CIRCUIT-BREAKER VL 1250N STANDARD BREAKING CAPACITY ICU=55KA / 415 V AC 3 POLE, LINE PROTECTION ELECTRONIC TRIP UNIT ETU22, LSIG 3PHASES/4WIRES WITH PIGTAIL IN=1000A, RATED CURRENT IR=400-1000A, OVERLOAD ISD=1,5TO10XIR, II=11XIN SHORT-CIRCUIT WITHOUT AUXILIARY RELEASE ETU COMMUNICATION-CAPABLE