CIRCUIT-BREAKER VL 1250N STANDARD BREAKING CAPACITY ICU=55KA / 415 V AC 3 POLE, LINE PROTECTION ELECTRONIC TRIP UNIT ETU20, LSI IN=1250A, RATED CURRENT IR=500-1250A, OVERLOAD ISD=1,5TO9XIR, II=10XIN SHORT-CIRCUIT WITHOUT AUXILIARY RELEASE ETU COMMUNICATION-CAPABLE