Mersen GSB1/10 - 250V Fast Acting Glass 5mm x 20mm 250 Volts 0.1 Amps GSB series.
Mersen

GSB1/10

Alternate Item Number: 782001764739

UPC: 782001764739

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Minimum Qty: 5

Multiplier: 5

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Overview

The **Mersen GSB1/10** is a high-performance, fast-acting glass fuse engineered for precise overcurrent protection in industrial and electronic applications. Designed with a **250V voltage rating** and a **0.1A current rating**, this **5mm x 20mm** fuse is a compact yet robust solution for safeguarding sensitive electronic circuits, control systems, and power supplies. Part of Mersen’s trusted **GSB series**, this fuse combines durability, reliability, and rapid response to minimize equipment damage and ensure operational safety in demanding environments. Fast-acting fuses like the **GSB1/10** are critical in applications where immediate interruption of overcurrent is essential to prevent catastrophic failure. Unlike slow-blow fuses, which allow temporary surges, this fuse reacts instantly to fault conditions, making it ideal for protecting delicate components such as microcontrollers, sensors, and low-power control boards. The **glass body** of the GSB1/10 provides superior insulation and visibility, allowing technicians to quickly inspect the fuse for signs of failure—such as a blown filament—without disassembly. The **GSB series** is widely adopted across industries including telecommunications, automotive electronics, industrial automation, and renewable energy systems. In telecom applications, for example, these fuses protect power distribution units (PDUs) and rectifiers from transient overcurrents that could disrupt network operations. In automotive electronics, they safeguard control modules and infotainment systems from short circuits caused by wiring faults or component failures. For renewable energy systems, such as solar inverters, the GSB1/10 ensures that sensitive power electronics remain protected during grid fluctuations or fault conditions. Installation and selection of the **Mersen GSB1/10** are straightforward, thanks to its standardized **5mm x 20mm** form factor, which is compatible with most fuse holders and panels. Professionals should ensure the fuse’s voltage and current ratings match the circuit requirements—**250V and 0.1A** in this case—to avoid nuisance tripping or inadequate protection. Mersen’s reputation for engineering high-quality protection components ensures that the GSB1/10 meets stringent safety standards, including UL and IEC certifications, providing peace of mind in critical applications. Beyond its technical specifications, the **GSB1/10** exemplifies Mersen’s commitment to innovation in fuse technology. The company’s decades of experience in electrical protection solutions have made it a preferred partner for engineers and procurement teams worldwide. Whether deployed in a compact control panel or a large-scale industrial system, the GSB1/10 delivers consistent performance, reducing downtime and maintenance costs while enhancing system reliability. For applications where precision and speed are non-negotiable, the **Mersen GSB1/10** stands as a dependable choice.
  • 250V voltage rating for high-power applications
  • 0.1A current rating for sensitive circuit protection
  • Fast-acting response minimizes equipment damage
  • 5mm x 20mm glass fuse for compact installations
  • Glass body enables easy visual inspection of failure
  • UL and IEC certified for global compliance
  • Ideal for telecom, automotive, industrial, and renewable energy systems
  • Part of Mersen’s trusted GSB series for industrial reliability

Specifications

Amperage Rating
0.1 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Interrupt Rating
0.035 kA
Mounting
Clip
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.

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.