Mersen S1000079 - DIN NH Standard fuse-link gG Size NH4 690VAC 500A live tags Striker Body width 100.10 mm
Mersen

S1000079

Alternate Item Number: NH4GG69V500P-2


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Specification Sheet

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Overview

The Mersen S1000079 is a DIN NH Standard fuse-link, specifically a gG type in Size NH4, designed for robust protection in industrial electrical systems. Rated for 690VAC and 500A, this fuse-link offers full-range breaking capacity, capable of interrupting any current surge from the lowest fusing current up to its breaking capacity. This makes it suitable for use as sole protection for cables and equipment, as well as for safeguarding electrical devices and industrial setups from the electrodynamic effects of very high short-circuit currents. Key specifications include a rated voltage of 690V AC (IEC) and 250V DC (IEC), a rated current of 500A, and a power dissipation of 38W at In. The fuse-link features live gripping-lugs and a striker mechanism for enhanced safety and operational indication. Its body width is 100 mm, and it weighs 2.1 kg per package. Manufactured by Mersen in France, this NH fuse-link is part of the NH system, which comprises a fuse-base, fuse-link with blade contact, and a fuse-link replacement device. Due to the system's design, which does not guarantee non-interchangeability of rated current, it must be handled by a qualified professional. SKU: S1000079.
  • Mersen NH4GG69V500 Fuse-link
  • Rated Voltage: 690V AC (IEC) / 250V DC (IEC)
  • Rated Current: 500A
  • Type: gG (Full Range Breaking Capacity)
  • Features: Live Gripping-Lugs, Striker, Middle Indicator

Specifications

AC Voltage Rating
690 V
Amperage Rating
500 A
Application
gG: general purpose cable and line protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Interrupt Rating
120 kA
Mounting
Clip
Size
7.85 x 3.94 x 4.61 in
Size
199.5 x 100 x 117 mm
Special Features
Dimensions according to DIN 43 620 Parts 1 to 4 Lead free contact blades 0 cadmium
Standard
VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Type Of Indicators
Striker
Package Dimensions (L x W x H)
7.85 in x 3.94 in x 4.61 in
Package Dimensions (L x W x H)
199.5 mm x 100 mm x 117 mm
Package Weight (Imperial)
4.850 lb
Package Weight (Metric)
2.200 kg

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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.