Siemens E42B070 U Molded Case Circuit Breaker

Siemens E42B070U two-pole molded-case circuit breaker is rated for 70 A and 480 V AC, delivering reliable overcurrent protection for feeders and branch circuits in commercial and industrial power distribution. It uses a thermal-magnetic trip unit to automatically interrupt faults and protect wiring and equipment, with an 18 kA interrupting rating at 480 V. This fixed-mount molded-case breaker is designed for use with Siemens low-voltage distribution panels, aligning with standard mounting schemes in industrial control systems. As part of Siemens’ molded-case family, the E42B070U provides predictable trip behavior and durable performance for circuits feeding motors, transformers, or other heavy loads in 480 V systems. For a 70 A MCCB in a 480 V service, this model offers a straightforward, compatible option with 2 poles, 70 A, 480 V AC, 18 kAIC, and fixed installation, making it a solid choice where Siemens components are preferred and compatibility with existing Siemens equipment is desired.