Mersen 20616R - Mersen class R fuseholders accommodate all class R power fuses. A choice of screw, pressure plate, and box connectors connectors fit a wide range of stranded or solid copper or aluminum wire. Insulators are either molded glass-filled polycarbonate (GFPC) or phenolic with verified dielectric strength in excess of 2500V. 30, 60, 100 and 200A fuseholders feature a unique adder block to form multi-pole segmented blocks of as many poles as desired. All fuse clips are made of high conductivity tin-plated copper 250 Volts 60 amps 1 poles screw connection.
Mersen

20616R

Alternate Item Number: 782001663889

UPC: 782001663889


Documents & Media
BrochureSpecification Sheet

Contact for Pricing

Overview

The Mersen Class R Fuseholder (SKU: 20616R) is a high-precision electrical component designed for 250V, 60A applications in industrial and commercial power distribution systems. This 1-pole fuseholder accommodates all Class R power fuses, providing reliable overcurrent protection and circuit isolation. The fuse clips are constructed from high-conductivity tin-plated copper, ensuring minimal resistance and optimal thermal performance during sustained operation. The insulator is available in either molded glass-filled polycarbonate (GFPC) or phenolic material, both offering verified dielectric strength exceeding 2500V for enhanced safety in high-voltage environments. The screw connection type ensures secure wire termination for stranded or solid copper or aluminum conductors, supporting wire ranges from #10 to #14 AWG. With a UL 4248 listing and UL recognized component status (Guide IZLT, File E52283), this fuseholder meets rigorous safety standards for industrial applications. The compact design and UL/CSA certifications make it ideal for panelboard integration, motor control centers, and power distribution units where Class R fuse protection is required. Compatible with Class R fuses such as A2D-R, A2K-R, and TR-R, the 20616R delivers consistent performance in 60Hz AC/DC systems, ensuring compliance with NEC and international electrical codes.
  • 250V voltage rating with 60A current capacity for Class R power fuses
  • Screw connection type for secure termination of stranded/solid copper or aluminum wires (#10-14 AWG)
  • Tin-plated copper fuse clips for high conductivity and corrosion resistance
  • Insulators made of GFPC or phenolic with dielectric strength >2500V
  • UL 4248 listed and UL recognized component (Guide IZLT, File E52283)

Specifications

Amperage Rating
60 A
Brand Name
Ferraz Shawmut
Class
Class H
Connection
Screw
Mounting
Screw Mount
Phase
1
Standard
UL Listed to standard 4248-12 (Class R), File E52283 CSA Certified C22.2, Class 6225, File 32212
Type
Open Style
Voltage Rating
250 VAC
Package Dimensions (L x W x H)
4.75 IN x 2.12 IN x 2.12 IN
Package Dimensions (L x W x H)
12.065 cm x 5.3848 cm x 5.3848 cm
Package Weight (Imperial)
0.250 L
Package Weight (Metric)
0.113 kg
DIN Fuse base Neozed Size D02 400VAC 63A 1-Pole without touch prot. Screw mounting Clamp Strap / Screw

F213008

DIN Fuse base Neozed Size D02 400VAC 63A 1-Pole without touch prot. Screw mounting Clamp Strap / Screw
DIN Fuse base Size DIII 500VAC 500VDC 63A 1-Pole without touch protection Screw mounting

H212021

DIN Fuse base Size DIII 500VAC 500VDC 63A 1-Pole without touch protection Screw mounting
DIN Fuse base Neozed Size D03 400VAC 100A 1-Pole with touch prot. Screw mounting Clamp Strap / Screw

K214024

DIN Fuse base Neozed Size D03 400VAC 100A 1-Pole with touch prot. Screw mounting Clamp Strap / Screw
DIN Fuse base Neozed Size D03 400VAC 100A 1-Pole without touch prot. Screw mounting Clamp Strap / Screw

J213011

DIN Fuse base Neozed Size D03 400VAC 100A 1-Pole without touch prot. Screw mounting Clamp Strap / Screw
DIN Fuse base Size DII 500VAC 500VDC 25A 1-Pole with touch protection Screw mounting

Z219189

DIN Fuse base Size DII 500VAC 500VDC 25A 1-Pole with touch protection Screw mounting
DIN Fuse base Neozed Size D02 400VAC 63A 1-Pole without touch protection Screw mounting Clamp Strap

M214532

DIN Fuse base Neozed Size D02 400VAC 63A 1-Pole without touch protection Screw mounting Clamp Strap
DIN Fuse base Size DIII 500VAC 500VDC 63A 1-Pole with touch protection Screw mounting

A212543

DIN Fuse base Size DIII 500VAC 500VDC 63A 1-Pole with touch protection Screw mounting
Fuse Holder UltraSafe™ 600VAC 600VDC Midget 30A 1-Pole IP20

USM1HEL

Fuse Holder UltraSafe™ 600VAC 600VDC Midget 30A 1-Pole IP20
Fuse Holder UltraSafe™ 600VAC 600VDC Class J 60A 1-Pole Pressure Plate IP65

US6J1

Fuse Holder UltraSafe™ 600VAC 600VDC Class J 60A 1-Pole Pressure Plate IP65
Fuse Holder UltraSafe™ 600VAC 600VDC Class J 60A 1-Pole LED Pressure Plate IP65

US6J1I

Fuse Holder UltraSafe™ 600VAC 600VDC Class J 60A 1-Pole LED Pressure Plate IP65
Fuse Holder UltraSafe™ 600VAC 600VDC Class J 60A N Pressure Plate IP65

US6JN

Fuse Holder UltraSafe™ 600VAC 600VDC Class J 60A N Pressure Plate IP65
DIN Fuse base Size DII 500VAC 500VDC 25A 1-Pole without touch protection Screw mounting

K218670

DIN Fuse base Size DII 500VAC 500VDC 25A 1-Pole without touch protection Screw mounting

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.