Mersen GSB-V5 - Miniature fuse GSB-V - Fast-Acting 250VAC 5A Size 5x20 Soldered connection
Mersen

GSB-V5

Alternate Item Number: GSB-V5

UPC: 782001780180

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Overview

The Mersen GSB-V5 miniature fuse is a high-performance, fast-acting protection device engineered for precision circuit safeguarding in industrial and commercial applications. Designed with a 5x20mm glass body and axial soldered leads, this 5A fuse delivers reliable overcurrent protection at 250VAC, making it an ideal choice for sensitive electronic equipment and control systems where rapid response to fault conditions is critical. As part of Mersen’s esteemed GSB-V series, this fuse combines decades of expertise in electrical protection with rigorous quality standards, ensuring consistent performance in demanding environments. Key features of the GSB-V5 include its fast-acting response time, which minimizes damage to downstream components by interrupting fault currents almost instantaneously. The glass body provides excellent visibility for inspection while offering robust dielectric strength and thermal stability. The 5x20mm form factor is a global standard for miniature fuses, ensuring compatibility with a wide range of fuse holders, panels, and equipment designs. With soldered axial leads, the GSB-V5 ensures secure electrical connections and long-term reliability, even in applications subject to vibration or thermal cycling. This fuse is particularly well-suited for applications in power supplies, instrumentation, telecommunications equipment, and industrial control panels. In power supply units, the GSB-V5 protects transformers and rectifiers from overloads, while in instrumentation, it safeguards sensitive measurement circuits from transient spikes. Telecommunications systems rely on fast-acting fuses like the GSB-V5 to protect sensitive ICs and signal lines from inrush currents or short circuits. Industrial automation systems, including PLCs and motor controllers, benefit from its ability to isolate faults quickly, preventing cascading failures that could disrupt production lines. Selecting the right miniature fuse involves balancing current rating, voltage rating, and response time with the specific requirements of the application. The GSB-V5’s 5A rating makes it suitable for low-to-moderate current circuits, while its 250VAC rating ensures compatibility with common industrial and commercial power systems. Fast-acting fuses like this are preferred in circuits where even minor overcurrents could damage components, such as in semiconductor devices or high-frequency power converters. When installing the GSB-V5, professionals should ensure proper fuse holder compatibility, adequate clearance for heat dissipation, and adherence to electrical codes and standards. Mersen, a global leader in electrical protection and thermal management solutions, has built a reputation for innovation and reliability since its inception. The company’s GSB-V series fuses are trusted by engineers worldwide for their consistent performance, long service life, and adherence to international safety standards. Whether deployed in harsh industrial environments or precision electronic systems, Mersen fuses provide the peace of mind that comes from knowing your equipment is protected by a brand synonymous with quality. For applications requiring fast-acting, high-reliability overcurrent protection, the Mersen GSB-V5 miniature fuse stands as a proven solution.
  • 5A current rating with 250VAC voltage rating for precise overcurrent protection
  • Fast-acting response to minimize damage from fault currents
  • 5x20mm glass body with axial soldered leads for robust connections
  • Compatible with standard fuse holders and industrial control systems
  • Trusted Mersen quality for reliable performance in demanding environments

Specifications

AC Voltage Rating
250 V
Amperage Rating
5 A
Application
Electronic circuits
Brand Name
Mersen
Case
Glass
Case Material
Glass
Class
Supplemental
Connection
Soldered connection
Connection Type
Soldered
Current Rating
5 A
Material
Glass
Mounting
Surface
Series
GSB-V
Size
3.83 x 0.2 in
Size
97.282 x 5.08 mm
Size
3.83 x 0.2;97.282 x 5.08 in;mm
Size
5x20 mm
Special Features
Glass body Fast-acting 5 mm x 20 mm 1-1/2" Axial leads
Standard
1/2A through 10A, 250VAC, UL and CSA Recognized 1/2A through 6-3/10A, 250VAC, SEMKO Approved 1/2A through 6-3/10A, 250VAC, VDE Approved IEC-127-2 Standard Sheet 2
Type
5x20mm
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
3.83 in x 0.2 in x 0.2 in
Package Dimensions (L x W x H)
97.282 mm x 5.08 mm x 5.08 mm
Package Weight (Imperial)
0.010 lb
Package Weight (Metric)
0.005 kg
Miniature fuse GDG-V - Time-Delay 250VAC 5A Size 5x20 Soldered connection

GDG-V5

Miniature fuse GDG-V - Time-Delay 250VAC 5A Size 5x20 Soldered connection
SLO-BLO GLASS AXIAL V-PACK 5A. 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.

0313005.VXIDP

SLO-BLO GLASS AXIAL V-PACK 5A. 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.