circuit breaker VL250 UL type FG (cat no. HFK3G150) non-interchangeable frame, with circuit breaker approval acc. to UL 489 high breaking capacity 3-pole; NEMA rating 65KA@480V and 18KA@600/347V (molded case circuit breaker) Electronic Trip Unit LCD ETU, LSIG TA=40°C 3 phases/4 lines In=150A, rated current ISD=1.25-10xIR, II=11X in short-circuit protection IR=60-150A Electronic Trip Unit for line protection without connection accessories without auxiliary/alarm switch