Westinghouse FB3190ML Molded Case Circuit Breaker

The Westinghouse FB3190ML is a 3‑pole, 25 A molded‑case circuit breaker in the FB Frame family, delivering thermal‑magnetic overcurrent protection for three‑phase power systems. This panel or switchboard mounted unit protects medium‑amperage motor control centers, conveyors, HVAC infrastructure, automation machinery, and other equipment within industrial distributions operating at 50/60 Hz. It’s designed for branch‑circuit and equipment protection in industrial and commercial electrical systems, offering reliable short‑circuit and overload protection for three‑phase applications. The UNMP (Used, No Manufacturer Packaging) condition indicates it is a fielded component suitable for replacement, retrofit, or maintenance within existing installations. Common replacements include Eaton FB3025, Siemens HFB3025, and Square D FA3425, reflecting continued compatibility for 3‑phase protection across industrial power systems.