: Alan J. Hill
Title: Vice President and Treasurer

                                       11

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