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Mersen A1028698 - DIN NH Standard fuse-link gTr Size NH2 400VAC 108A 75KVA live tags Top indicator Body width 40 mm

Mersen A1028698 DIN NH Standard fuse-link gTr Size NH2 400VAC 108A 75KVA live tags Top indicator Body…

Alternate Item Number: NH2GTR75KVA-8


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen A1028698 is a DIN NH Standard fuse-link, specifically a gTr type, designed for transformer protection. This NH2 size fuse-link operates at 400VAC and has a rated current of 75A, suitable for transformers up to 75 kVA. Its time/current characteristic (gTr) is optimized for transformer protection, offering superior selectivity compared to gG fuse-links. A key feature of the gTr characteristic is its ability to withstand overload conditions: it can be loaded with 1.3 times its nominal current for up to 10 hours, and it will operate within 2 hours when subjected to 1.5 times the nominal transformer current. This makes it ideal for protecting transformers from sustained overloads while still providing fast protection against short circuits. The fuse-link features live gripping lugs and a top indicator for visual status indication. With a body width of 40 mm, it is compatible with standard NH2 fuse bases. This product is manufactured by Mersen in France.
  • Mersen NH2 size fuse-link for transformer protection
  • Rated 75A, 400VAC, and 75 kVA transformer capacity
  • gTr time/current characteristic for optimal transformer selectivity
  • Withstands 1.3x nominal current for 10 hours; operates at 1.5x nominal within 2 hours
  • Features live gripping lugs and top indicator for status monitoring

Specifications

AC Voltage Rating
400 V
Amperage Rating
108 A
Application
Protection of transformers
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Connection Type
live tags
Current Rating
108A
Interrupt Rating
100 kA
Mounting
Clip
Mounting Type
Plug-in
Series
NH System
Size
5.91 x 1.57 x 2.91 in
Size
150 x 40 x 74 mm
Size
NH2
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
Top indicator
Voltage Rating
400Vac
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

What is the purpose of NH fuse-links gTr?

NH fuse-links gTr are specifically designed for the protection of transformers.

What is the voltage rating for these NH fuse-links?

These NH fuse-links have a voltage rating of 400 VAC.

What is the time/current characteristic of these fuses?

The time/current characteristic is gTr, which is adapted to the protected transformer.

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

The available sizes are 2, 3, and 4a according to the standard.

What is the breaking capacity of these fuses?

The breaking capacity (I.R. AC) for these fuses is 100 kA according to IEC standards.

What materials are used for the body and contacts?

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

How long can these fuses be loaded at 1.3 times nominal current?

The fuses can be loaded with 1.3 times their nominal current for up to 10 hours.

At what current level and time do the fuses operate for transformers?

The fuse link operates at 1.5 times the nominal transformer current within 2 hours.

What is the Ampere range for these NH fuse-links?

The Ampere range for these fuse-links is from 72 A to 1443 A.

What is the nominal capacity of the transformer protected by these fuses?

The nominal capacity of the transformer protected by these fuses ranges from 50 kVA up to 1000 kVA.

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.