circuit breaker 3VA2 IEC Frame 1000 breaking capacity class C Icu=110 kA @ 415 V 3-pole, motor protection ETU350M, LSI, In=800 A overload protection Ir=320 A...800 A short-circuit protection Isd=3...15 x Ir, Ii=15 x In nut keeper kit circuit breaker 3VA2 IEC Frame 1000 breaking capacity class C Icu=110 kA @ 415 V undervoltage release 24 V DC 2 auxiliary switches HQ 1 trip alarm switch HQ 1 electrical alarm switch