CIRCUIT-BREAKER VL 1600N STANDARD SWITCHING CAPACITY ICU=50KA / 415 V AC 4 POLE, LINE PROTECTION OVERCURRENT RELEASE ETU20, LSI IN=1600A, RATED CURRENT IR=640-1600A, OVERLOAD ISD=1,5TO8XIR, II=9XIN SHORT-CIRCUIT N NOT PROTECTED WITHOUT AUXILIARY RELEASE WITHOUT AUXILIARY/ALARM SWITCH