S&C Electric Company

Fault Tamer® Fuse Limiters

Ratings

50/60-Hz Ratings
Voltage, kV Amperes, RMS
System Class,
ANSI (IEC)
System Maximum BIL Cont. Interr., Sym.
60 Hz 50 Hz
Three-
Phase
Phase-to-
Neutral
Three-
Phase
Phase-to-
Neutral
15 (12) 15 8.7 15 8.7 110 20 12 000
15 (12) 15 8.7 15 8.7 125 20 12 000
25 (24) 29 16.8 26 15.1 125 20 12 000
25 (24) 29 16.8 26 15.1 150 20 12 000
25 (24) 29 16.8 26 15.1 150 20 12 000
22/38 (20.8/36) 21.9 20.8 150 20 12 000
38 (36) 38 21.9 36 20.8 150 20 12 000

 Also applies to phase-to-phase applications. Applications involving single-phase transformers connected phase-to-phase, as well as three-phase applications require the use of a Fault Tamer in each lead.
 Meets 170 kV BIL rating requirement of IEC Publication 282-2, for mounting with porcelain insulator.