Mersen GSA1/4 - 250V Time Delay, Ceramic 1/4" x 1 1/4" 250 Volts 0.25 Amps GSA series.
Mersen

GSA1/4

Alternate Item Number: 782001764036

UPC: 782001764036

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Multiplier: 5

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Overview

The Mersen GSA1/4, SKU GSA1/4, is a premium time delay ceramic fuse engineered for robust and reliable circuit protection in demanding industrial environments. Manufactured by Mersen, a globally recognized leader in electrical protection solutions, this fuse is designed to safeguard sensitive equipment from overcurrents and short circuits while accommodating temporary inrush currents. Its precise specifications, including a 250V voltage rating and a 0.25A current rating, make it ideal for a wide array of applications where accurate and dependable protection is paramount. The construction of the GSA1/4 features a durable ceramic body, a material chosen for its excellent dielectric strength, thermal resistance, and mechanical integrity. This robust housing ensures the fuse can withstand harsh operating conditions, including elevated temperatures and potential physical impacts, without compromising its protective capabilities. The compact dimensions of 1/4" x 1 1/4" are a significant advantage, allowing for easy integration into densely populated electrical panels, control systems, and specialized equipment where space is often at a premium. This fuse belongs to Mersen's esteemed GSA series, known for its consistent performance and adherence to stringent quality standards. One of the key advantages of the GSA1/4 is its time delay characteristic. This feature is crucial for applications involving inductive loads such as motors, transformers, and solenoids. These components often experience a brief, high surge of current upon startup, known as inrush current. A fast-acting fuse would prematurely blow under these normal operating conditions, leading to unnecessary downtime and potential production interruptions. The time delay functionality of the GSA1/4 allows these temporary inrush currents to pass without activation, while still providing rapid interruption of sustained overloads and dangerous short circuits. This selective protection strategy is vital for extending the lifespan of connected equipment and ensuring operational continuity. Key specifications and benefits of the Mersen GSA1/4 include: * **Voltage Rating:** 250V AC/DC, suitable for a broad range of industrial power systems. * **Current Rating:** 0.25 Amps, precisely calibrated for specific circuit protection needs. * **Fuse Type:** Time Delay, offering superior protection for inductive loads. * **Body Material:** Ceramic, ensuring high dielectric strength and thermal stability. * **Dimensions:** 1/4" x 1 1/4", a standard and versatile size for various fuse holders. * **Series:** GSA, representing Mersen's commitment to quality and performance. * **Manufacturer:** Mersen, a trusted name synonymous with electrical safety and reliability. Industries that commonly benefit from the Mersen GSA1/4 include manufacturing, automation, telecommunications, and power distribution, where precise circuit protection is non-negotiable. Whether protecting control circuits, power supplies, or specialized instrumentation, the GSA1/4 offers peace of mind through its dependable performance. When selecting fuses, engineers and technicians rely on established brands like Mersen for their proven track record and adherence to international safety standards. The GSA1/4 fuse is an excellent choice for applications requiring a reliable, time-delay ceramic fuse with a 250V rating and a 0.25A current capacity, ensuring the integrity and longevity of your critical electrical systems.
  • Mersen GSA1/4 Time Delay Ceramic Fuse
  • 250V Voltage Rating
  • 0.25A Current Rating
  • Durable Ceramic Body Construction
  • Compact 1/4" x 1 1/4" Size

Specifications

Amperage Rating
0.25 A
Application
Electronic circuits - High currents (microwave ovens)
Brand Name
Ferraz Shawmut
Connection
Ferrule
Interrupt Rating
0.035 kA
Mounting
Clip
Special Features
Ceramic Body, Time-Delay, 1/4" X 1 1/4"
Standard
UL/CSA Std. 248-14 1/16A - 8A, 250VAC, UL Listed 10A,12A,15A, 250VAC UL Recognized 1/16A - 8A, 250VAC, CSA Certified 10A, 12A, 15A, 250VAC CSA Recognized 20A, 250VAC 25A, 30A, 125VAC
Type
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)
3.175 cm x 6.35 mm x 6.35 mm
Package Weight (Imperial)
0.006 L
Package Weight (Metric)
0.003 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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9F61 Size B Clips 1.6in

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.