Mersen V1028693 - DIN NH Standard fuse-link gTr Size NH2 400VAC 144A 100KVA live tags Center indicator Body width 40 mm
Mersen

V1028693

Alternate Item Number: NH2GTR100KVA


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Specification Sheet

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Overview

The Mersen V1028693 is a DIN NH Standard fuse-link, size NH2, designed specifically for transformer protection applications. It features a gTr time/current characteristic, which is optimized for the thermal behavior of protected transformers, ensuring improved selectivity compared to standard gG fuse-links. This fuse-link is rated for 400VAC operation with a nominal current of 144A and a breaking capacity of 100 kVA, making it suitable for medium-voltage transformer circuits. The design includes live tags to facilitate safe handling by qualified professionals during installation or replacement, and a center indicator for clear visual status indication of the fuse condition. The body width of the fuse-link is 40 mm, complying with DIN NH Standard dimensions for NH2 size fuse-links. The gTr characteristic allows for continuous loading up to 1.3 times the nominal current (187.2A) for up to 10 hours without interruption, while it is designed to operate within 2 hours when subjected to 1.5 times the nominal transformer current (216A), providing robust protection without unnecessary tripping. This ensures reliable operation under transient overload conditions typical in transformer applications. The V1028693 is part of the Mersen NH system, which is a comprehensive plug-in fuse system consisting of a fuse-base, fuse-links with blade contacts, and a dedicated fuse-link replacement device. The NH system is engineered for high reliability and ease of maintenance in industrial and utility transformer protection circuits. Due to the nature of this system, all handling, installation, and replacement procedures must be performed by a qualified professional to ensure safety and correct operation. The fuse-link is manufactured in France (FR) and carries the SKU V1028693. It is classified under UNSPSC Code 39121612.
  • Mersen NH2 gTr fuse-link for transformer protection
  • Rated 144A, 400VAC, 100kVA breaking capacity
  • Live tags and center indicator for safe operation
  • Optimized selectivity with gTr time/current characteristic
  • Body width of 40 mm, manufactured in France

Specifications

AC Voltage Rating
400 V
Amperage Rating
144 A
Application
Protection of transformers
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Interrupt Rating
100 kA
Mounting
Clip
Size
5.91 x 1.57 x 2.91 in
Size
150 x 40 x 74 mm
Special Features
Maximum transformer capacity (up to 1,3 x In) Reduction of unnecessary interruption of operation Precise cut off of overload Characteristic adapted to the transformer Resistant to ageing Selectivity to fuse links gG High current limiting High breaking capacity Easy selection between transformer and fuse link
Standard
VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Type Of Indicators
Center indicator
Package Dimensions (L x W x H)
5.91 in x 1.57 in x 2.91 in
Package Dimensions (L x W x H)
150 mm x 40 mm x 74 mm
Package Weight (Imperial)
1.102 lb
Package Weight (Metric)
0.500 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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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.