Westinghouse FB3050 Molded Case Circuit Breaker

The Westinghouse FB3050 molded‑case circuit breaker is a three‑pole, 50‑amp device rated for 600 V AC, delivering dependable overcurrent and short‑circuit protection in industrial electrical distributions. Built on the FB Frame platform, it employs AB De‑Ion arc suppression and a thermal‑magnetic trip mechanism to guard three‑phase power systems across 50/60 Hz networks. This panel‑ or switchboard‑mounted unit is designed for branch‑circuit and equipment protection in motor control centers, switchgear, conveyor lines, HVAC infrastructure, and automation machinery within manufacturing facilities. Its 600 V AC rating, 50/60 Hz compatibility, and 3‑pole configuration make it suitable for higher‑amperage three‑phase equipment and connected power systems where reliable industrial protection is required. Common replacements include Eaton FB3050, Siemens HFB3050, and Square D FA3450, underscoring its compatibility within established electrical distributions.