Schneider Electric EHB34020 3 Pole Circuit Breaker

Schneider Electric's Square D EHB34020 is a three‑pole, 20‑amp molded‑case circuit breaker designed for 480Y/277VAC three‑phase power. Built on the EHB bolt‑on frame, it provides thermal‑magnetic protection for branch circuits in commercial and industrial switchgear and panelboards, with 3P configuration for balanced three‑phase loads. It is rated for 20A and offers interrupting capacity up to 14 kA at 480 VAC (65 kA at 240 VAC, per catalog data), making it suitable for protecting feeders and motors in higher‑voltage distribution networks. The EHB34020 is a legacy Square D/Schneider Electric design within Schneider Electric's protection lineup, reflecting the long‑standing approach to high‑voltage molded‑case protection in control panels and power distribution centers, and is commonly used to safeguard 3‑phase circuits in industrial facilities. In practice, it is suitable for older 3P 480Y/277V panels that require bolted connections and a thermal‑magnetic trip.