Mersen GGM1/2-B - 250V,Fast Acting Glass 5mm x 20mm 250 Volts 0.5 Amps GGM (bulk packaging) series.
Mersen

GGM1/2-B

Alternate Item Number: 782001405441

UPC: 782001405441

Contact for Pricing

Overview

The Mersen GGM1/2-B is a critical component for reliable circuit protection in a wide array of industrial and electronic systems. Engineered by Mersen, a globally recognized leader in electrical protection and power management, this fast-acting glass fuse (SKU: GGM1/2-B) is designed to safeguard sensitive equipment from damaging overcurrents and short circuits. Its precise 0.5 Ampere rating and 250 Volt operational capacity make it suitable for applications where accurate and rapid fault interruption is paramount. Featuring a compact 5mm x 20mm form factor, the GGM1/2-B fuse is ideal for space-constrained designs and densely populated circuit boards. The fast-acting characteristic ensures that in the event of an overload or fault, the fuse will blow quickly, minimizing the potential for collateral damage to connected components and preventing system downtime. This rapid response is crucial in protecting delicate electronics, control systems, and power supplies from transient surges and sustained overcurrent conditions. Constructed with a durable glass body, this fuse offers excellent visibility of the fuse element, allowing for easy visual inspection to confirm if a fault has occurred. The glass construction also contributes to its robust performance and stability across a range of operating temperatures. Mersen's commitment to quality is evident in the consistent performance and reliability of their GGM series fuses, ensuring that each unit meets stringent industry standards. This specific model, the GGM1/2-B, is supplied in bulk packaging, making it an economical choice for manufacturers and service providers who require significant quantities for production runs or maintenance stock. The bulk format streamlines inventory management and reduces packaging waste, aligning with efficient operational practices. Key Specifications and Benefits: * **Voltage Rating:** 250V AC/DC, providing broad compatibility with various power systems. * **Current Rating:** 0.5A, offering precise protection for low-current circuits. * **Interrupting Rating:** While not explicitly stated, fast-acting fuses of this type typically possess a high interrupting rating suitable for most industrial applications, ensuring safety during fault conditions. * **Fuse Type:** Fast-Acting (F), essential for protecting sensitive electronic components. * **Material:** Glass body for durability and visual inspection. * **Size:** 5mm x 20mm, a standard and versatile fuse dimension. * **Series:** GGM, known for its quality and performance. * **Packaging:** Bulk, optimized for high-volume users. Applications for the Mersen GGM1/2-B fuse are extensive and include, but are not limited to, power supplies, control panels, instrumentation, telecommunications equipment, consumer electronics, and various industrial machinery. When selecting a fuse, professionals consider the operating voltage, expected current draw, and the sensitivity of the protected circuit. The Mersen GGM1/2-B is a trusted solution for engineers and technicians who demand dependable overcurrent protection and value the reputation of a leading manufacturer like Mersen for their critical safety components.
  • Mersen GGM1/2-B Fast Acting Glass Fuse
  • 250V Voltage Rating, 0.5A Current Rating
  • Standard 5mm x 20mm Size
  • Durable Glass Construction for Visual Inspection
  • Ideal for Bulk Packaging and High-Volume Applications

Specifications

Amperage Rating
0.5 A
Application
Electronic circuits
Brand Name
Ferraz Shawmut
Connection
Ferrule
Current Rating
0.5 A
Interrupt Rating
0.2 kA
Material
Glass
Mounting
Clip
Series
GGM
Size
5mm x 20mm
Special Features
Glass Body, Fast Acting
Standard
UL/CSA Std. 248-14 1/16A - 3A, 250VAC, UL Listed, CSA certified, 4A - 8A, 125VAC, UL Listed, CSA certified, 10A & 15A, 250VAC, UL Recognized RoHS Compliant
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)
0.010 L
Package Weight (Metric)
0.005 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.
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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.