Westinghouse MCP331000R Motor Circuit Protector

The Westinghouse MCP331000R Motor Circuit Protector is a 3-pole device (part number MCP331000R) rated for 100 A at 600 VAC, using a magnetic-trip mechanism to provide fast short-circuit protection for three‑phase industrial motors. It is designed for panel mounting in motor control centers and industrial panels, with screw-terminal connections and suitability for high‑amperage protection in demanding environments, including OEM industrial control assemblies. Typical applications include motor control centers, conveyor systems, HVAC, pumps, packaging machinery, process automation systems, and material handling equipment requiring reliable three‑phase protection at higher current loads. The unit operates at 50/60 Hz and is industrial‑duty rated for use in switchgear and MCC applications. Common replacements include Eaton HMCP050K2C, Allen‑Bradley 140M‑C2E‑B100, and Square D FA34100.