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    Class RK5 Fuses

    Looking for Class RK5 Fuses? Get a quote fast.

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    Meet the Class RK5 fuses: Class RK1’s little brother.

    Like the Class RK1 fuse, Class RK5 fuses are rejection fuses. They are outfitted with special rejection tips which allows them only to be installed with Class R fuse holders, and prevents improper configurations with other fuse holders and fuse classes. Class RK5 fuses are closely related to Class RK1 fuses; however, the Class RK5 fuses are less expensive than Class RK1. Further, while Class RK5 fuses are current limiting, they are still less current limiting than Class RK1 fuses.

    What you need to know about Class RK5 fuses.

    Class RK5 fuses are non-renewable dual element fuses, meaning that once the element inside has melted, it must be completely replaced. They are available in both 250V and 600V voltage ratings, with current ratings ranging from 1A to 600A. Rated to interrupt at least 200,000A, Class RK5 fuses are used to protect circuits across a number of applications, including AC power distribution mains, power panelboards, combination starters, motor control centers, branch circuits, and more. They are especially popular for motors and transformers.

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

    Accept only the best rejection fuses.

    When you buy fuses at Bay Power, you’ll find the quality Class RK5 fuses you need at the prices you want. We are proud to carry an impressive selection of Bussmann fuses and Bussmann fuse holders, so you know you’re always getting a fuse you can count on. Take your pick from our extensive lineup of Bussmann Class RK5 fuses. Whether you choose a FRN-R model or an FRS-R model, you know you’re getting the performance and reliability of one of the industry’s top fuse manufacturers.

    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

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    Sell to Us

    Fill your wallet, not the landfill.

    Have any old or unused Class RK5 Fuses 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 Class RK5 Fuses 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 Class RK5 Fuses 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 Class RK5 Fuses.


    Thanks to our extensive inventory of Class RK5 Fuses 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 Class RK5 Fuses shouldn’t be.

    New Surplus

    Our selection of new surplus Class RK5 Fuses 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.