Mersen NLS100 - Neutral link used to replace Class H fuses . 600V 100A
Mersen

NLS100

Alternate Item Number: 782001712808

UPC: 782001712808

Contact for Pricing

Overview

The Mersen NLS100 (SKU: NLS100) is a UL-listed neutral link designed as a direct replacement for 100A Class H fuses in 600V AC electrical systems. This permanent solution eliminates the recurring cost and downtime associated with fuse replacement. The NLS100 installs directly into existing Class H fuse holders, including legacy offset blade types, without requiring panel modifications. It offers flexible connection options, supporting both front-to-front and back-to-back configurations for straightforward integration into electrical infrastructure. Constructed from durable phenolic material, the NLS100 ensures reliable performance in industrial, commercial, and infrastructure applications. Rated for 600V AC and 100A continuous current, it is a key component within Mersen's low-voltage fuse systems. Manufactured in the US and UL-listed, the NLS100 meets stringent safety standards. This neutral link provides an efficient, maintenance-free upgrade for modernizing legacy electrical infrastructure, offering a cost-effective alternative to traditional fuses. It is compatible with Mersen Class H fuse holders. Mersen also offers neutral links for BS88 fuse holders, rated up to 690V AC and 125A, demonstrating a broad range of application suitability within Mersen's product line.
  • Direct replacement for 100A Class H fuses
  • 600V AC voltage rating
  • 100A current rating
  • Durable phenolic construction
  • UL-listed for safety compliance
  • Installs directly into Class H fuse holders
  • Supports front-to-front or back-to-back connections
  • Eliminates recurring fuse replacement costs

Specifications

Amperage Rating
100 A
Application
Used in place of a fuse
Brand Name
Ferraz Shawmut
Connection Type
Front-to-front or back-to-back
Connection Type
Front-to-front or back-to-back connections
Current Rating
100 A
Current Rating
100A
Material
Phenolic
Mounting Type
Direct Replacement in Class H Fuse Holders
Mounting Type
Fuse holder compatible
Poles
1P
Poles
1
Series
NLS
Series
UL Low Voltage Fuse System
Series
NLS series
Type
Neutral Link
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
7.875 IN x 0.72 IN x 0.12 IN
Package Dimensions (L x W x H)
20.0025 cm x 18.288 mm x 3.048 mm
Package Weight (Imperial)
0.660 L
Package Weight (Metric)
0.299 kg
Cover DFC Series 600VAC 100A Class J LED

DFC-3I

Cover DFC Series 600VAC 100A Class J LED
Littelfuse® fuse reducers allow smaller size fuses to be installed into existing fuse clips to prevent overfusing.

LRU-263

Littelfuse® fuse reducers allow smaller size fuses to be installed into existing fuse clips to prevent overfusing.

Frequently Asked Questions

What is the Mersen NLS100 rated for?

The Mersen NLS100 is rated for 600V AC and a continuous current capacity of 100A.

What type of fuse does the NLS100 replace?

The NLS100 is designed to replace Class H fuses.

What is the construction material of the NLS100?

The NLS100 is constructed from durable phenolic material.

Does the NLS100 require panel modifications?

No, the NLS100 is engineered to fit existing Class H fuse holders without requiring panel modifications.

What connection types does the NLS100 support?

The NLS100 supports flexible front-to-front or back-to-back connections.

Where is the Mersen NLS100 manufactured?

The Mersen NLS100 is manufactured in the US.

Is the NLS100 UL-listed?

Yes, the Mersen NLS100 is UL-listed, confirming compliance with stringent safety standards.

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.