circuit breaker VL1200 UL; type NG (cat no. LNX3V120) non-interchangeable frame, with circuit breaker approval acc. to UL 489 very high breaking capacity 3-pole, NEMA rating 100kA/480V, (molded case circuit breaker) trip unit ETU, LSIG TA=40°C 3 phases/4 lines In=1200A, rated current ISD=1.5 to 10xIR, II=10xIn short-circuit protection IR=700-1200A overcurrent rel. for line protection without connection accessories without auxiliary release without auxiliary/alarm switch