circuit breaker VL400H high breaking capacity Icu=70kA, 415V AC 3-pole, line protection Trip Unit ETU20, LSI In=315A, rated current IR=128...315A, overload protection, ISD=1.5 to 10xIR, II=11xIN short-circuit protection without auxiliary release Auxiliary/alarm switch mounting kit 2 AUX (1 NO+1 NC)+1 AS (1 NO)