Westinghouse Electric Company KA3125 Circuit Breaker

The Westinghouse KA3125 Circuit Breaker is a three‑pole, 125 A molded‑case device engineered for three‑phase industrial and commercial power distribution, delivering dependable overcurrent and short‑circuit protection for equipment across switchgear, panelboards, and motor control centers. With a 600 V AC rating and a thermal‑magnetic trip, it detects and interrupts fault currents rapidly to minimize damage and downtime in demanding environments such as manufacturing facilities and industrial plants. This panel‑mounted protection component supports replacements, system upgrades, and preventive maintenance by safeguarding branch circuits and equipment against overloads, helping operators maintain safe, continuous operation in commercial buildings and industrial facilities. Common replacements listed for KA3125 include Eaton KA3125, Cutler‑Hammer KA3125, and Square D KA36125, reflecting its cross‑brand compatibility within legacy and modernized KA‑series protection schemes.