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    Custom Transformers

    Looking for Custom Transformers? Get a quote fast.

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    A custom transformer. A custom solution.

    Whether you have certain personal preferences for your transformer or your application has a specific set of requirements, a custom transformer is always a possibility. Custom built transformers are used across any number of industries for all applications, including healthcare facilities, office buildings, and schools among others. These applications often need special electrical transformers designs to reduce noise, space requirements, or meet particular regulatory standards.

    Pick a transformer, any transformer.

    Nearly every type of transformer can be custom built including K Factor transformers, medium voltage transformers, SCR transformers, and more. Almost every component and aspect of a custom transformer can be custom built as well, including tap arrangements, winding options, enclosure types, and any number of voltage combinations. Choosing a custom transformer guarantees that you’ll get a one of a kind transformer built to meet your exact specs for the job with 100% certainty and zero compromises.

    Same-day shipping available
    24-hour emergency support
    Global supplier network
    1-year Warranty

    For all your custom transformer solutions.

    Sometimes a standard transformer size just doesn’t cut it. So when you need a custom transformer solution, you can count on Bay Power to get the job done. Whether you need a custom dry type transformer, a custom oil filled transformer or any other type of custom built transformer, we promise our expert technicians combined with our extensive selection of transformer components from leading transformer manufacturers will provide you with a UL-listed, custom solution built to your exact specs.

    Request a Quote

    Please fill in the following information or contact us at (800) 699-2980 to request a free quote. Our friendly sales staff would be glad to assist you!

    Why Bay Power

    Sell to Us

    Sell to Us

    Fill your wallet, not the landfill.

    Have any old or unused Custom Transformers 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 Custom Transformers 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.

    Sell to Us



    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 Custom Transformers 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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    Buying Options

    Product Condition FAQ

    We are proud to stock a variety of competitively priced, new and reconditioned components from the leading manufacturers of Custom Transformers.


    Thanks to our extensive inventory of Custom Transformers 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 Custom Transformers shouldn’t be.

    New Surplus

    Our selection of new surplus Custom Transformers 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.