This Siemens SENTRON SERIES 1200A CIRCUIT BREAKER 3 POLE 600 VAC NXD63B120 is a circuit protection device manufactured by Siemens. It shields downstream wiring and equipment from damage by interrupting the circuit during a fault or overload. Key specifications noted on this listing include 600 VAC, 1200A, 3 POLE. It is commonly in equipment protection and branch-circuit wiring applications.
