Mersen GFN10 - Fuse GFN - Midget - Time-Delay 250VAC 10A Ferrule Visual Indicator
Mersen

GFN10

Alternate Item Number: GFN10

UPC: 782001767433


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Overview

The Mersen GFN10 is a time-delay midget fuse designed for supplemental circuit protection in applications requiring temporary overload tolerance. Rated at 250VAC and 10A, this ferrule-type fuse features a built-in blown fuse indicator that provides both visual and remote signaling capabilities. The fuse incorporates a 12-second time delay at 200% of its rated current, allowing it to withstand transient overloads without nuisance tripping. When the fuse operates, the pin indicator extends outward, making it immediately visible that the circuit is open. The GFN10 is compatible with UltraSafe™ fuse holders across the 1/10 to 10A range and measures 1.5 inches in length by 0.406 inches in diameter (10mm x 38mm). It holds UL Listed certification under standard 248-14 (File E33925) for ratings from 1/10 to 15A. This fuse is specifically engineered for solenoid and control circuits where both time-delay functionality and blown fuse indication are essential requirements. It is not suitable for branch circuit protection applications.
  • 250VAC rated, 10A current with 12-second time delay at 200% rating
  • Built-in pin indicator for visual and remote blown-fuse signaling
  • Ferrule connection type, 10mm x 38mm dimensions (midget size)
  • UL Listed to standard 248-14 (File E33925) for 1/10 to 15A ratings
  • Compatible with UltraSafe™ fuse holders (1/10 to 10A)

Specifications

AC Voltage Rating
250 V
Amperage Rating
10 A
Application
For supplemental protection of circuits where time-delay and blown fuse indication are required, such as solenoid circuits or control circuits.
Body Material
PolyTube
Brand Name
Mersen
Class
Midget
Connection
Ferrule
Connection Material
Tin-Plated Copper
Fuse Class
Midget
Interrupt Rating
0.2 kA
Mounting
Clip
Size
1.5 x 0.41 in
Size
38.1 x 10.312 mm
Special Features
Pin indicator provides visual indication of open fuse or actuates switch for remote signaling Numerous ratings for a wide variety of applications 12 second time-delay at 200 rating Can be used with UltraSafe™ fuse holders (1/10 - 10A) 1 1/2" x 13/32" (10 mm x 38 mm) dimensions
Standard
UL Listed to standard 248-14 (1/10 to 15A) File E33925 CSA Certified to Standard C22.2 No. 248.14 (1/10 to 15A)
Type
Midget Fuses
Type Of Indicators
Visual Indicator
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
1.5 in x 0.41 in x 0.41 in
Package Dimensions (L x W x H)
38.1 mm x 10.312 mm x 10.312 mm
Package Weight (Imperial)
0.012 lb
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.

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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.