Class H Fuses

Class H fuses provide reliable protection for electrical circuits by interrupting the flow of electricity during overloads, short circuits, and ground faults, reducing the risk of electrical fires and equipment damage. Class H fuses are suitable for residential, commercial, and industrial applications. Discover a wide selection of Class H fuses from top brands like Bussmann, Littelfuse, and Mersen at LiveWire Electrical Supply. Explore our offerings to find the perfect fuse for your needs. Since 2005, LiveWire Electrical Supply has been providing quality parts and fast shipping for in-stock products—including hard-to-find fuses. Need help finding products? For 24/7 sales assistance, call 1-650-692-0700.

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Frequently Asked Questions

LiveWire Electrical Supply is your trusted source for hard-to-find electrical supplies, offering a wide selection of circuit breakers, fuses, safety switches, and industrial control products—all ready to ship the same day. With real-time stock and price checks, you can easily find what you need at competitive prices, whether for residential, commercial, or industrial projects. Our experts are available to assist with part identification and technical support, while our expedited shipping options and free UPS Ground shipping on qualifying orders ensure fast delivery. For 24/7 assistance and personalized support, call 1-650-692-0700.

What are Class H fuses used for?

Class H fuses are used for protecting electrical circuits from overloads and short circuits in residential, commercial, and industrial applications.

What is the voltage rating of Class H fuses?

Class H fuses typically have a voltage rating of 250V or 600V, depending on the specific type and application requirements.

How do I know if a Class H fuse needs to be replaced?

A Class H fuse needs to be replaced if it has blown, which is usually indicated by a visible break in the fuse element or a change in the color of the indicator.

Can Class H fuses be used interchangeably with other fuse classes?

No, Class H fuses should not be used interchangeably with other fuse classes, as they have specific characteristics and ratings. Always use the fuse type specified by the equipment manufacturer.

What are the benefits of using Class H fuses?

Class H fuses provide reliable overcurrent protection, are relatively inexpensive, and are available in a wide range of amperages to suit various applications.

Shipping and Returns

Easy Returns
You may return items within 30 days of delivery for a refund. Please view our return policy here.

FREE Shipping on orders over $100

We offer one to five-day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s). Please view our shipping policy here.

Same-Day Shipping

We strive to ship out your items within one business day. The shipping process may take up to 5 business days on some occasions. Feel free to contact us if your order is time sensitive. Call 1-650-692-0700 or email [email protected] for help.

Limited Warranty

Warranty Gurantee
LiveWire certifies that every product shipped out of stock, by manufacturers and by fulfillment partners will be free of functional defects for one (1) year. If any part is found with functional defects during the warranty period, LiveWire will send out a replacement item for free. Warranty items must be returned to LiveWire for inspection and must be postmarked within the warranty period.

Contact our support team by emailing [email protected] or calling 1-650-692-0700 during normal business hours for help with your warranty claim.

Disclaimer: Livewire Electrical Supply is not affiliated with, authorized by, or acting as a representative for the brands showcased on our platform. Please be aware that products sold by Livewire Electrical Supply do not include the original manufacturer’s warranty. All trademarks, brand names, and logos featured on this website belong to their respective owners. It’s important to note that this website is not endorsed, sanctioned, or approved by any of the manufacturers or trademark holders mentioned.

Class H Fuses

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1-650-692-0700

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LiveWire Electrical Supply PO Box 4221 Burlingame, CA 94011

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