Mersen A6K1R - Current-limiting Amp-Trap A6K-R fuses provide excellent protection where high available short-circuit currents exist. These fast-acting fuses are particularly good for branch/feeder circuits and back-up protection. 600 Volts 1 amps.
Mersen

A6K1R

Alternate Item Number: 782001915506

UPC: 782001915506


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Overview

The Mersen A6K1R Amp-Trap® fuse, part of the A6K-R series, is engineered to deliver exceptional protection in electrical systems facing high available short-circuit currents. This fast-acting, current-limiting fuse is specifically designed for demanding industrial applications where system integrity and component safety are paramount. With a robust 600VAC/300VDC rating and a 1A current capacity, the A6K1R is an ideal choice for safeguarding branch and feeder circuits, offering reliable backup protection. Engineered with Mersen's advanced current-limiting technology, the A6K1R fuse significantly reduces peak let-thru current during fault conditions. This crucial feature minimizes damage to sensitive equipment, reduces arc flash hazards, and enhances overall system reliability. The rejection-style design ensures that only compatible fuse classes can be used for replacement, preventing improper installations and maintaining the integrity of the protection scheme. Its durable fiberglass body provides dimensional stability, making it suitable for harsh industrial environments. Key features and benefits of the Mersen A6K1R fuse include: * **Superior Current Limitation:** Provides a high degree of current limitation for excellent component protection and system coordination. * **Fast-Acting Performance:** Quickly interrupts fault currents, minimizing damage and downtime. * **Rejection Style Design:** Prevents incorrect fuse replacements, ensuring system safety. * **Durable Construction:** Fiberglass body offers dimensional stability in demanding industrial settings. * **Easy Identification:** Imprint label allows for quick recognition and replacement.
  • Fast-acting, current-limiting Class RK1 fuse
  • 600VAC / 300VDC voltage rating
  • 1 Ampere current rating
  • 200kA AC / 20kA DC interrupting rating
  • Rejection-style design for proper replacement

Specifications

Amperage Rating
1 A
Application
Load centers Panelboards Switchboards Bus Duct Feeder Circuits Non-inductive Loads Lighting Circuits
Brand Name
Ferraz Shawmut
Class
Class RK1
Connection
Ferrule
Current Rating
1 A
Interrupt Rating
200 kA
Material
Fiberglass
Mounting
Clip
Mounting Type
Rejection-style
Series
A6K-R
Special Features
Rejection style design prevents replacement by other fuse classes Fiberglass body provides dimensional stability in harsh industrial environments Easy-to-Read imprint label for quick recognition and replacement High degree of current-limitation for low peak let-thru current
Standard
UL Listed to Standard 248-12, File E2137 CSA Certified to Standard C22.2, No. 248.12 DC tested to UL 248 limits (Mersen Self-Certified)
Type
North American Power Fuses
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
5 IN x 0.812 IN x 0.812 IN
Package Dimensions (L x W x H)
12.7 cm x 20.6248 mm x 20.6248 mm
Package Weight (Imperial)
0.180 L
Package Weight (Metric)
0.082 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 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.