Schneider Electric Square D EGB34050 Circuit Breaker

Schneider Electric's Square D EGB34050 is a three-pole E-Frame miniature circuit breaker rated at 50 A for 480Y/277 VAC, designed for bolt-on mounting in Square D NF panelboards and other compatible E-Frame enclosures. It delivers up to 65 kA interrupting capacity at the rated voltage, enabling reliable isolation of faults on three-phase feeders in commercial and industrial power-distribution systems. As part of the EGB family, this 3P, 50A device is specified for bolt-on installation and carries a Trade Agreements Act (TAA) designation for government procurement. In typical 480Y/277 VAC installations, the EGB34050 protects three-phase circuits such as motor feeders and distribution buses from overload and short circuits, matching the current rating, voltage, and interrupting duty required by Square D NF panelboards. When selecting a replacement, ensure the model number, frame size, and mounting method align with your panelboard’s catalog and enclosure to maintain proper compatibility and safety standards.