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    Definite Purpose Contactors

    Looking for Definite Purpose Contactors? Get a quote fast.

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    What is a definite purpose contactor?

    So what exactly is a “definite purpose” contactor? Definite purpose contactors are designed to handle challenging electrical loads. With current ratings ranging anywhere between 20A to 350A, definite purpose contactors are used across commercial, industrial and agricultural sectors. Voltage ratings top out at 600V, so definite purpose contactors are mostly used in low voltage applications. However they can be configured for both single phase and 3 phase systems.

    Definite purpose. Multiple purposes.

    While they are called definite purpose contactors, their purposes span a wide variety of applications. While they are most commonly found in HVAC, air conditioning, heating systems and the like, they can be used in everything from elevators and lighting systems to food processing plants and heavy duty construction machinery. Definite purpose contactors are as versatile as they are convenient and no matter what your application, there are both 3 pole definite purpose contactors and 2 pole definite purpose contactors to meet your every need. 4-pole configurations are also available.

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

    Redefine how you buy your definite purpose contactor.

    Whether you’re looking for a definite purpose contactor for lighting systems or a definite purpose magnetic contactor, Bay Power has got everything you need and more. Thanks to our exceptional selection, expert customer service and lightning fast shipping, we do our best to make your purchase with Bay Power as seamless as possible. Choose from our product selection of industry-leading manufacturers including Eaton definite purpose contactors, Siemens definite purpose contactors, Square D definite purpose contactors, Furnas definite purpose contactors, and many more. The choice is yours when you choose 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 Definite Purpose Contactors 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 Definite Purpose Contactors 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 Definite Purpose Contactors 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 Definite Purpose Contactors.


    Thanks to our extensive inventory of Definite Purpose Contactors 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 Definite Purpose Contactors shouldn’t be.

    New Surplus

    Our selection of new surplus Definite Purpose Contactors 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.