Mersen GSC1-1/4 - Miniature fuse GSC - Time-Delay 250VAC 1.25A Size 5x20 Ferrule
Mersen

GSC1-1/4

Alternate Item Number: GSC1-1/4

UPC: 782001761172

Contact for Pricing

Minimum Qty: 5

Multiplier: 5

*Contact for lower quantities*

Overview

The Mersen GSC1-1/4 is a high-quality miniature fuse designed for reliable overcurrent protection in a wide range of electronic and industrial applications. Engineered with a time-delay characteristic, this fuse offers superior performance by allowing temporary inrush currents without nuisance tripping, while still providing rapid interruption of dangerous fault currents. The GSC series from Mersen is renowned for its robust construction and consistent performance, making it a trusted choice for engineers and technicians seeking dependable circuit protection. Constructed with a durable glass and ceramic body, the GSC1-1/4 fuse is built to withstand demanding operational environments. Its compact 5mm x 20mm size and ferrule connection type ensure compatibility with numerous standard fuse holders and equipment designs. This fuse is rated for a maximum voltage of 250 VAC and a current of 1.25 A, making it suitable for protecting sensitive electronic components, power supplies, control circuits, and various other low-voltage equipment. Key features of the Mersen GSC1-1/4 miniature fuse include: * **Time-Delay Operation:** Effectively handles temporary current surges, reducing unnecessary downtime and maintenance. * **250 VAC Voltage Rating:** Suitable for a broad spectrum of AC power applications. * **1.25 A Current Rating:** Provides precise overcurrent protection for specific circuit requirements. * **5mm x 20mm Size:** A standard and widely accepted form factor for easy integration. * **Ferrule Connection:** Ensures secure and reliable electrical contact. * **Glass/Ceramic Construction:** Offers excellent dielectric strength and thermal resistance. The Mersen GSC series fuses are integral components in protecting valuable equipment from damage caused by short circuits and overloads. Their time-delay functionality is particularly beneficial in applications involving motors, transformers, or other inductive loads where momentary high current draws are common during startup. By selectively allowing these brief surges while reacting swiftly to sustained overcurrents, the GSC1-1/4 fuse helps to maintain operational continuity and extend the lifespan of protected devices. Industries that commonly utilize Mersen GSC miniature fuses include telecommunications, industrial automation, medical equipment, consumer electronics, and power distribution systems. The reliability and performance of Mersen products are backed by decades of experience in electrical protection solutions. When selecting a fuse, it is crucial to match the voltage and current ratings to the specific requirements of the circuit to ensure optimal safety and protection. The GSC1-1/4, with its precise specifications and time-delay capabilities, offers a dependable solution for critical circuit protection needs.
  • Mersen GSC Miniature Fuse, SKU GSC1-1/4
  • Time-Delay characteristic for robust overcurrent protection
  • 250 VAC voltage rating and 1.25 A current rating
  • Compact 5mm x 20mm size with ferrule connection
  • Durable glass and ceramic construction for enhanced reliability

Specifications

AC Voltage Rating
250 V
Amperage Rating
1.25 A
Application
Electronic circuits
Brand Name
Mersen
Case
Glass / Ceramic
Class
Supplemental
Connection
Ferrule
Mounting
Clip
Size
0.79 x 0.2 in
Size
20.066 x 5.08 mm
Special Features
Glass / ceramic body Time-delay 5 mm x 20 mm
Standard
1/10A through 3A, 250VAC, UL Listed and CSA Certified 4A through 8A, 125VAC, UL Listed and CSA Certified 10A, 125VAC, UL and CSA Recognized
Type
5x20mm
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
0.79 in x 0.2 in x 0.2 in
Package Dimensions (L x W x H)
20.066 mm x 5.08 mm x 5.08 mm
Package Weight (Imperial)
0.010 lb
Package Weight (Metric)
0.005 kg
Miniature fuse GGA - Time-Delay 250VAC 1.25A Size 5x20 Ferrule

GGA1-1/4

Miniature fuse GGA - Time-Delay 250VAC 1.25A Size 5x20 Ferrule
SLO-BLO GLASS AXIAL V-PACK 1A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: 313 and 315 series fuses have time-delayed in the overload range, which provides superior protection inductive loads such as motors, transformers, and solenoids. 3AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 3AG fuse design.

0313001.VXIDP

SLO-BLO GLASS AXIAL V-PACK 1A. The 3AG Slo-Blo® fuse solves a broad range of application requirements while offering reliable performance and costeffective circuit protection. Features: 313 and 315 series fuses have time-delayed in the overload range, which provides superior protection inductive loads such as motors, transformers, and solenoids. 3AG indicating fuses instantly identify themselves upon opening by showing a discoloration of their glass bodies. Guesswork and time-consuming circuit testing is eliminated. This unique design offers the same quality performance characteristics as the standard 3AG fuse design.

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.