Mersen M082489 - British Standard fuse-link Protistor® 10x28 gR 250V AC 5A
Mersen

M082489

Alternate Item Number: BS10UE25V5


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Overview

The Mersen Protistor® fuse-link, SKU M082489, is a British Standard 10x28mm gR fuse specifically engineered for high-speed semiconductor protection. This fuse-link operates at a rated voltage of 250V AC and possesses a current rating of 5A. Its compliance with IEC standard 60269-1 and -4 underscores its suitability for semiconductor protection applications. Furthermore, it is classified as gR according to the specifications of VDE 636-23 and IEC 60269.4. The M082489 features an exceptionally high breaking capacity, which is crucial for providing robust and reliable protection to sensitive electronic components. This particular fuse-link is designed without an indicator. Its application is ideal for safeguarding small inverters, Uninterruptible Power Supply (UPS) systems, motor drives, and a variety of other equipment that operate at voltages of 700V or less. The fuse-link offers a low I²t value, contributing to enhanced safeguarding of semiconductor devices. The international standard 10x28mm dimensions of this fuse-link ensure its widespread acceptance and compatibility across global markets. Manufactured in the United States by Mersen, this fuse-link is a testament to reliable protection for critical applications.
  • Mersen Protistor® 10x28mm gR fuse-link
  • Rated 5A, 250V AC
  • Designed for high-speed semiconductor protection
  • Conforms to IEC 60269-1 and -4
  • Low I²t for enhanced safeguarding

Specifications

AC Voltage Rating
250
Amperage Rating
5 A
Brand Name
Mersen
Case
Ceramic
Mounting
Bolted
Size
1.8 x 0.41 in
Size
45.6 x 10.3 mm
Standard
UL Recognized
Sub Brand
Protistor®
Type
British Standard High-Speed Fuse-Links AC Protection
Voltage Rating
250 VAC
Wattage
1 W
Package Dimensions (L x W x H)
1.8 in x 0.41 in x 0.41 in
Package Dimensions (L x W x H)
45.6 mm x 10.3 mm x 10.3 mm
Package Weight (Imperial)
0.023 lb
Package Weight (Metric)
0.010 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.