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circuit breaker 3VA2 IEC frame 1000 breaking capacity class M Icu=55kA @ 415V 3-pole, line protection ETU350, LSI, In=1000A overload protection Ir=400A...1000A short-circuit protection Isd=1.5...10 x Ir, Ii=10 x In nut keeper kit 3 auxiliary switches HQ
