Mersen A2K60R - Fuse A2K-R - Class RK1 - Fast-Acting 250VAC 250VDC 60A Ferrule Amp-Trap®
Mersen

A2K60R

Alternate Item Number: A2K60R

UPC: 782001915162


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Overview

The Mersen A2K60R is a Class RK1 fast-acting, current-limiting fuse designed for industrial applications requiring high short-circuit current protection. Rated for 250VAC/DC and 60A, this fuse delivers a 200kA AC and 20kA DC interrupting rating, ensuring reliable performance in high-fault environments. Its rejection-style design prevents replacement by other fuse classes, maintaining system integrity. The fiberglass body ensures dimensional stability in harsh conditions, while the easy-to-read imprint label enables quick identification and replacement. Ideal for branch/feeder circuits, load centers, panelboards, switchboards, and bus duct systems, the A2K60R also provides backup protection for non-inductive and lighting circuits. With low peak let-through current, it safeguards sensitive equipment from damage. Approved by UL (File E2137) and CSA (C22.2 No. 248.12), this fuse is engineered for high current limitation and durability. Compatible fuse blocks include Mersen’s 20606R (1-pole) or 20608R (3-pole) for 31-60A ratings at 250V.
  • Class RK1 rejection-style design prevents replacement by other fuse classes
  • 250VAC/DC voltage rating with 60A current rating
  • 200kA AC / 20kA DC interrupting rating for high short-circuit protection
  • Fiberglass body ensures dimensional stability in harsh environments
  • Easy-to-read imprint label for quick identification and replacement

Specifications

AC Voltage Rating
250 V
Amperage Rating
60 A
Application
Load centers Panelboards Switchboards Bus duct Feeder circuits Non-inductive loads Lighting circuits
Body Material
PolyTube
Brand Name
Mersen
Class
Class RK1
Connection
Ferrule
Connection Material
Tin-Plated Copper
DC Voltage Rating
250 V
Fuse Class
RK1
Interrupt Rating
200 kA
Mounting
Clip
Size
3 x 0.81 in
Size
76.2 x 20.625 mm
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 Self-certified for DC per UL248
Sub Brand
Amp-Trap®
Type
Class RK1
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
3 in x 0.81 in x 0.81 in
Package Dimensions (L x W x H)
76.2 mm x 20.625 mm x 20.625 mm
Package Weight (Imperial)
0.121 lb
Package Weight (Metric)
0.055 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.

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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.