Schneider Electric Square D EJB34050 Circuit Breaker

Schneider Electric Square D EJB34050 is a 3-pole molded-case circuit breaker in the EJB family, rated for 50 A at 480Y/277 VAC and designed to protect branch circuits in commercial and light industrial panelboards. This bolt-on, E-frame MCCB employs a thermal-magnetic trip mechanism to provide both long-time and instantaneous protection, with a 65 kA interrupt rating at 480 V for safe fault current interruption. The unit occupies 3 spaces and accepts lug connections for aluminum or copper conductors (commonly 12 AWG to 2/0 AWG), with overall dimensions around 4.05 in long, 2.94 in wide, and 5.66 in high to fit standard enclosures. As a 3P, 50 A device intended for panelboard installations, the EJB34050 delivers reliable protection for HVAC, lighting, and other loads, offering standard trip characteristics that promote selective isolation of faults without unnecessary power interruption.