Mersen 60655J - Fuse Block 600VAC 600VDC Class J 60A Adder Copper Box
Mersen

60655J

Alternate Item Number: 60655J

UPC: 782001756901

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Overview

The Mersen 60655J Class J Fuse Block is a 600VAC/600VDC, 60A rated fuse block designed for high-performance industrial applications. This copper box connector features a glass-filled polycarbonate (GFPC) insulator with dielectric strength exceeding 2500V, ensuring reliable electrical insulation and safety. The fuse block accommodates stranded or solid copper conductors (#4-14 AWG) with a torque rating of 45 in-lb, providing secure connections for 30A, 60A, and 100A configurations. The 60655J includes spring-reinforced tin-plated copper fuse clips for high conductivity and durability, meeting UL4248 (formerly UL512) and CSA Class 6225 certifications. Designed for Class J fuses (AJT, A4J, HSJ), this fuse block is ideal for panelboard and switchgear applications where space efficiency and modularity are critical. The adder block configuration allows for flexible multi-pole setups, enabling customization to meet specific system requirements. Compatible with copper wires only, this fuse block ensures optimal heat cycling performance with a coefficient of expansion matching copper conductors.
  • 600VAC/600VDC rated, 60A continuous current
  • Copper box connector for stranded/solid copper conductors (#4-14 AWG)
  • Glass-filled polycarbonate insulator with >2500V dielectric strength
  • Spring-reinforced tin-plated copper fuse clips for high conductivity
  • UL4248 and CSA Class 6225 certified for Class J fuses (AJT, A4J, HSJ)

Specifications

AC Voltage Rating
600 V
Amperage Rating
60 A
Brand Name
Mersen
Class
Class J
Connection
Copper Box
DC Voltage Rating
600 V
Material
Glass Filled Polycarbonate
Maximum Operating Temperature
80 C
Mounting
Direct Screw Mount
Number Of Poles
1
Phase
1
Size
3.9 x 1.5 x 2.2 in
Size
99.06 x 38.1 x 55.88 mm
Special Features
Class J Blocks (600V) use with AJT, A4J, HSJ
Standard
All class J fuse blocks meet the requirements of UL4248 (formerly UL512) UL listed Guide IZLT, File E52283 CSA certified class 6225, File 32169
Type
UL/CSA Fuse Bases
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
3.9 in x 1.5 in x 2.2 in
Package Dimensions (L x W x H)
99.06 mm x 38.1 mm x 55.88 mm
Package Weight (Imperial)
0.250 lb
Package Weight (Metric)
0.113 kg
Fuse Block 600VAC 600VDC Class H/K 60A Adder Copper Box

60655

Fuse Block 600VAC 600VDC Class H/K 60A Adder Copper Box
600V CLASS CD BLOCK 60A 1 POLE NON-ID

LFC60060-1C

600V CLASS CD BLOCK 60A 1 POLE NON-ID
DR4/8 SF DIN2

1SNA110368R1200

DR4/8 SF DIN2

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.