<DOCUMENT>
<TYPE>EX-12.1
<SEQUENCE>3
<FILENAME>dex121.txt
<DESCRIPTION>COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
<TEXT>
<PAGE>

                        SPX CORPORATION AND SUBSIDIARIES
                COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

     The following table sets forth the ratio of earnings to fixed charges
      for SPX for the years ended December 31, 1996, 1997, 1998, 1999, and
    2000 and for the nine months ended September 30, 2000 and September 30,
        2001. All dollar amounts presented in this exhibit are stated in
                            millions, except ratios.

<TABLE>
<CAPTION>
                                                                                                              Nine months ended
                                                                   Year ended December 31                        September 30,
                                            ------------------------------------------------------------  -----------------------
                                             1996 (5)  1997 (6)      1998 (7)     1999 (8)    2000 (9)     2000 (10)   2001 (11)
                                            --------- ----------   -----------   ----------  ----------   ----------- -----------
<S>                                         <C>        <C>           <C>          <C>         <C>          <C>          <C>
Ratio of earnings to fixed charges (1)(2)        5.7        7.7         (0.3)          1.8         3.0          4.3          2.9

Earnings:
Pretax income from continuing operations    $  133.4   $  131.0      $ (41.7)     $  107.5    $  198.3     $  252.6     $  192.6
Fixed Charges                                   28.3       19.6         51.0         126.0       101.8         75.7         99.1
JV Earnings, net of distributions                  -          -        (24.7)         (3.2)        0.3         (0.8)        (0.3)
                                            --------   --------      -------      --------    --------     --------     --------
Total Earnings                              $  161.7   $  150.6      $ (15.4)     $  230.3    $  300.4     $  327.5     $  291.4

Fixed Charges:
Interest (3)                                $   21.5   $   13.2      $  45.1      $  117.6    $   95.0     $   70.6     $   94.6
Rent expense interest factor (4)                 6.8        6.4          5.9           8.4         6.8          5.1          4.5
                                            --------   --------      -------      --------    --------     --------     --------
Total fixed charges                         $   28.3   $   19.6      $  51.0      $  126.0    $  101.8     $   75.7     $   99.1
</TABLE>

    (1)   For the purpose of determining the ratio of earnings to fixed charges,
          earnings consists of income from continuing operations and fixed
          charges.

     (2)  On October 6, 1998 (the "Merger Date"), General Signal Corporation
          ("GSX") was merged into a subsidiary of SPX Corporation (the
          "Merger"). The Merger was accounted for as a reverse acquisition
          whereby GSX was treated as the acquirer and SPX as the target.

     (3)  Interest expense consists of net interest expense on indebtedness and
          amortization of deferred financing expenses.

     (4)  One-third of net rental expense is deemed representative of the
          interest factor.

          EARNINGS FOR YEARS ENDED DECEMBER 31, 1996, 1997, 1998, 1999 AND 2000
          AND THE NINE MONTHS ENDED SEPTEMBER 30, 2000 AND 2001 INCLUDE THE
          FOLLOWING SPECIAL CHARGES AND OTHER UNUSUAL ITEMS:

     (5)  In 1996, we negotiated a royalty settlement related to a previously
          divested semiconductor business and received and recorded $4.0 of
          royalty income. We also recorded charges of $20.0 for asset
          write-downs, lease termination costs, severance, warranty repairs and
          environmental matters.

     (6)  We recorded other charges of $17.9 in 1997. We also recorded a $63.7
          pre-tax gain on the sale of General Signal Power Group and a $9.0
          pre-tax gain on the sale of an equity interest.

     (7)  In 1998, earnings were not sufficient to cover fixed charges by
          approximately $42.0. We recorded special charges of $101.7 and other
          charges of $108.2 in 1998.

<PAGE>

     (8)  We recorded special charges of $38.4 in 1999 for merger and
          restructuring initiatives. We also recorded a $23.8 pre-tax gain on
          the divestiture of Best Power, a $29.0 pre-tax gain on the divestiture
          of Dual-Lite and an investment in a Japanese joint venture, and a
          $13.9 pre-tax gain on the sale of marketable securities.

     (9)  We recorded special charges of $103.2 in 2000. These charges are
          primarily associated with workforce reductions, asset impairments,
          product rationalizations, and other restructuring actions to
          consolidate manufacturing and sales facilities. $12.3 of the charge
          was recorded in cost of products sold. Additionally, our subsidiary
          Inrange Technologies, issued 8,855,000 shares of its class B common
          stock for cash in an initial public offering. Accordingly, we recorded
          a $98.0 pre-tax gain. We also recorded a $23.2 pre-tax gain on the
          settlement of a patent infringement suit against American Power
          Conversion Corporation in 2000.

     (10) For the nine months ended September 30, 2000, we recorded special
          charges of $97.8 ($12.3 is included in cost of products sold). These
          charges are primarily associated with work force reductions, asset
          impairments, product rationalizations, and other restructuring actions
          to consolidate manufacturing and sales facilities. Additionally, we
          recorded a $23.2 pre-tax gain on the settlement of a patent
          infringement suit against American Power Conversion Corporation as
          well as a $98.0 pre-tax gain on the public issuance of stock in our
          Inrange subsidiary.

     (11) For the nine months ended September 30, 2001 we recorded special
          charges of $61.4 ($13.5 is included in cost of products sold). These
          charges related primarily to work force reductions, asset write-downs,
          and other cash costs associated with plant consolidation, exiting
          certain product lines, and other restructuring actions. This charge
          also consisted of amounts of $4.1 and $14.9 primarily related to the
          abandonment of an internet-based software system and the costs
          associated with the announced move of our corporate headquarters. We
          recorded an $11.8 pre-tax loss associated with the divestiture of
          substantially all of the assets and liabilities of our GS Electric
          business.

</TEXT>
</DOCUMENT>
