EXHIBIT 12 THOMAS & BETTS CORPORATION COMPUTATION OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) January 2 Year Ended December 31 1994 1992 1991 1990 1989 Earnings before income taxes $ 78,444 $ 69,755 $67,988 $74,375 $78,925 Add: Interest on indebtedness 30,247 33,405 12,376 12,998 10,240 Amortization of debt expense 1,062 2,538 0 0 0 Portion of rents representative of the interest factor 7,193 6,690 3,982 3,971 3,790 Earnings as adjusted $116,946 $112,388 $84,346 $91,344 $92,955 Fixed charges: Interest on indebtedness $ 30,247 $ 33,405 $12,752 $12,998 $10,240 Amortization of debt expense 1,062 2,538 0 0 0 Portion of rents representative of the interest factor 7,193 6,690 3,982 3,971 3,790 Total fixed charges $ 38,502 $ 42,633 $16,734 $16,969 $14,030 Ratio of earnings to fixed charges 3.0x 2.6x 5.0x 5.4x 6.6x