Mersen MRF80 - Fast-Acting Microfuse 250 Volts 0.08 amps MRF series.
Mersen

MRF80

Alternate Item Number: 782001284404

UPC: 782001284404

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Minimum Qty: 5

Multiplier: 5

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Overview

The Mersen MRF80 is a fast-acting microfuse designed for precise circuit protection in sensitive electronic applications. Rated at 250V and 0.08A (80mA), this radial lead fuse ensures rapid overcurrent interruption, safeguarding control systems, instrumentation, power supplies, and telecommunications devices. Its thermoplastic body and cap meet UL 94-V0 flammability standards for safety and durability. The tin-lead plated copper alloy pins provide excellent conductivity for reliable PC mount connections. The MRF80 is VDE, MITI, CE, UL Recognized, and CSA Accepted, making it suitable for global markets. With a compact design and fast-acting performance, this fuse ensures component longevity and system uptime in critical applications. Ideal for protecting low-current circuits where precise fault detection is essential. Specifications include a 250VAC rating at 50A interrupting rating. The fuse length is 1 inch. This component is manufactured in the US.
  • Fast-acting microfuse for precise circuit protection
  • Rated 250V, 0.08A (80mA)
  • Radial lead, PC mount design
  • UL 94-V0 flammability rated thermoplastic body and cap
  • VDE, MITI, CE, UL Recognized, and CSA Accepted for global use

Specifications

Amperage Rating
0.08 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Pin
Connection Type
PC Mount, Radial Lead
Current Rating
0.08 A
Interrupt Rating
0.05 kA
Material
Thermoplastic, Tin-Lead Plated Copper Alloy
Mounting
Surface
Mounting Type
PC Mount
Series
MRF
Standard
50mA to 6.3A, 250VAC - UL Recognized and CSA Accepted
Type
Micro Fuses
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
0.33 IN x 0.33 IN x 0.3 IN
Package Dimensions (L x W x H)
8.382 mm x 8.382 mm x 7.62 mm
Package Weight (Imperial)
0.010 L
Package Weight (Metric)
0.005 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.
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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.