Mersen GDG-V6-3/10 - Miniature fuse GDG-V - Time-Delay 250VAC 6.3A Size 5x20 Soldered connection
Mersen

GDG-V6-3/10

Alternate Item Number: GDG-V6-3/10

UPC: 782001768317

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Overview

The Mersen GDG-V6-3/10 miniature time-delay fuse is a high-performance protection component engineered for critical applications where transient overloads must be tolerated without nuisance tripping. Designed with a 6.3A rating at 250VAC, this 5x20mm glass fuse features a time-delay characteristic, making it ideal for circuits with inrush currents such as motors, transformers, and capacitive loads. The soldered axial lead connection ensures reliable electrical contact and mechanical stability in compact installations, while the miniature form factor supports space-constrained designs common in industrial control panels, power supplies, and instrumentation systems. Mersen, a global leader in electrical protection and thermal management solutions, has engineered the GDG-V6-3/10 to meet stringent international standards, including IEC 60127-2 for miniature fuses. This fuse is part of the GDG-V series, which is widely recognized for its consistent performance in harsh environments where temperature fluctuations, vibration, and electrical noise are present. The time-delay design allows the fuse to withstand brief overloads—such as those generated during equipment startup—without interrupting operation, thereby enhancing system reliability and reducing downtime. Typical applications for the GDG-V6-3/10 include industrial automation systems, where it protects control circuits and PLC I/O modules from short circuits and overloads. It is also commonly used in power conversion equipment, such as inverters and UPS systems, where transient surges can occur during switching events. The 5x20mm size is a global standard, ensuring compatibility with a wide range of fuse holders and panels, including those from other manufacturers. Installation is straightforward: the fuse is inserted into a compatible holder or soldered directly onto a PCB, with axial leads providing flexibility in orientation and routing. Selecting the right fuse involves considering both the steady-state current and the transient characteristics of the load. The 6.3A rating of the GDG-V6-3/10 makes it suitable for protecting low-power control circuits, sensors, and communication interfaces, while the 250VAC rating ensures compatibility with common industrial control voltages. Time-delay fuses like this one are preferred in applications where momentary surges are expected, as they prevent unnecessary fuse replacement and improve operational continuity. Mersen’s reputation for quality and innovation in electrical protection is backed by decades of experience in serving industries such as energy, transportation, and manufacturing, where reliability is non-negotiable. For professionals specifying or replacing fuses, the GDG-V6-3/10 offers a balance of performance, durability, and ease of integration. Its glass body provides visual indication of failure, and the soldered leads ensure a secure connection that resists vibration and thermal cycling. Whether used in new designs or as a replacement in existing systems, this fuse delivers consistent protection and peace of mind. Trust Mersen for industrial-grade electrical protection solutions that keep systems safe, efficient, and operational.
  • 6.3A current rating at 250VAC for low-power circuit protection
  • Time-delay design tolerates transient inrush currents without nuisance tripping
  • 5x20mm miniature glass fuse with axial leads for compact installations
  • Soldered connection ensures reliable electrical contact and mechanical stability
  • IEC 60127-2 compliant, ideal for industrial control panels and power supplies

Specifications

AC Voltage Rating
250 V
Amperage Rating
6.3 A
Application
Electronic circuits
Brand Name
Mersen
Case
Glass
Case Material
Glass
Class
Supplemental
Connection
Soldered connection
Connection Type
Soldered
Current Rating
6.3A
Material
Glass
Mounting
Surface
Series
GDG-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
Special Features
Glass body Time-delay 5 mm x 20 mm 1-1/2" Axial leads
Standard
1/16A through 10A, 250VAC, UL & CSA Recognized 1/16A through 6-3/10A, 250VAC, SEMKO Approved 1/16A through 6-3/10A, 250VAC, VDE Approved IEC 127-2 Standard Sheet 3
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 GSB-V - Fast-Acting 250VAC 6.3A Size 5x20 Soldered connection

GSB-V6-3/10

Miniature fuse GSB-V - Fast-Acting 250VAC 6.3A Size 5x20 Soldered connection
SLO-BLO GLASS AXIAL V-PACK 6.25A. 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.

03136.25VXIDP

SLO-BLO GLASS AXIAL V-PACK 6.25A. 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.