Westinghouse Electric EB3030 Three-Phase Circuit Breaker

The Westinghouse EB3030 is a three‑phase circuit breaker (Part Number EB3030) rated for 30A at 240V AC and built as a 3‑pole, Type EB device for industrial electrical distribution and equipment protection. It delivers overload and short‑circuit protection for three‑phase systems and is commonly used in motor control panels, HVAC installations, industrial machinery, compressors, and other commercial power distribution equipment requiring reliable interruption of fault currents. This heavy‑duty breaker offers manual reset and switching capability and is suitable for both industrial and commercial electrical infrastructures, including automation panels, conveyors, pumps, and motor branch circuits. Common replacements include Eaton BAB3030, Siemens BQ3B030, and Square D QOB330, underscoring its role in retrofit projects and spare‑part pools for three‑phase systems.