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    Drive Isolation & SCR Transformers

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    What is a drive isolation/SCR transformer?

    Like any other electrical transformer, a drive isolation transformer (or DIT for short) converts voltage from one type to another, however DIT’s are specifically designed to match the required voltage of an SCR drive (silicon controlled rectifier). That being said, never try to replace a drive isolation transformer or an SCR transformer with a general purpose transformer. Drive isolation transformers and SCR transformers are built specifically to handle the heavy stresses, DC current spikes and other demands of silicon controlled rectifier applications, while maximizing the quality of power and protecting the rest of the electrical system from heavier loads.

    Specially designed for heavy duty requirements.

    Drive isolation transformers and SCR transformers are designed to withstand frequent short-circuits that are commonly associated with silicon controlled rectifier applications. They also have several benefits especially when power quality and short-circuit prevention are of utmost importance. They also help to isolate noise and consequently helping to prevent overheating from harmonics and vibration, though the “isolation” in the name refers to the isolated primary and secondary terminals that protect the motor drive.

    Common sizes for drive isolation transformers range from 5 to 600 horsepower. Drive isolation transformers have a wide variety of heavy-duty applications including steel mills and other heavy industrial machinery, are available in both liquid-filled and dry-type, and can be installed both indoors and outdoors.

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

    Find all your transformers in one place with Bay Power.

    When you’re working with heavy duty machinery, you need a drive isolation or SCR transformer that you can rely on to get the job done right. Bay Power’s huge transformer inventory and expertly trained staff will help you make the right choice from our wide variety of quality, industrial strength transformers.

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    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

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    Fill your wallet, not the landfill.

    Have any old or unused Drive Isolation & SCR 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 Drive Isolation & SCR 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 Drive Isolation & SCR 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 Drive Isolation & SCR Transformers.


    Thanks to our extensive inventory of Drive Isolation & SCR 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 Drive Isolation & SCR Transformers shouldn’t be.

    New Surplus

    Our selection of new surplus Drive Isolation & SCR 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.