Mersen Y212104 - DIN NH Standard fuse-link aM Size NH2 690VAC 250A live tags Striker Body width 2.20in
Mersen

Y212104

Alternate Item Number: NH2AM69V250P-2


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Specification Sheet

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Overview

The Mersen Y212104 is a high-capacity NH2 size fuse-link designed for robust overcurrent protection in industrial applications. Rated for 690 VAC and 250 A, this aM (motor protection) class fuse-link offers reliable safeguarding for electrical equipment. Featuring live gripping lugs for enhanced safety during handling and a striker mechanism for signaling fuse operation, it integrates seamlessly into the Mersen NH system. The NH system, 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 by qualified professionals is mandatory. This fuse-link is manufactured in France (FR) and is suitable for applications demanding precise and dependable circuit protection up to 690V. Its NH2 size ensures compatibility with standard NH fuse bases of the same designation. The aM classification indicates its suitability for protecting motors and other inductive loads against short circuits and overload conditions.
  • Mersen NH2 size fuse-link
  • Rated for 690 VAC and 250 A
  • aM (motor protection) class for inductive loads
  • Features live gripping lugs for safe handling
  • Includes a striker mechanism for operation indication

Specifications

AC Voltage Rating
690 V
Amperage Rating
250 A
Application
aM: Partial purpose, motor circuit protection
Body Material
Ceramic
Brand Name
Mersen
Connection
Plain Blades
Connection Material
Silver-Plated Copper
Interrupt Rating
80 kA
Mounting
Clip
Size
5.91 x 2.2 x 2.85 in
Size
150 x 56 x 72.3 mm
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)
5.91 in x 2.2 in x 2.85 in
Package Dimensions (L x W x H)
150 mm x 56 mm x 72.3 mm
Package Weight (Imperial)
1.243 lb
Package Weight (Metric)
0.564 kg
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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.