Circuit breaker 3VA2 IEC Frame 400 Switching capacity class M Icu=55 kA @ 415 V 3-pole, motor protection ETU350M, LSI, In=250 A Overload protection Ir=100 A...250 A short-circuit protection Isd=3...15 x Ir, Ii=15 x In Lug terminal Undervoltage release (UVR) 24 V DC 2 auxiliary switches HQ 1 tripped signaling contact HQ 1 protective trip unit signaling switch