Circuit breaker 3VA2 IEC Frame 1000 Switching capacity class M Icu=55 kA @ 415 V 3-pole, system protection ETU550, LSI, In=800 A Overload protection Ir=320 A...800 A short-circuit protection Isd=0.6..10x In, Ii=1.5..12x In N-conductor protection optionally with external current transformer, up to 160% Lug terminal Undervoltage release (UVR) 120-127 V AC 50/60 Hz 2 auxiliary switches HQ 1 tripped signaling contact HQ 1 protective tripping signaling switch