Mersen B219237 - Cylindrical fuse-link gG Size 14x51 IEC 500VAC 20A With Striker
Mersen

B219237

Alternate Item Number: FR14GG50V20P

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Minimum Qty: 10

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Overview

The Mersen B219237 cylindrical fuse-link (SKU: B219237) is a gG-rated ferrule fuse designed for low-voltage industrial applications. Rated at 20A with a 500VAC operating voltage, this fuse-link provides reliable overcurrent and short-circuit protection in electrical distribution circuits. The 14x51mm ceramic body ensures high mechanical strength and thermal stability, while silver-plated contacts deliver consistent electrical performance and corrosion resistance. Key specifications include a rated breaking capacity of 120kA, ensuring robust protection against fault currents in industrial networks. The integrated striker mechanism activates auxiliary contacts upon fuse operation, enabling remote signaling for system monitoring and safety interlocks. Power dissipation at rated current is 2.75W, with a total weight of 21g. This fuse-link is part of Mersen’s IEC-compliant cylindrical fuse system, compatible with standard 14x51mm fuse holders. It is ideal for protecting cables, motors, and low-voltage networks in industrial environments such as manufacturing plants, power distribution systems, and renewable energy installations. The gG classification ensures full-range breaking capacity, providing comprehensive protection against overloads and short circuits.
  • Rated current: 20A at 500VAC
  • Breaking capacity: 120kA
  • Size: 14x51mm cylindrical ferrule design
  • Features striker for auxiliary contact activation
  • Ceramic body with silver-plated contacts for reliability

Specifications

AC Voltage Rating
500 V
Amperage Rating
20 A
Application
gG type for protection of line, cable against overload and short circuit in various industrial application and electrical distribution circuits.
Body Material
Ceramic
Brand Name
Mersen
Connection
Ferrule
Connection Material
Silver-Plated Copper
DC Voltage Rating
250 V
Interrupt Rating
120 kA
Mounting
Clip
Size
2.01 x 0.56 in
Size
51 x 14.3 mm
Special Features
Reduced size Full range protection Striker version available for remote indication of fuse operation Safest and most reliable protection system
Standard
IEC 60269-1 & -2 Approved by Lloyd's Register of Shipping and Bureau Veritas
Type
IEC Cylindrical Fuse-Links
Type Of Indicators
Striker
Voltage Rating
500 VAC
Package Dimensions (L x W x H)
2.01 in x 0.56 in x 0.56 in
Package Dimensions (L x W x H)
51 mm x 14.3 mm x 14.3 mm
Package Weight (Imperial)
0.046 lb
Package Weight (Metric)
0.021 kg
Cylindrical fuse-link aM Size 10x38 IEC 500VAC 16A

F214618

Cylindrical fuse-link aM Size 10x38 IEC 500VAC 16A

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.