Mersen GSF-V5 - Miniature fuse GSF-V - Time-Delay 250VAC 5A Size 5x20 Soldered connection
Mersen

GSF-V5

Alternate Item Number: GSF-V5

UPC: 782001245276

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Overview

The **Mersen GSF-V5 Miniature Fuse** (SKU: GSF-V5) is a high-performance, time-delay ceramic fuse designed for precise protection in low-to-medium voltage industrial applications. Engineered with a **250VAC voltage rating** and **5A current rating**, this fuse ensures reliable operation in circuits where transient surges or inrush currents are common. Its **5x20mm ceramic body** provides superior thermal stability and arc resistance, making it ideal for harsh environments where reliability is critical. The **soldered axial lead connection** ensures secure mounting, while the **time-delay characteristic** allows brief overloads without nuisance tripping—perfect for applications with motor starts, capacitor charging, or inductive loads. Miniature fuses like the GSF-V5 are essential components in **electrical distribution panels, control systems, and sensitive electronic equipment**, where overcurrent protection is non-negotiable. Mersen, a global leader in electrical protection solutions, has designed this fuse to meet stringent industrial standards, ensuring compatibility with a wide range of systems. The **ceramic construction** enhances durability, resisting moisture, vibration, and extreme temperatures, which is particularly valuable in **automotive, aerospace, telecommunications, and industrial automation** sectors. **Key Applications & Industry Use Cases:** - **Motor Protection:** Safeguards motors from overloads during startup or stall conditions, preventing costly downtime. - **Power Supplies:** Shields sensitive electronics from inrush currents in SMPS (Switch-Mode Power Supplies) and battery chargers. - **Control Circuits:** Provides backup protection in PLCs (Programmable Logic Controllers) and relay systems. - **Telecom Infrastructure:** Protects base stations, routers, and data centers from transient faults. - **Industrial Machinery:** Ensures safe operation in CNC machines, robotics, and conveyor systems. **Why Choose Mersen GSF-V5?** Mersen’s reputation for innovation and quality makes the GSF-V5 a trusted choice among engineers and technicians. The **time-delay feature** is particularly advantageous in applications where temporary overloads are expected, such as in **transformers, solenoids, or heating elements**, where a standard fast-acting fuse would cause unnecessary interruptions. The **axial lead design** simplifies installation in tight spaces, and the **5x20mm form factor** ensures compatibility with standard fuse holders and clips. **Installation & Selection Considerations:** When selecting a fuse like the GSF-V5, professionals must consider the **voltage and current ratings**, **response time (time-delay vs. fast-acting)**, and **environmental conditions**. The GSF-V5’s **250VAC rating** makes it suitable for most low-voltage industrial systems, while its **5A rating** provides a balance between protection and operational continuity. For optimal performance, ensure the fuse is installed in a **well-ventilated area** to prevent heat buildup, and always verify compatibility with the fuse holder’s specifications. Mersen’s GSF-V5 Miniature Fuse is more than just a protective component—it’s a critical safeguard for systems where reliability and precision matter. Whether you’re designing a new control panel, retrofitting existing equipment, or ensuring compliance with safety standards, this fuse delivers the performance and durability expected from a world-class manufacturer. Trust Mersen to keep your operations running smoothly, even in the most demanding conditions.
  • 250VAC voltage rating for low-to-medium voltage industrial applications
  • 5A current rating with time-delay characteristic for transient overload protection
  • Ceramic body (5x20mm) for superior thermal stability and arc resistance
  • Soldered axial leads for secure mounting in tight spaces
  • Trusted by Mersen, a global leader in electrical protection solutions

Specifications

AC Voltage Rating
250 V
Amperage Rating
5 A
Application
Electronic circuits
Brand Name
Mersen
Case
Ceramic
Case Material
Ceramic
Class
Supplemental
Connection
Soldered connection
Mounting
Surface
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
Special Features
Ceramic body Time-delay 5 mm x 20 mm 1-1/2" Axial leads
Standard
1/2A through 8/10A, 250VAC 1A through 6-3/10A, 250VAC, SEMKO, VDE Approved 1A through 10A, 250VAC, UL and CSA Recognized IEC-127-2 Standard Sheet 5
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
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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.