Westinghouse Electric Corporation BA120 Circuit Breaker

The Westinghouse BA120 Circuit Breaker is a 20A, 1-pole, Type BA device designed for bolt-on panel mounting in industrial and commercial power distribution systems. It protects electrical circuits from overload and short-circuit conditions in panelboards, lighting systems, motor control equipment, and electrical service applications found in facilities. Maintenance teams, OEM technicians, and system integrators use this breaker for replacement, retrofit projects, panel upgrades, and electrical protection tasks. Key specifications include Manufacturer Part Number BA120, voltage rating 120/240VAC, current rating 20A, SWD switching duty rating, and its function as circuit protection and power distribution. Common replacements listed for this part include Eaton BAB1020, Square D QOB120, and Siemens BQ1B020 Circuit Breakers.