Square D EH34020U Contactor 3 Phase 480V AC 20A

Square D EH34020U is a three‑pole molded‑case circuit breaker from Schneider Electric's EH series, delivering 20 A of overcurrent protection for 480Y/277 V three‑phase systems in plug‑in form. Equipped with a thermal‑magnetic trip, it is rated for operation up to 40°C and provides an interrupting capacity of 14 kA at 480Y/277 VAC and up to 65 kA at 240 VAC, making it suitable for branch protection on industrial feeders and motor circuits. Designed for use in compatible Square D panels, this plug‑in unit integrates with standard EH family buses and mounting arrangements, offering straightforward replacement or upgrade of aging protection devices in commercial and industrial power distributions.