UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 8-K

Current Report
Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

Date of Report (Date of earliest event reported):  February 20, 2013

SPX CORPORATION

(Exact name of registrant as specified in its charter)

13320 Ballantyne Corporate Place
Charlotte, North Carolina 28277

(Address of principal executive offices) (Zip Code)

Registrant’s telephone number, including area code  (704) 752-4400

NOT APPLICABLE

(Former name or former address if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the obligation of the registrant under any of the following provisions:

o            Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o            Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o            Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o            Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 5.03.  Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year

On February 20, 2013, the Board of Directors of SPX Corporation (the “Company”) amended and restated the Company’s By-Laws to change the address of its principal office.

A copy of the By-Laws as amended and restated is filed as Exhibit 3.1 to this Current Report on Form 8-K and is incorporated herein by reference.

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Item 9.01.                                        Financial Statements and Exhibits.

The following exhibits are filed herewith.

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SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

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EXHIBIT INDEX

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