Challenger SEH-3-C-20U Industrial Circuit Breaker

The Challenger SEH-3-C-20U is a 3-pole molded‑case circuit breaker rated for 20 A at 480 V, a member of Challenger’s SEH family. It delivers 14 kA of interrupting capacity at 480 V (14 kAIC), enabling protection of three‑phase distribution circuits in industrial equipment and control panels. The SEH3C020 variant is designed specifically for 3‑phase, 480 V systems and is commonly used as a feeder or disconnect within industrial installations that require a 20 A rating. With rugged molded‑case construction and a three‑pole configuration, this device provides reliable overcurrent protection in standard MCCB enclosures and is compatible with common wiring practices in industrial panel builds. The SEH series represents a long‑standing Challenger line that answers the need for compact, bolted‑in protection in industrial environments where 480 V three‑phase distribution is used.