Mersen J214690 - The NH system is classified among plug-in fuse systems and is composed of: • fuse-base (possibly including terminal covers and phase barriers) • fuse-link with blade contact • fuse-link replacement device (LV HRC fuse puller) Since the design of this system cannot guarantee non-interchangeability of rated current it must be handled by a qualified professional. Type aM NH fuse-links are partial-range breaking capacity fuse-links, used to protect motor circuits as they are strongly current-limiting and have low power losses. They interrupt currents from 6.3 times In up to their maximum breaking capacity and are therefore suited for short-circuit protection only. They must be associated with other switchgear for protection against overloads. These fuse-links can have a rated current equal to the motor's nominal current. NH1 NH2 Separator .
Mersen

J214690

Alternate Item Number: 8430399005140

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Minimum Qty: 2

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Overview

The Mersen NH1 NH2 Separator (SKU: J214690) is a critical component of the NH plug-in fuse system designed for reliable motor circuit protection in industrial applications. This system includes NH fuse-bases (sizes NH1, NH2, NH3), fuse-links with blade contacts (Type aM), and a fuse-link replacement device (LV HRC fuse puller). Type aM NH fuse-links are partial-range breaking capacity fuse-links, engineered for short-circuit protection in motor circuits. They interrupt currents from 6.3 times In up to their maximum breaking capacity, offering strong current-limiting capabilities and low power losses. These fuse-links must be paired with additional switchgear for overload protection. The NH system is classified under IEC 60269-1, IEC 60269-2, and NF EN 60269-1 standards, ensuring compliance with global electrical safety requirements. NH fuse-bases are available in open designs (screw mounting) or with touch protection (screw/DIN rail mounting), supporting rated currents from 160A to 630A at 690VAC. The NH1 NH2 Separator is manufactured by Mersen in the US and is distributed by Gross Automation. Key features include phase separation shields, terminal shrouds, and fuse covers for enhanced safety and installation flexibility. Applications include motor circuits, industrial machinery, and low-voltage distribution systems requiring precise fuse-link management and high breaking capacity.
  • Type aM NH fuse-links for short-circuit protection in motor circuits (6.3x In to max breaking capacity)
  • Partial-range breaking capacity with low power losses and strong current-limiting
  • NH fuse-bases available in open or touch-protected designs (screw/DIN rail mounting)
  • Complies with IEC 60269-1, IEC 60269-2, and NF EN 60269-1 standards
  • Includes phase separation shields, terminal shrouds, and fuse covers for safety

Specifications

Application
gG: general purpose cable and line protection
Brand Name
Ferraz Shawmut
Special Features
Dimensions according to DIN 43 620 parts 1 to 4 Non-isolated gripping lugs Double indicator Lead free contact blades 0% cadmium
Standard
DIN 57636 Part 201 VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Voltage Rating
500 VAC
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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.

LCC5

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.