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    NEMA Terminal Blocks

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    NEMA Terminal Blocks

    The basics of NEMA terminal blocks.

    NEMA terminal blocks are rated according to NEMA standards and are intended for use in circuits rated up to 1000 VAC. NEMA terminal blocks utilize a screw clamp mechanism, making them extremely reliable and able to withstand rougher conditions. You’ll find NEMA terminal blocks in heavy duty applications, and while they do take up more space than IEC terminal blocks, they are more capable in handling high current applications. However, rail sizes used for NEMA terminal blocks differ from manufacturer to manufacturer. NEMA terminal blocks can also be panel mounted.

    The advantages of NEMA terminal blocks

    NEMA terminal blocks are built with open construction which makes them easier to maintain, wire and configure. They are screw clamp terminal blocks, making them extremely tough and rugged, creating a reliable connection thanks to the high contact pressure between the conductor and conductor strip. Sectors that rely on NEMA terminal blocks include industrial, commercial, marine, and even railways. While they may offer less terminations per linear foot than IEC terminal blocks, they can still be more cost-effective in certain applications. NEMA terminal blocks can accommodate wires ranging from 0.34 mm2 to 4 mm2.

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

    Your source for all your NEMA terminal blocks.

    Your next NEMA terminal block is waiting for you at Bay Power. With quick shipping and our extensive selection, you can count on Bay Power to deliver the NEMA terminal you need, when you need it. Choose from a variety of top quality products from industry-leading brands including Wago terminal blocks, Allen Bradley terminal blocks, ABB terminal blocks, Phoenix terminal blocks, Siemens terminal blocks and more.

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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

    Sell to Us

    Sell to Us

    Fill your wallet, not the landfill.

    Have any old or unused NEMA Terminal Blocks 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 NEMA Terminal Blocks 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 NEMA Terminal Blocks 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 NEMA Terminal Blocks.


    Thanks to our extensive inventory of NEMA Terminal Blocks 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 NEMA Terminal Blocks shouldn’t be.

    New Surplus

    Our selection of new surplus NEMA Terminal Blocks 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.