Eaton WMZS3B30 Miniature Circuit Breaker Switch

Eaton WMZS3B30 is a compact miniature circuit breaker switch rated for 30 A with a 10 kA short‑circuit breaking capacity, designed for 277/480 VAC installations. This protective device provides overcurrent protection by interrupting fault currents in electrical circuits, helping prevent damage to conductors and equipment. The WMZS3B30 carries the Eaton name and is intended for use wherever a reliable, code‑compliant breaker is required at voltages of 277/480 VAC. With a 30 A nominal rating and a 10 kA interrupting capacity, it protects feeders and devices sized for that current level and can handle fault currents up to its rated capacity at these voltages. Its compact form factor supports installation in standard panelboards and enclosures, making it suitable for both new installations and panel configurations that require precise overcurrent protection at 277/480 VAC.