Big Sale Siemens E42B040 – 40A 2 Pole Molded Case Circuit Breaker

Designed to protect commercial electrical systems, the Siemens E42B040 is a 40-amp, 2-pole molded case circuit breaker from the legacy E4 frame series. It delivers reliable thermal-magnetic trip functions with an interrupting capacity of 18kAIC at 480VAC and 65kAIC at 240VAC. The bolt-on design ensures a secure connection within older Siemens and ITE Sentron panelboards or motor control centers. When upgrading, this unit is replaced by the newer ED42B040 model.