Schneider Electric EJB34040 is a 40 A, three-pole molded-case circuit breaker (MCCB) in the Square D EJB family, rated for 480Y/277 VAC three-phase service. This bolt-on, E-Frame device provides up to 100 kA maximum interrupting capacity, delivering reliable overcurrent protection for 480Y/277 VAC distribution networks. As a member of Schneider Electric’s Square D MCCB lineup, the EJB34040 is designed for compact, bolt-on installation in compatible panelboard configurations.
