3WN5143-2A...-....
FIXED-MOUNTED CIRCUIT-BREAKER 4-POLE, SIZE I IU=800AA TO UE=690V AC 50/60HZ 50KA AT 500V VERTICAL BUSBAR CONNECT.ON TOP HORIZONT.BUSBAR CONNECT.BOTTOM SETTING RANGE 126 TO 315A W.MOUNTED ARC-CHUTE EXTENSION
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