Square D EGB34030 Molded Case Circuit Breaker

The Square D EGB34030 is a 3-pole, 30 A molded-case circuit breaker in the E-Frame family, rated for 480Y/277 VAC three-phase service, designed to provide reliable overload and short-circuit protection in commercial and industrial panelboards. Built by Square D (Schneider Electric) with a thermal-magnetic trip mechanism and HACR rating, it interrupts fault currents up to 35 kA at 480Y/277 VAC, making it suitable for feeders and branch-circuit protection in NF panelboards and similar distribution assemblies. The bolt-on, 3-space enclosure measures approximately 2.94 inches wide by 4.05 inches high by 5.66 inches deep and weighs around 4 pounds, providing a compact, field-installable fit in compatible E-frame panels. Typically used where a 30 A, 3-pole protection is required for equipment operating at up to 480 VAC, including motor loads and electrical feeders in commercial settings; this model's 3-pole configuration and bolt-on mounting simplify replacement in Square D NF panelboard architectures.