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Mersen A222847 - DIN NH Standard fuse-link gG Size NH000 500VAC 250VDC 20A live tags Double indicator Body width 21mm
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Mersen A222847 DIN NH Standard fuse-link gG Size NH000 500VAC 250VDC 20A live tags Double indicator…

Alternate Item Number: NH000GG50V20


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Specification Sheet

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Overview

The Mersen A222847 is a DIN NH Standard fuse-link (gG type) designed for industrial electrical protection. This 20A-rated fuse operates at 500VAC and 250VDC, making it suitable for both AC and DC applications. The NH000 size ensures compatibility with standard NH fuse bases, while the 21mm body width provides a compact footprint for space-constrained installations. Key features include a double indicator system for clear visual status—red indicates conduction, and the indicator disappears after operation—enabling quick identification of fuse status without disassembly. Live gripping lugs allow safe handling and replacement by qualified personnel, reducing downtime during maintenance. The gG classification denotes full-range breaking capacity, meaning the fuse can interrupt any current surge from the lowest fusing current up to its rated breaking capacity, providing comprehensive protection for cables and equipment. This fuse-link is part of Mersen’s NH system, a plug-in fuse solution comprising a fuse-base, fuse-link with blade contacts, and a replacement device. The NH000 size supports current ratings from 6A to 100A, with the A222847 specifically rated at 20A. Its design prioritizes reliability in high-fault-current scenarios, shielding electrical systems from electrodynamic forces generated by short-circuit events. Applications include motor control centers, distribution panels, industrial machinery, and renewable energy systems where precise overcurrent protection is critical. The double indicator and live tags simplify troubleshooting and maintenance, while the compact NH000 size optimizes panel space. For systems requiring non-interchangeability of rated currents, qualified personnel must ensure proper selection and installation.
  • 20A rated current with 500VAC/250VDC voltage rating
  • DIN NH000 size for compatibility with standard NH fuse bases
  • Double indicator system for clear visual status (red = conduction)
  • Live gripping lugs for safe handling and replacement
  • gG full-range breaking capacity for comprehensive overcurrent protection

Specifications

AC Voltage Rating
500 V
Amperage Rating
20 A
Application
gG: General purpose cable and line protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
DC Voltage Rating
250 V
Interrupt Rating
120 kA
Mounting
Clip
Size
3.09 x 0.83 x 2.07 in
Size
78.5 x 21 x 52.5 mm
Special Features
Dimensions according to DIN 43 620 parts 1 to 4 Non-isolated gripping lugs Double indicator 0 cadmium
Standard
VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Type Of Indicators
Double indicator
Voltage Rating
500 VAC
Package Dimensions (L x W x H)
3.09 in x 0.83 in x 2.07 in
Package Dimensions (L x W x H)
78.5 mm x 21 mm x 52.5 mm
Package Weight (Imperial)
0.287 lb
Package Weight (Metric)
0.130 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.
9F61 Size B Clips 1.6in

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9F61 Size B Clips 1.6in

Frequently Asked Questions

What is the rated breaking capacity for these NH fuse-links?

The rated breaking capacity for these NH fuse-links (gG 500VAC) is 120 kA for AC and 80 kA for DC.

What is the operating voltage range for NH fuse-links?

These NH fuse-links are rated for 500 VAC and 250 VDC.

What are the available sizes for these NH fuse-links?

The available sizes for these NH fuse-links are 000, 00, 0, 1, 2, and 3.

What is the typical current range for size 000 fuse-links?

Size 000 NH fuse-links have a rated current range from 2 A to 100 A.

What is the typical current range for size 3 fuse-links?

Size 3 NH fuse-links have a rated current range from 63 A to 800 A.

What is the power dissipation for a 20A, size 000 fuse-link?

The power dissipation at In for a size 000, 20A fuse-link (catalog number A222847) is 2.3 W.

What applications are gG type NH fuse-links suitable for?

gG type NH fuse-links are suitable for general purpose cable and line protection.

What standards do these NH fuse-links comply with?

These NH fuse-links comply with VDE 0636 Part 201 and IEC 60269-1 and -2 standards.

What materials are the body and contacts made of?

The body material is ceramic, and the contact materials are copper, silver-plated.

Are these NH fuse-links cadmium-free?

Yes, these NH fuse-links are 0% cadmium.

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.