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Mersen W1030534A - DIN NH Standard fuse-link gTr Size NH3 400VAC 180A 125KVA isolated tags Center indicator Body width 53.10 mm
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Mersen W1030534A DIN NH Standard fuse-link gTr Size NH3 400VAC 180A 125KVA isolated tags Center indicator…

Alternate Item Number: NH3GTR125KVA-1


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 W1030534A is a DIN NH Standard fuse-link, size NH3, designed for transformer protection in low-voltage electrical systems. This gTr characteristic fuse-link features a time/current curve optimized for selectivity with other NH gG fuse-links, ensuring reliable and coordinated protection for transformers rated 50-1000 kVA. The fuse-link operates at 400VAC with a rated current of 180A and a breaking capacity of 125kVA, making it suitable for medium to large industrial transformers. It includes isolated tags for safe handling and a center indicator for clear visual status monitoring. The body width measures 53.10 mm, fitting standard NH3 fuse bases. A key operational feature is the ability to handle 1.3 times nominal current for up to 10 hours, and 1.5 times nominal transformer current within 2 hours, providing temporary overload tolerance without nuisance tripping. The NH system design includes a fuse-base, terminal covers, phase barriers, and a replacement device, ensuring safe and efficient fuse-link management.
  • Rated current: 180A for transformer protection
  • Voltage rating: 400VAC, breaking capacity 125kVA
  • gTr time/current curve for optimal selectivity with NH gG fuse-links
  • Isolated tags and center indicator for safe handling and status monitoring
  • Body width: 53.10 mm, compatible with NH3 fuse bases
  • Temporary overload tolerance: 1.3x nominal current for 10 hours, 1.5x within 2 hours
  • Ceramic body with copper, silver-plated contacts for durability
  • Part of Mersen's NH fuse-link system for low-voltage protection

Specifications

AC Voltage Rating
400 V
Amperage Rating
180 A
Application
Protection of transformers
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Connection Type
isolated tags
Current Rating
180 A
Interrupt Rating
100 kA
Mounting
Clip
Mounting Type
DIN NH Standard
Series
gTr
Size
5.91 x 2.09 x 3.5 in
Size
150 x 53 x 89 mm
Size
NH3
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
Voltage Rating
400 VAC
Package Dimensions (L x W x H)
5.91 in x 2.09 in x 3.5 in
Package Dimensions (L x W x H)
150 mm x 53 mm x 89 mm
Package Weight (Imperial)
2.205 lb
Package Weight (Metric)
1.000 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 type of protection do NH fuse-links gTr provide?

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

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

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

What is the rated current for catalog number W1030534A?

The rated current (In) for catalog number W1030534A is 180 A.

What is the time/current characteristic of these fuse-links?

The time/current characteristic is gTr, adapted to the protected transformer for optimal selectivity.

What is the transformer nominal capacity for W1030534A?

The transformer nominal capacity for W1030534A is 125 kVA.

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

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

What is the width of size 3 fuse-links?

The width for size 3 fuse-links is 53 mm.

At what point does the fuse link operate at 1.5 times nominal transformer current?

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

What is the power dissipation at In for a 180A fuse-link?

The power dissipation at In for a 180A fuse-link is 11.2 W.

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

These fuse-links are available in sizes 2, 3, and 4a according to the standard.

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.