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Mersen K227893 - DIN NH Standard fuse-link aM Size NH1 690VAC 80A live tags Double indicator Body width 40 mm
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Mersen K227893 DIN NH Standard fuse-link aM Size NH1 690VAC 80A live tags Double indicator Body width…

Alternate Item Number: NH1AM69V80


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Specification Sheet

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Overview

Rated at 690VAC and 80A, this aM-type fuse-link provides partial-range breaking capacity, interrupting fault currents from 6.3 times its rated current (504A) up to 80 kA. Engineered for short-circuit protection, it features low power losses and strong current-limiting capabilities, making it ideal for motor applications where high inrush currents are common. The fuse-link includes double indicators for clear status visibility, allowing quick identification of blown or intact fuses. It also features live gripping lugs for safe handling by qualified professionals, reducing the risk of electrical shock during installation or replacement. Compatible with the NH plug-in system, it requires a fuse-base and replacement device (LV HRC fuse puller) for installation. Note: The NH system does not guarantee non-interchangeability of rated current, so professional handling is mandatory to prevent incorrect fuse selection. The body width is 40 mm, ensuring compatibility with standard NH1 fuse holders.
  • Rated 690VAC, 80A for motor circuit protection
  • aM-type partial-range breaking capacity (interrupts 6.3×In to 80 kA)
  • Double indicator for clear status visibility
  • Live gripping lugs for safe handling
  • NH1 size (40 mm body width) per DIN 43620

Specifications

AC Voltage Rating
690 V
Amperage Rating
80 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
5.31 x 1.57 x 2.52 in
Size
135 x 40 x 64 mm
Special Features
Dimensions according to DIN 43 620 parts 1 to 4 Non-isolated gripping lugs Double indicator 0 cadmium
Standard
VDE 0636 Part 201 IEC 60269-1 and -2
Type
IEC NH Fuse-Links
Type Of Indicators
Double indicator
Voltage Rating
690 VAC
Package Dimensions (L x W x H)
5.31 in x 1.57 in x 2.52 in
Package Dimensions (L x W x H)
135 mm x 40 mm x 64 mm
Package Weight (Imperial)
0.948 lb
Package Weight (Metric)
0.430 kg
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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.
9F61 Size B Clips 1.6in

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9F61 Size B Clips 1.6in

Frequently Asked Questions

What is the breaking capacity of the K227893?

The fuse-link has a breaking capacity of 80 kA (IEC rated).

What does 'aM' classification mean?

The 'aM' classification indicates a partial-range breaking capacity fuse-link designed for motor circuit protection, interrupting fault currents from 6.3 times its rated current up to its maximum breaking capacity.

Is this fuse-link suitable for overload protection?

No, this fuse-link is designed for short-circuit protection only. It must be used with other switchgear for overload protection.

Does this fuse-link include indicators?

Yes, it features a double indicator for clear status visibility of the fuse condition.

Can this fuse-link be used in any fuse-base?

No, it must be used with an NH system fuse-base and replacement device (LV HRC fuse puller) as per the NH plug-in system design.

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.