Westinghouse 6638C31G87 3P 30A Circuit Breaker

The Westinghouse 6638C31G87 three-pole, 30-amp circuit breaker is designed for industrial electrical distribution and is intended for panel- or switchgear-mounted protection. As a three-phase device, it provides overcurrent and short-circuit protection for industrial and commercial electrical panels, and is commonly installed in motor control centers, switchgear assemblies, manufacturing equipment panels, and other power-distribution points requiring 30 A protection. Its manufacturer part number is 6638C31G87, and it supports industrial environments in manufacturing plants and commercial facilities where dependable three-phase protection and circuit isolation are required to keep equipment running. Maintenance teams, electrical contractors, and system integrators use this Westinghouse breaker for electrical system replacement and overload protection upgrades within industrial power distribution systems and equipment protection circuits. Common replacements include Eaton 3-Pole 30A Circuit Breakers, Siemens Industrial 3P Circuit Breakers, and Square D Three-Phase Circuit Breakers.