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    Molded Case Circuit Breakers

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    Browsing 13 - 24 of 22303 items

    Molded case circuit breaker basic information

    Molded case circuit breakers (MCCBs) are vital components used in electrical distribution systems to protect against overloads and short circuits. They are widely employed in residential, commercial, and industrial settings to ensure the safety and reliability of electrical installations.

    MCCBs are designed to interrupt the flow of electrical current when it exceeds safe limits. They consist of a trip unit that detects abnormalities in the current and a molded case that encloses the internal components. When an overcurrent condition occurs, the trip unit activates, causing the MCCB to trip and disconnect the circuit, preventing potential damage or hazards.

    These circuit breakers offer numerous advantages, such as adjustable trip settings to accommodate different load requirements, robust construction for durability, and the ability to handle high short-circuit currents. MCCBs are available in various current ratings and configurations, making them suitable for a wide range of applications.

    When selecting an MCCB, it is crucial to consider factors such as the specific application, the existing electrical panel, current ratings, and trip characteristics. Consulting with a qualified electrical professional can help ensure the correct choice and proper installation of the MCCB in accordance with safety regulations.

    Some of the most common manufacturers of MCCBs include Schneider Electric, Siemens, ABB, Eaton, General Electric, and Murray. These companies have established themselves as leaders in the industry, offering reliable and high-quality MCCBs to meet diverse customer needs. Bay Power carries new and reconditioned breakers from the top manufacturers, as well as obsolete brands that are no longer in production, by way of a stringent reconditioning process. All breakers come with a minimum 1-year warranty. 

    If you don't see the breaker you need, or if you don't know what breaker is in your panel and need help determining what to use as a replacement, contact us, we can help. 


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    Fill your wallet, not the landfill.

    Have any old or unused Molded Case Circuit Breakers lying around? Don’t get rid of them just yet. While we stock a wide range of quality electrical products and solutions, both new and reconditioned, we also buy back your unwanted equipment. So, before deciding what to do with your old Molded Case Circuit Breakers and components, have one of our expert technicians take a look to see if we can save a few parts, save the environment, and save you some cash.

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    Great service shouldn’t end after the purchase. We pride ourselves on the relationships we build with our customer-first mentality and the quality of our Molded Case Circuit Breakers and components. That’s why we offer a 1-year replacement warranty on all of our electrical products and solutions from the top manufacturers. Because when you buy with Bay Power, you buy with confidence.

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    Product Condition FAQ

    We are proud to stock a variety of competitively priced, new and reconditioned components from the leading manufacturers of Molded Case Circuit Breakers.


    Thanks to our extensive inventory of Molded Case Circuit Breakers and components, our resourceful and expertly trained staff will always be able to get the products that you need. Through our extensive network of suppliers, we are able to carry and acquire a huge variety of electrical products and solutions, so chances are if you need it, we can get it.


    Bay Power’s priority is providing you with reliable, high quality electrical hardware. That’s why our mission is to make sure our reconditioned electrical products and solutions function as perfectly as the day they were built. Because while the quality is high, the cost of Molded Case Circuit Breakers shouldn’t be.

    New Surplus

    Our selection of new surplus Molded Case Circuit Breakers may not arrive brand new in a box, but they function just as well, and have never had electricity run through them. All of the quality, none of the packaging, always with our 1-year replacement warranty.