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Circuit Breakers, Motor Controls, MCC Buckets, Switches, and Fuses!

Westport Apparatus sells Molded case Industrial thermal magnetic and electrical circuit breakers. Our huge electrical supply warehouse is located in the heart of Orange county near Angel's Stadium. Westport Apparatus has been one of the leading electrical supply houses in the nation, specializing in quality new, and obsolete circuit breakers for over 28 years. Products we carry are:

Browse our comprehensive online catalog to find deals on a wide variety of Electrical circuit breakers. We carry circuit breakers from the world's leading manufacturers, including Square D, General Electric, FPE, Siemens( Authorized Siemens distributor in California), and Cutler Hammer breakers.


As a long-time, trusted provider of new brand name circuit breakers, switchgear, and circuit breaker hardware, we offer the best quality products at the most competitive prices in the electrical parts supply industry - all backed by a full 1-year warranty with available expedited shipping to get you what you need, fast.

Customer Satisfaction

At Westport Apparatus, we pride ourselves in our commitment to customer satisfaction. If you're unsure about what you need, or if you don't have enough information to search for your required circuit breaker, send us an Email or call us at (800) 227-4044. Visit our Westport Apparatus shop location in Orange, CA, minutes away from the Angel Stadium.

Types of Circuit Breakers

Regardless of the type of circuit breakers you need we have the perfect product to match your needs. Whether you need standard circuit breakers, ground fault breakers, motor circuit protectors or any other type of circuit breaker to fit your specific application.

Circuit Breaker After Market Supplier

We carry circuit breakers from several of the most well-known manufacturers in the industry. You can find the specific circuit breakers you need in our online superstore including Cutler Hammer Circuit Breakers, Square D Circuit Breakers and General Electric Circuit Breakers.