Mersen NLJ200 - Neutral link used to replace Class J fuses . 600V 200A
Mersen

NLJ200

Alternate Item Number: 782001343132

UPC: 782001343132

Contact for Pricing

Overview

The Mersen NLJ200 Neutral Link (SKU: NLJ200) is a direct replacement for Class J fuses in 600V, 200A systems. Designed for industrial electrical panels, switchgear, and motor control centers, this neutral link ensures stable neutral point connections to prevent voltage imbalances and faults. Rated for 600V AC/DC and 200A continuous current, it integrates seamlessly with existing Class J fuse holders and fuse blocks, minimizing installation downtime. Constructed with high-conductivity tin-plated copper clips and reinforced phenolic or glass-filled polycarbonate insulators, the NLJ200 withstands harsh environments with dielectric strength exceeding 2500V. It meets UL4248 and CSA Class 6225 standards, providing SCCR up to 200kA RMS symmetrical. Ideal for industrial control panels, power generation, and commercial buildings requiring reliable neutral management. Backed by Mersen’s quality assurance, this US-made component delivers long-term operational integrity in critical power distribution systems.
  • Direct replacement for Class J fuses in 600V, 200A systems
  • Rated for 600V AC/DC and 200A continuous current
  • UL4248 and CSA Class 6225 certified with 200kA SCCR
  • High-conductivity tin-plated copper clips for low-resistance connections
  • Reinforced phenolic or glass-filled polycarbonate insulators with >2500V dielectric strength

Specifications

Amperage Rating
200 A
Application
Used in place of a fuse
Brand Name
Ferraz Shawmut
Current Rating
200 A
Type
Neutral Link
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
6 IN x 1.69 IN x 0.1875 IN
Package Dimensions (L x W x H)
15.24 cm x 4.2926 cm x 4.7625 mm
Package Weight (Imperial)
0.720 L
Package Weight (Metric)
0.327 kg
Cover DFC Series 600VAC 200A Class J

DFC-12

Cover DFC Series 600VAC 200A Class J
Fuse Reducer 600V Class R 200 - 400

R422

Fuse Reducer 600V Class R 200 - 400
Cover DFC Series 600VAC 200A Class J LED

DFC-12I

Cover DFC Series 600VAC 200A Class J LED
12P 1PH 600VAC/1000VDC BUSBAR

USBB1PH25K12

12P 1PH 600VAC/1000VDC BUSBAR
9P 3PH 600V BUSBAR 25MM

USBB3PH25K9

9P 3PH 600V BUSBAR 25MM
Fuse Reducer 600V Class J 200 - 400

J426

Fuse Reducer 600V Class J 200 - 400
6P 3PH 600V BUSBAR 25MM

USBB3PH25K6

6P 3PH 600V BUSBAR 25MM
4P 1PH 600VAC/1000VDC BUSBAR

USBB1PH25K4

4P 1PH 600VAC/1000VDC BUSBAR
Fuse Reducer 600V Class R 200 - 600

R622

Fuse Reducer 600V Class R 200 - 600
Ferraz Shawmut Fuse Clip Clamps are used to clamp fuse clips together onto a fuse ferrule or blade. An easy twist of the cap tightens the jaws against the clip, preventing heating by reducing resistance at the point where fuse and clip make contact. 600 Volts 200 Amps knife blade fuses.

32-005G

Ferraz Shawmut Fuse Clip Clamps are used to clamp fuse clips together onto a fuse ferrule or blade. An easy twist of the cap tightens the jaws against the clip, preventing heating by reducing resistance at the point where fuse and clip make contact. 600 Volts 200 Amps knife blade fuses.
Fuse Reducer 600V Class J 200 - 600

J626

Fuse Reducer 600V Class J 200 - 600
Fuse Reducer 600V Class H, K 200 - 600

622

Fuse Reducer 600V Class H, K 200 - 600

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.