Mersen Ferraz

"Known for precision engineering and innovative designs, Mersen's fuses are crafted to provide superior protection in industrial machinery, power generation, and more. Mersen fuses are designed to handle high and low voltage applications for reliable protection against overloads and short circuits. Shop with confidence at LiveWire Electrical Supply, where you’ll find fast, flexible shipping and industry experts who will find the right solution for you. If we do not have the specific Mersen fuse you want, we will find you an equivalent. Since 2005, LiveWire Electrical Supply has been providing quality parts and fast shipping for in-stock products—including hard-to-find Mersen items. Need help finding products? For 24/7 sales assistance, call 1-650-692-0700."

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Showing 1–48 of 151 results

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Showing 1–48 of 151 results

Showing 1–48 of 151 results

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.

Mersen is a global leader in  circuit-protection solutions, offering a wide range of products such as fuses, surge protection devices, and power distribution blocks. Mersen products have a strong reputation for reliability, innovation, and commitment to electrical safety, providing peace of mind and superior performance for a wide range of applications.

Mersen specializes in circuit-protection solutions, focusing on products such as fuses, surge protection devices, and power distribution blocks. These products are designed to safeguard electrical systems from overcurrents, voltage spikes, and other potentially damaging events, ensuring the reliability and safety of electrical installations in various applications ranging from industrial facilities to residential buildings.

LiveWire provides a one-year warranty for Mersen products.  If a defect is found within that warranty period, we will send out a free replacement of the product. For more information, please check out our additional warranty and return policies.

LiveWire Electrical Supply carries a wide range of Mersen fuses and fuse reducers.

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 sales@livewiresupply.com 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 support@livewiresupply.com 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.

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