circuit breaker VL250N standard breaking capacity Icu=55kA, 415V AC 4-pole, line protection Trip Unit ETU20, LSI In=200A, rated current IR=80...200A, overload protection, ISD=1.5 to 10xIR, II=11xIN short-circuit protection N unprotected without auxiliary release Auxiliary/alarm switch mounting kit 2 AUX (1 NO+1 NC)+1 AS (1 NO)