The Westinghouse EA3030 U is a 30A, 3-pole, 240V AC low-voltage circuit breaker engineered for dependable overload and short-circuit protection in three‑phase industrial and commercial power systems. It is designed for use in motor control panels, HVAC systems, and industrial machinery, delivering branch circuit and equipment protection with manual reset and switching capability within rugged heavy‑duty industrial construction. Part Number EA3030 U; common replacements include Eaton BAB3030, Siemens BQ3B030, and Square D QOB330.
