circuit breaker VL400 UL type JG (cat no. LJX3K400) non-interchangeable frame, with circuit breaker approval acc. to UL 489 very high breaking capacity 3-pole; NEMA rating 100kA/480V and 25kA/600V (molded case circuit breaker) Electronic Trip Unit LCD ETU, LSIG-G with alarm TA=40°C 3 phases/4 lines In=400A, rated current ISD=1.25-10xIR, II=11X in short-circuit protection IR=150-400A ETU for line protection without auxiliary release without auxiliary/alarm switch