Mersen Q1000077 - DIN NH Standard fuse-link aM Size NH4 690VAC 630A live tags Striker Body width 100.10 mm
Mersen

Q1000077

Alternate Item Number: NH4AM69V630P-2


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Specification Sheet

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Overview

The Mersen NH4AM69V630-8 is a Size 4 NH standard fuse-link designed for industrial applications requiring robust overcurrent protection. Rated for 690VAC and 630A, this aM (motor protection) class fuse-link offers reliable performance in demanding electrical systems. It features live tags for safe handling and a striker for integration with fuse monitoring systems. The NH system, classified as a plug-in fuse system, comprises a fuse-base, fuse-link with blade contacts, and a fuse-link replacement device. Due to the system's design, which does not guarantee non-interchangeability of rated current, handling must be performed by a qualified professional. This specific model, SKU Q1000077, is manufactured by Mersen in France and adheres to IEC standards for low-voltage fuse systems. Its dimensions and specifications are critical for ensuring proper system protection and operational safety. The power dissipation at rated current (In) is 50W, with a package weight of 2.2 kg. This fuse-link is suitable for applications where motor protection is paramount, offering a high breaking capacity to safely interrupt fault currents. Ensure compatibility with your specific system requirements and consult qualified personnel for installation and maintenance.
  • Mersen NH Standard Fuse-Link, Size 4
  • Rated for 690VAC and 630A
  • aM (motor protection) class for enhanced motor safeguarding
  • Features live tags for safer handling and a striker for monitoring systems
  • Manufactured by Mersen in France, adhering to IEC standards

Specifications

AC Voltage Rating
690 V
Amperage Rating
630 A
Application
aM: Partial purpose, motor circuit protection
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Current Rating
630 A
Interrupt Rating
120 kA
Series
NH
Size
7.85 x 3.94 x 4.61 in
Size
199.5 x 100 x 117 mm
Size
NH4
Special Features
Dimensions according to DIN 43 620 Parts 1 to 4 Lead free contact blades 0 cadmium
Standard
VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Type Of Indicators
Striker
Voltage Rating
690 VAC
Package Dimensions (L x W x H)
7.85 in x 3.94 in x 4.61 in
Package Dimensions (L x W x H)
199.5 mm x 100 mm x 117 mm
Package Weight (Imperial)
4.850 lb
Package Weight (Metric)
2.200 kg
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Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

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Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

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Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
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.
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in

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.