Mersen FB60J60B1 - Fuse Block 600VAC 600VDC Class J 60A 1-Pole Box
Mersen

FB60J60B1

Alternate Item Number: FB60J60B1

UPC: 782001505158


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Overview

The Mersen FB60J60B1 is a Generation 2, 1-pole Class J fuse block designed for 600VAC and 600VDC applications, rated for 60A. This open-style fuse block accommodates Class J fuses ranging from 0-100A. It features versatile connection options including screw, pressure plate, and box connectors, compatible with a wide range of stranded or solid wire. Engineered for modern installations, the Gen2 fuse blocks offer a more compact footprint compared to traditional models and are DIN-rail mountable for efficient panel building. The dovetail nesting feature allows for easy multipole field assembly, simplifying complex configurations. When paired with Mersen’s newly designed dead front covers (sold separately), the fuse bases achieve an IP20 rating, providing essential protection against accidental contact. This product, SKU FB60J60B1, is manufactured in the USA by Mersen, a trusted name in electrical protection. Its robust construction and adherence to safety standards make it suitable for various industrial power distribution and control applications where reliable fuse protection is paramount.
  • 1-Pole Class J Fuse Block for 600VAC/VDC
  • 60A Current Rating
  • Box, Screw, and Pressure Plate Connectors
  • DIN-rail Mountable for Easy Installation
  • IP20 Rated When Paired with Dead Front Covers

Specifications

AC Voltage Rating
600 V
Amperage Rating
60 A
Application
Branch circuits Control panels Load centers Lighting, heating, & general loads
Brand Name
Mersen
Class
Class J
Connection
Box
DC Voltage Rating
600 V
Material
Glass Filled Polycarbonate
Maximum Operating Temperature
80 C
Mounting
Direct Screw Mount
Number Of Poles
1
Size
4.25 x 1.5 x 2.77 in
Size
107.95 x 38.1 x 70.358 mm
Special Features
DIN-rail mountable, 600V, 30-100A fuse bases 30A is available with box, screw, and pressure plate terminations 60A & 100A is available with box only Fresh new Mersen gray color for fuse base Dovetail design for interlocking configuration of 2-pole and 3-pole bases Unique molding around the termination to accommodate hinged cover and for increased safety Built-in lockout/tagout feature IP20 finger safe New clear covers with indicators for safety and visual inspections Multi-connector wiring options
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
Package Dimensions (L x W x H)
4.25 in x 1.5 in x 2.77 in
Package Dimensions (L x W x H)
107.95 mm x 38.1 mm x 70.358 mm
Package Weight (Imperial)
0.240 lb
Package Weight (Metric)
0.109 kg
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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.