CIRCUIT-BREAKER VL 1250N STANDARD SWITCHING CAPACITY ICU=50KA / 415 V AC 3 POLE, LINE PROTECTION OVERCURRENT RELEASE ETU20, LSI IN=1000A, RATED CURRENT IR=400-1000A, OVERLOAD ISD=1,5TO10XIR, II=11XIN SHORT-CIRCUIT SHUNT RELEASE 208 - 277 V AC WITHOUT AUXILIARY/ALARM SWITCH