Schneider Electric EJB34020U Molded Case Circuit Breaker

Schneider Electric EJB34020U Molded Case Circuit Breaker is a three‑pole, 20 A E‑Frame MCCB designed for 480Y/277 VAC service and bolt‑on mounting. It delivers a high short‑circuit interrupting capacity of up to 100 kA, making it suitable for protecting three‑phase loads in commercial and light‑industrial distribution applications where high‑voltage protection is required. The EJB34020U is intended for panels that accept E‑Frame, bolt‑on breakers and bears Trade Agreements Act (TAA) designation for government and other procurement channels. As part of Schneider Electric’s Square D lineage, this model provides a familiar form factor and reliable protection for 3‑phase circuits in high‑voltage distribution systems, ensuring precise overload and short‑circuit protection at 480Y/277 VAC with a compact, easy‑to‑install profile.