Circuit breaker VL630N Standard switching capacity Icu=55 kA, 415V AC 3-pole, system protection Overcurrent release ETU20, LSI In=630 A, Rated current Ir=252...630 A, Overload protection, ISD=1.5 to 9xIR, II=10xIN Short-circuit protection Undervoltage release 220...250 V AC Auxiliary/alarm switch mounting kit 2 AUX (1 NO+1 NC)+1 AS (1 NO)