Mersen RF100 - Fuse RF - Class H - Fast-Acting 250VAC 100A Blade
Mersen

RF100

Alternate Item Number: RF100

UPC: 068938720353


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Overview

The Mersen RF Series fuse, SKU RF100, is a Class H, fast-acting fuse designed for general-purpose applications where available short-circuit currents do not exceed 10,000 amperes. This zinc blade fuse operates at a voltage rating of 250 VAC and a current rating of 100 A. It is specifically designed for use with Mersen Class H and K fuse blocks (250V), as indicated in Mersen's catalog. For replacement fuse links, the RL series die-cut zinc replacement links are recommended, available from 2 to 600 amperes across 31 ratings. The RF Series fuses are compatible with Mersen fuse blocks that accommodate Class H, K, and R 250V power fuses. These fuse blocks feature high conductivity tin-plated copper clips and can be equipped with various connector types, including box connectors suitable for copper wires. The RF100 fuse provides essential overcurrent protection for electrical circuits, ensuring the safety and reliability of connected equipment. Its blade connection type facilitates straightforward installation within compatible fuse holders. Manufactured in the USA, this fuse is a reliable component for industrial and commercial electrical systems requiring Class H protection.
  • Mersen RF Series Class H fuse
  • Fast-acting for quick circuit interruption
  • 100 Ampere current rating
  • 250 VAC voltage rating
  • Blade connection type for easy installation

Specifications

AC Voltage Rating
250 V
Amperage Rating
100 A
Application
General purpose loads where short circuits are 10,000 amperes or less
Body Material
FWGE
Brand Name
Mersen
Class
Class H
Connection
Blade
Connection Material
Brass
Interrupt Rating
10 kA
Mounting
Clip
Size
5.88 x 1.06 in
Size
149.352 x 27 mm
Special Features
Knurled bushings for ease of disassembly Rugged construction for maximum service life Precision die-cut renewal links renew quickly and give repeatable performance
Standard
UL listed to standard 248-7 File E2137 CSA certified to standard C22.2 no. 248.7
Type
Renewable Fuses
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
5.88 in x 1.06 in x 1.06 in
Package Dimensions (L x W x H)
149.352 mm x 27 mm x 27 mm
Package Weight (Imperial)
0.400 lb
Package Weight (Metric)
0.181 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

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Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.