Schneider Electric EGB34050 Bolt-On Circuit Breaker

Schneider Electric EGB34050 is a 50 A, 3-pole miniature circuit breaker (MCB) in the E-Frame Bolt-On family, designed for secure bolt-on mounting in Schneider Electric NF panelboards and compatible enclosures. It is rated for 480Y/277 VAC three-phase service, delivering thermal-magnetic protection for feeders and branch circuits. The device carries a maximum interrupt rating of up to 65 kA at 480Y/277 VAC, with 35 kA at 277 VAC depending on the operating voltage, reflecting its capability across the common voltage configurations used in commercial and industrial systems. The 'bolt-on' designation indicates it installs in place with bolts rather than snap-in, and the unit is TAA-compliant. Typical applications include protection of feeders and distribution circuits in data centers, manufacturing facilities, and large commercial buildings that utilize 480Y/277 VAC power distribution. With its 50 A rating and three-pole configuration, the EGB34050 provides reliable overcurrent protection for three-phase loads while maintaining compatibility with Schneider Electric's NF panelboard ecosystem.