Mersen GSA1-1/4 - Miniature fuse GSA - Time-Delay 250VAC 1.25A Size 6,3x32 Ferrule
Mersen

GSA1-1/4

Alternate Item Number: GSA1-1/4

UPC: 782001764104


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Overview

The Mersen GSA1-1/4 miniature fuse (SKU: GSA1-1/4) provides reliable overcurrent protection with a time-delay characteristic. Featuring a durable ceramic body and a standard 6.3x32mm (1/4" x 1-1/4") ferrule end cap, this fuse is designed for efficient integration into various industrial and electronic applications. Its 250VAC voltage rating and 1.25A current rating make it suitable for safeguarding sensitive circuits from damaging surges and faults. The time-delay functionality is crucial for applications with temporary inrush currents, such as motor starting or powering equipment with capacitive loads, preventing nuisance tripping while ensuring protection against sustained overloads and short circuits. Key specifications include: * **Type:** Miniature Fuse * **Series:** GSA * **Body Material:** Ceramic * **Characteristic:** Time-Delay * **Voltage Rating:** 250VAC * **Current Rating:** 1.25A * **Dimensions:** 6.3x32mm (1/4" x 1-1/4") * **Approvals:** UL Listed, CSA Certified (for ratings 1/2A through 8A, 250VAC) This Mersen fuse is manufactured to meet stringent industry standards, ensuring dependable operation. Applications include power supplies, control panels, industrial machinery, HVAC systems, and lighting controls. Trust Mersen for essential components that safeguard valuable equipment.
  • Time-Delay Operation for Inrush Current Handling
  • Durable Ceramic Body Construction
  • Compact 6.3x32mm (1/4" x 1-1/4") Ferrule Size
  • 250VAC Voltage Rating
  • 1.25A Current Rating
  • UL Listed and CSA Certified (for applicable ratings)

Specifications

AC Voltage Rating
250 V
Amperage Rating
1.25 A
Application
Electronic circuits
Brand Name
Mersen
Case
Ceramic
Case Material
Ceramic
Class
Supplemental
Connection
Ferrule
Connection Type
Ferrule
Current Rating
1.25A
Material
Ceramic
Mounting
Clip
Series
GSA
Size
6.3x32
Size
1.25 x 0.25;31.75 x 6.35 in;mm
Size
1.25 x 0.25 in
Size
31.75 x 6.35 mm
Special Features
Ceramic body Time-delay 1/4" x 1-1/4"
Standard
1/2A through 8A, 250VAC, UL Listed 10, 12, 15A, 250V UL Recognized 1/2A through 8A, 250VAC, CSA Certified 10, 12, 15A, 250V CSA Recognized 20A, 250VAC, 25 & 30A, 125VAC
Type
6x32mm, 1/4" X 1-1/4"
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
1.25 in x 0.25 in x 0.25 in
Package Dimensions (L x W x H)
31.75 mm x 6.35 mm x 6.35 mm
Package Weight (Imperial)
0.010 lb
Package Weight (Metric)
0.005 kg
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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.