Mersen GSB1/4 - 250V Fast Acting Glass 5mm x 20mm 250 Volts 0.25 Amps GSB series.
Mersen

GSB1/4

Alternate Item Number: 782001764777

UPC: 782001764777

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Minimum Qty: 5

Multiplier: 5

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Overview

The Mersen GSB1/4 is a critical component for ensuring the safety and reliability of electronic and industrial equipment. As a fast-acting glass fuse from the esteemed GSB series, this particular model offers robust protection against overcurrent and short-circuit conditions. Its precise specifications, including a 250V voltage rating and a 0.25A current rating, make it suitable for a wide array of sensitive applications where rapid response is paramount. The compact 5mm x 20mm form factor allows for easy integration into various circuit designs and enclosures. Mersen is a globally recognized leader in electrical protection solutions, and the GSB series exemplifies their commitment to quality and performance. This fast-acting fuse is engineered to interrupt the circuit almost instantaneously when an excessive current flows, thereby preventing damage to downstream components, reducing the risk of fire, and ensuring operational continuity. Its glass construction provides visual indication of a blown fuse, simplifying troubleshooting and maintenance procedures. Key applications for the Mersen GSB1/4 fuse include, but are not limited to: * **Power Supplies:** Protecting sensitive internal components from voltage spikes and current surges. * **Control Circuits:** Safeguarding delicate control electronics in industrial automation and machinery. * **Consumer Electronics:** Ensuring the safety of internal circuitry in various electronic devices. * **Test and Measurement Equipment:** Providing reliable protection for high-precision instruments. * **Telecommunications:** Maintaining the integrity of communication systems. The selection of the correct fuse is a fundamental aspect of electrical system design. Professionals rely on fuses like the Mersen GSB1/4 for their predictable performance and adherence to stringent industry standards. The fast-acting nature of this fuse is crucial in applications where even brief overcurrents can cause irreparable harm. Its 250V rating is suitable for many standard AC and DC power systems, while the 0.25A rating is ideal for low-power circuits and components. When specifying fuses, engineers consider factors such as voltage rating, current rating, interrupting capacity, and response time. The Mersen GSB1/4 excels in providing rapid interruption, a critical characteristic for protecting sensitive semiconductor devices and other delicate electronic parts. Its durable glass body and robust internal construction ensure longevity and consistent performance even in demanding industrial environments. Trust in Mersen's decades of expertise to deliver dependable circuit protection solutions for your most critical applications. The GSB1/4 is more than just a fuse; it's a vital safeguard for your valuable equipment.
  • Fast-acting interruption for rapid overcurrent protection
  • 250V AC/DC voltage rating suitable for diverse applications
  • 0.25A current rating ideal for low-power sensitive circuits
  • Compact 5mm x 20mm glass fuse construction
  • Mersen GSB series for proven reliability and performance

Specifications

Amperage Rating
0.25 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Current Rating
0.25A
Interrupt Rating
0.035 kA
Material
Glass
Mounting
Clip
Series
GSB
Size
5mm x 20mm
Special Features
Glass Body Fast Acting 5mm x 20mm GSB-V fuses have 1-1/2" wire lead each end.
Standard
UL Recognized, 250VAC, 1/32 - 10A. CSA Recognized, 250VAC, 1/32 - 10A. SEMKO Approved, 250VAC, 1/32 - 6-3/10. BSI Approved, 250VAC, 4/10 - 6-3/10A. VDE Approved, 250VAC, 5/100 - 6-3/10A, IEC 127-2 Sheet 2
Type
5 X 20 mm miniature fuses
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
0.787 IN x 0.2 IN x 0.2 IN
Package Dimensions (L x W x H)
19.9898 mm x 5.08 mm x 5.08 mm
Package Weight (Imperial)
0.005 L
Package Weight (Metric)
0.002 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.