Mersen 60301J - Fuse Block 600VAC 600VDC Class J 30A 1-Pole Box
Mersen

60301J

Alternate Item Number: 60301J

UPC: 782001758653

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Overview

The Mersen 60301J is a single-pole Class J fuse block designed for 600VAC/DC applications with a 30A rating. It features robust box connectors compatible with stranded or solid copper or aluminum conductors, accommodating wire sizes from #2 to #14 AWG. The insulator is constructed from molded glass-filled polycarbonate (GFPC) and has a verified dielectric strength exceeding 2500V. This fuse block meets UL4248 standards, is UL listed (Guide IZLT, File E52283), and CSA certified (class 6225, File 32169). It offers a high short-circuit current rating (SCCR) of 200kA and is recommended for use with AJT, A4J, and HSJ Class J fuses. The box connector torque specification is 35 in-lbs (4.0 N-m).
  • Single-pole Class J fuse block with 30A rating
  • 600VAC/DC operational voltage
  • Box connectors for #2 to #14 AWG copper or aluminum conductors
  • Molded glass-filled polycarbonate (GFPC) insulator
  • UL listed and CSA certified with 200kA SCCR

Specifications

AC Voltage Rating
600 V
Amperage Rating
30 A
Brand Name
Mersen
Class
Class J
Connection
Box
Connection Type
Box Connector
Connection Type
Screw, pressure plate, box, or stud connectors
Current Rating
30A
DC Voltage Rating
600 V
Material
Glass Filled Polycarbonate
Material
Glass-filled polycarbonate (GFPC) or phenolic
Material
Glass-filled Polycarbonate (GFPC)
Maximum Operating Temperature
80 C
Mounting
Direct Screw Mount
Number Of Poles
1
Phase
1
Poles
1-pole
Series
Class J
Size
#2 to #14 AWG
Size
4 x 1.65 x 2.12 in
Size
101.6 x 41.91 x 53.848 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)
4 in x 1.65 in x 2.12 in
Package Dimensions (L x W x H)
101.6 mm x 41.91 mm x 53.848 mm
Package Weight (Imperial)
0.260 lb
Package Weight (Metric)
0.118 kg
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Frequently Asked Questions

What is the voltage rating for the Mersen 60301J fuse block?

The Mersen 60301J fuse block is rated for 600VAC/DC.

What wire sizes can be used with the box connectors?

The box connectors accommodate stranded or solid copper or aluminum conductors ranging from #2 to #14 AWG.

What is the short-circuit current rating (SCCR) of this fuse block?

The Mersen 60301J has a short-circuit current rating (SCCR) of 200kA.

Which Class J fuses are recommended for use with the 60301J?

It is recommended for use with AJT, A4J, and HSJ Class J fuses.

What is the insulator material and dielectric strength?

The insulator is constructed from molded glass-filled polycarbonate (GFPC) with a verified dielectric strength exceeding 2500V.

What is the connector torque specification for the box connectors?

The box connector torque specification is 35 in-lbs (4.0 N-m).

What standards does the Mersen 60301J meet?

This fuse block is designed to meet UL4248 standards and is UL listed (Guide IZLT, File E52283) and CSA certified (class 6225, File 32169).

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.