New, used, & obsolete electrical solutions
    My Cart

    Step-Up 3-Phase Transformers

    Looking for Step-Up 3-Phase Transformers? Get a quote fast.

    Get a Quote

    What is a step up transformer?

    These 3 phase transformers are essentially half a buck boost transformer, in that they are only responsible for boosting the voltage on the secondary side. They also have many more high voltage windings than low voltage windings, allowing for incremental increases in voltage.

    Do I need a step up transformer?

    These electrical transformers step up the supply current, so they convert low voltage, high current energy into high voltage, low current energy. They are commonly used in heavy commercial and industrial applications, and are well-equipped to handle large loads of power. However, even small appliances like microwaves use step up transformers on a smaller scale.

    When choosing your step up transformer, it is important to consider the coil material, as the material the coils are made of will affect the conductivity and efficiency of the transformer. For example, copper and aluminum will both do the job, but copper will be much more efficient even if it’s more expensive.

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

    Step up your voltage with Bay Power.

    When you’re looking to step up your step up transformer, all you need to do is call Bay Power. We carry a vast selection of 3 phase step up transformers from leading transformer manufacturers, and many more. It’s time to get an electric transformer you can count on. It’s time to start shopping with Bay Power.

    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 Step-Up 3-Phase 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 Step-Up 3-Phase 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 Step-Up 3-Phase 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.

    Learn more

    Buying Options

    Product Condition FAQ

    We are proud to stock a variety of competitively priced, new and reconditioned components from the leading manufacturers of Step-Up 3-Phase Transformers.


    Thanks to our extensive inventory of Step-Up 3-Phase 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 Step-Up 3-Phase Transformers shouldn’t be.

    New Surplus

    Our selection of new surplus Step-Up 3-Phase 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.