circuit breaker 3VA2 IEC frame 630 breaking capacity class M Icu=55kA @ 415V 4-pole, line protection ETU350, LSI, In=630A overload protection Ir=250A...630A short-circuit protection Isd=1.5...9x Ir, Ii=9x In N conductor protection adjustable (OFF, 50%, 100%) nut keeper kit
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