Schneider Electric’s EJB34020 is a three-pole E-Frame miniature circuit breaker rated at 20 A for 480Y/277 VAC systems, designed to protect three‑phase distribution circuits in industrial and commercial panelboards. It features bolt-on mounting and a maximum interrupting capacity of 100 kA, making it suitable for high‑demand electrical environments and short‑circuit protection. This 20 A MCB is TAA‑compliant, intended for branch‑circuit protection in 480Y/277 VAC installations where reliable overcurrent protection is required.
