Mersen GMS1-1/3 - Mersen GMS series alarm indicating fuses are used in telecommunications equipment or other applications. A color coded flag indicates a circuit problem which caused the fuse to blow. Nineteen ampere ratings/colors fill every replacement need 125 Volts 1.3 Amps GMS series.
Mersen

GMS1-1/3

Alternate Item Number: 782001760892

UPC: 782001760892


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Specification Sheet

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Overview

The Mersen GMS1-1/3 is a 125V, 1.3A alarm indicating fuse from the GMS series, designed for critical applications requiring rapid fault identification. This midget fuse features a visual blown fuse indicator that pops out, providing immediate confirmation of circuit failure. This feature significantly reduces troubleshooting time by eliminating the need for multimeter testing, allowing for quicker restoration of service. The GMS series offers 19 ampere ratings with distinct color coding, ensuring easy identification and replacement. The GMS1-1/3 is suitable for supplemental protection of circuits where time-delay and blown fuse indication are necessary, such as solenoid or control circuits. It conforms to midget fuse dimensions (1-1/2" x 13/32" or 10 mm x 38 mm). The fuse provides a 12-second time-delay at 200% of its rating. It is UL Listed to standard 248-14 (File E33925) and CSA Certified to Standard C22.2 No. 248. The interrupting rating is 10kA at 125VAC. This fuse is intended for supplemental protection and not for branch circuit protection. Its construction ensures reliability in demanding environments. The GMS1-1/3 is an ideal choice for telecommunications equipment, industrial control systems, and power distribution networks where operational continuity is paramount.
  • Visual blown fuse indicator for rapid fault identification
  • 125V AC, 1.3A rating
  • Midget fuse dimensions: 1-1/2" x 13/32" (10 mm x 38 mm)
  • 10kA interrupting rating at 125VAC
  • UL Listed to standard 248-14 and CSA Certified

Specifications

Amperage Rating
1.3 A
Brand Name
Ferraz Shawmut
Current Rating
1.3 A
Interrupt Rating
.3 kA
Mounting
Clip
Series
GMS
Special Features
Color coded Body material PPS UL 94V0
Type
Telecommunications Fuses
Type Of Indicators
Colored indicator flag
Voltage Rating
125 VAC
Package Dimensions (L x W x H)
0.722 IN x 0.638 IN x 0.126 IN
Package Dimensions (L x W x H)
18.3388 mm x 16.2052 mm x 3.2004 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.

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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.