Mersen X229744 - DIN NH Standard fuse-link gG Size NH1 690VAC 400VDC 35A isolated tags Double indicator Body width 30 mm
Mersen

X229744

Alternate Item Number: NH1GG69V35-1


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Specification Sheet

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Overview

The Mersen X229744 is a DIN NH Standard fuse-link, specifically a gG type, engineered for robust industrial electrical protection. This fuse-link is meticulously designed to operate within a voltage range of 690VAC and 400VDC, providing dependable overcurrent protection with a rated current of 35A. Its NH1 size ensures it fits seamlessly into compatible NH fuse bases. For enhanced safety during maintenance and replacement, the X229744 incorporates isolated tags. These isolated tags are a critical safety feature, minimizing the risk of accidental contact with live components. Furthermore, the fuse-link is equipped with a double indicator system. This dual indicator provides a clear and immediate visual confirmation of the fuse-link's operational status. A green indicator signifies that the fuse-link is intact and functioning correctly, while a red indicator clearly signals that the fuse-link has blown due to an overcurrent event. The body of the X229744 measures 30 mm in width. This standardized body width is crucial for ensuring compatibility with standard NH fuse bases, facilitating its integration as a direct replacement within existing NH1 systems. This fuse-link is an integral part of the broader DIN NH plug-in system, a comprehensive solution for electrical protection that typically includes the fuse-base, blade contacts, and essential replacement tools such as the LV HRC fuse puller. It is important to note that due to inherent design constraints within fuse-link systems, rated current interchangeability is not guaranteed. Therefore, the installation of this fuse-link must always be performed by a qualified professional to ensure correct application and safety. The Mersen X229744 is ideally suited for demanding applications such as motor circuits, distribution panels, and various types of industrial machinery where precise fault detection and a high interrupting capacity are paramount for operational continuity and equipment safety. This fuse-link adheres to DIN standards specifically for NH fuse-links, guaranteeing consistent and reliable performance even in challenging industrial environments.
  • Rated for 690VAC and 400VDC operation
  • 35A current rating with gG characteristics
  • Double indicator for clear status signaling (green/red)
  • 30mm body width compatible with NH1 fuse bases
  • Isolated tags for safe handling and installation

Specifications

AC Voltage Rating
690 V
Amperage Rating
35 A
Application
gG: general purpose cable and line protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Connection Type
isolated tags
Current Rating
35A
DC Voltage Rating
400 V
Interrupt Rating
80 kA
Mounting
Clip
Mounting Type
Plug-in (NH fuse system)
Mounting Type
Plug-in
Series
DIN NH Standard
Series
GG
Series
NH
Series
NH1
Size
NH1, 30mm
Size
NH1, 30 mm body width
Size
NH1
Size
5.31 x 1.18 x 2.52 in
Size
135 x 30 x 64 mm
Special Features
Dimensions according to DIN 43 620 Parts 1 to 4 Isolated metal gripping lugs (SGL) 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
690 VAC
Package Dimensions (L x W x H)
5.31 in x 1.18 in x 2.52 in
Package Dimensions (L x W x H)
135 mm x 30 mm x 64 mm
Package Weight (Imperial)
0.639 lb
Package Weight (Metric)
0.290 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.

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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.

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.