Mersen GSB-V630/1000 - Miniature fuse GSB-V - Fast-Acting 250VAC 0.63A Size 5x20 Soldered connection
Mersen

GSB-V630/1000

Alternate Item Number: GSB-V630/1000

UPC: 782001780098

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Overview

The Mersen GSB-V630/1000 miniature fast-acting fuse is a precision-engineered protective component designed for low-voltage circuit applications where rapid response to overcurrent conditions is critical. Part of Mersen's renowned GSB-V series, this 5x20mm glass fuse combines high reliability with compact form factor, making it ideal for space-constrained industrial and commercial equipment. Rated at 250VAC with a 0.63A current rating, the GSB-V630/1000 provides precise protection for sensitive electronics while maintaining robust performance in harsh operating environments. Engineered for fast-acting response, this fuse interrupts fault currents within milliseconds to prevent damage to downstream components. The glass body construction allows visual inspection of the fuse element, enabling quick verification of operational status without disassembly. With axial leads and soldered connections, the GSB-V630/1000 ensures secure mounting in PCB assemblies, power supplies, and control panels where vibration resistance and electrical integrity are paramount. Typical applications span across multiple industries where compact protection is essential. In telecommunications equipment, these fuses safeguard sensitive circuitry from transient surges. Industrial automation systems rely on GSB-V series fuses to protect PLCs, sensors, and motor controllers from overload conditions. Consumer electronics manufacturers incorporate these fuses in power adapters, LED drivers, and battery management systems where space constraints demand miniature solutions. The 0.63A rating makes it particularly suitable for low-power control circuits, instrumentation, and measurement devices. Professionals select Mersen's GSB-V series for its proven track record in critical applications. Mersen, a global leader in electrical protection solutions since 1925, designs these fuses to meet stringent international standards including IEC 60127-2. The fast-acting characteristic ensures rapid clearing of faults while minimizing thermal stress on protected components. Installation requires careful consideration of ambient temperature, as excessive heat can derate the fuse's performance. Engineers typically mount these fuses in fuse holders or directly on PCBs, ensuring proper clearance from adjacent components to maintain cooling airflow. The GSB-V630/1000's combination of precision rating, fast response, and compact design makes it a preferred choice for OEMs and system integrators. Its compatibility with standard 5x20mm fuse holders eliminates installation complexity, while the soldered connection provides permanent, vibration-resistant mounting. For applications requiring UL/CSA certification, Mersen offers certified versions of this fuse family. When specifying protection components, professionals trust Mersen's expertise in electrical safety, backed by decades of innovation in fuse technology and comprehensive global support networks.
  • Fast-acting response for rapid fault current interruption
  • 250VAC voltage rating with 0.63A current rating
  • 5x20mm glass body with axial leads for compact installations
  • Soldered connection for secure PCB mounting
  • Part of Mersen's trusted GSB-V series with global certification

Specifications

AC Voltage Rating
250 V
Amperage Rating
0.63 A
Application
Electronic circuits
Brand Name
Mersen
Case
Glass
Case Material
Glass
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
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 0.63A Size 5x20 Soldered connection

GDG-V630/1000

Miniature fuse GDG-V - Time-Delay 250VAC 0.63A Size 5x20 Soldered connection
SLO-BLO GLASS INDICA H-PACK .500A. 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.

0313.500HXIDP

SLO-BLO GLASS INDICA H-PACK .500A. 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.