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    Bus Box, Tap & Terminal Boxes

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    Bus Box, Tap & Terminal Boxes

    What do tap boxes do?

    A terminal box, or a tap box, is an enclosed, non-fusible bus plug used to feed bus duct systems. Tap boxes are also split up into two categories: plug-in tap boxes and end tap boxes. Plug-in tap boxes connect the busway to a bus plug. End tap boxes are attached to one or both ends of a plug-in duct run. Used across industrial and commercial applications and wherever bus duct systems are found, busway tap boxes typically carry a system of voltage of 600V with a number of current ratings ranging anywhere from 400A to 1600A.

    What to look for in a busway tap box.

    Bus duct tap boxes come in a variety of types, sizes and ratings. For example, bus duct tap boxes can be rated for both indoor and outdoor use as long as they are properly and safely enclosed. They can also be outfitted with metering provisions. It’s also important to differentiate between end tap boxes and center tap boxes. Center tap boxes are non-fusible devices that are used when circuit protection is not required; however, they are not located at the ends of the busway run. These feed the circuits from the center of the busway. End tap boxes are located at either the beginning or the end of a busway run.

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

    Your next tap box is waiting for you at Bay Power.

    No matter what your application, requirements or specifications, Bay Power has got the tap box for you. Available across a number of voltage and current ratings, our extensive selection of tap boxes includes industry-leading bus duct tap box manufacturers like Square D, ABB, Siemens, Starline, Eaton and more. All of our tap boxes come with Bay Power’s one-year replacement warranty and lightning fast shipping, so you can count on us to deliver on quality product when and where you need it most.

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    Why Bay Power

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    Fill your wallet, not the landfill.

    Have any old or unused Bus Box, Tap & Terminal Boxes 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 Bus Box, Tap & Terminal Boxes 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.

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    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 Bus Box, Tap & Terminal Boxes 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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    Product Condition FAQ

    We are proud to stock a variety of competitively priced, new and reconditioned components from the leading manufacturers of Bus Box, Tap & Terminal Boxes.


    Thanks to our extensive inventory of Bus Box, Tap & Terminal Boxes 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 Bus Box, Tap & Terminal Boxes shouldn’t be.

    New Surplus

    Our selection of new surplus Bus Box, Tap & Terminal Boxes 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.