Westinghouse Electric 80E7390 Circuit Breaker Assembly

The Westinghouse 80E7390 is a four-pole, 100 A FB-type circuit breaker assembly rated for 600 VAC, designed for industrial power distribution and protection in large switchgear, MCCs, and heavy electrical equipment. It provides multi-pole fault interruption and circuit isolation with an auxiliary contact configuration of 1A1B, making it suitable for installations that require visible and reliable status signaling along with protection. Key specs include Manufacturer Part Number 80E7390, 40 °C temperature rating, and its primary function to protect power distribution systems from overloads and short circuits. Typical applications encompass manufacturing facilities, process plants, substations, motor control centers, and industrial automation systems that rely on high-capacity electrical distribution equipment.