NJX3P400L Circuit Breaker by Siemens SIEMENS CIRCUIT BREAKER MOLDED CASE FRAME JG 400 AMPS 3 POLES 600 VAC WITH TRIP UNIT 545 CAT# NJX3P400L New Surplus Make an Offer Send to a Friend Type: JG Voltage: 600 V Poles: 3 Frame Amperage: 400 A Mount: Bolt-in Return To Circuit Breakers