Mersen S222495 - The NH system is classified among plug-in fuse systems and is composed of: • fuse-base (possibly including terminal covers and phase barriers) • fuse-link with blade contact • fuse-link replacement device (LV HRC fuse puller) Since the design of this system cannot guarantee non-interchangeability of rated current it must be handled by a qualified professional. Type gG NH fuse-links are full range breaking capacity fuse-links and are used to protect cables and equipment. They can interrupt any current surge, from the lowest fusing current up to their breaking capacity, and so can be used alone as protection. They also protect electrical devices and industrial set-ups from the electrodynamic effects of very high short-circuit currents. 500 Volts 50 Amps  gG NH00 series.
Mersen

S222495

Alternate Item Number: 8430399001111

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Overview

The Mersen S222495 gG NH00 500V 50A NH fuse-link is a full-range breaking capacity fuse designed for industrial electrical protection. Part of the NH plug-in fuse system, this fuse-link ensures reliable protection for cables and equipment by interrupting current surges from the lowest fusing current up to its breaking capacity. It is suitable for standalone protection and safeguards electrical devices and industrial setups from the electrodynamic effects of high short-circuit currents. The gG NH00 series is engineered for 500V applications with a 50A current rating, making it ideal for demanding industrial environments. Only qualified professionals should handle this system due to its non-interchangeable rated current design. The fuse-link features blade contacts for secure installation and is part of a comprehensive NH system that includes fuse-bases, terminal covers, and phase barriers. It is manufactured in the US and distributed by Gross Automation. The NH00 series is designed to meet IEC standards, ensuring compliance with international electrical safety requirements. With a breaking capacity of 50kA, this fuse-link provides robust protection against overcurrents and short circuits, making it a critical component in industrial electrical distribution systems.
  • Full-range breaking capacity fuse-link (gG type) for 500V applications
  • 50A rated current with 50kA breaking capacity for high short-circuit protection
  • Blade contact design for secure plug-in installation in NH systems
  • Part of Mersen’s NH plug-in fuse system with non-interchangeable rated current
  • Manufactured in the US, compliant with IEC standards for industrial use

Specifications

Amperage Rating
50 A
Application
gG: general purpose cable and line protection
Brand Name
Ferraz Shawmut
Connection
Blade
Connection Type
Blade Contact
Current Rating
50 A
Interrupt Rating
120 kA
Mounting
Clip
Mounting Type
Plug-in
Series
gG NH00
Size
NH00
Special Features
Dimensions according to DIN 43 620 parts 1 to 4 Non-isolated gripping lugs Double indicator Lead free contact blades 0% cadmium
Standard
DIN 57636 Part 201 VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Voltage Rating
500 VAC
Voltage Rating
500 V V
Package Dimensions (L x W x H)
3.1 IN x 1.89 IN x 1.18 IN
Package Dimensions (L x W x H)
7.874 cm x 4.8006 cm x 2.9972 cm
Package Weight (Imperial)
0.440 L
Package Weight (Metric)
0.200 kg

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.