Schneider Electric EZM1600CB Main Circuit Breaker

Schneider Electric's EZM1600CB Main Circuit Breaker is the 600 A main breaker unit designed for EZ Meter-Pak meter centers. It provides a single-phase, 120/240 VAC, 3-wire service with a 600 A bus and a short-circuit current rating of 65 kA SCCR, suitable for both overhead and underground installations (OH/UG) in Type 3R enclosures. This main breaker unit serves as the primary protective device within the EZ Meter-Pak assembly, coordinating with the meter center's bus structure to feed downstream circuits. The EZM1600CB is compatible with EZ Meter-Pak configurations and is specified for 600 A service, enabling robust protection for mid-size commercial and multi-tenant electrical distributions. Construction notes indicate aluminum busbar construction for the 600 A main unit, which supports reliable high-current distribution while meeting industrial safety standards. The model is commonly described as a 1 phase, 3 wire main breaker unit, 600 A, 120/240 VAC, OH/UG, Type 3R, 65 kA SCCR, from Square D by Schneider Electric. This precise configuration is used when a centralized main protection point is required in a meter-center arrangement, delivering controlled, switchable ingress to feeders while maintaining compliance with applicable electrical codes and utility meter requirements.