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Mersen US6JPAK - Mersen UltraSafe modular class J fuseholders introduce a new level of safety and ease for installing or replacing class J fuses. UltraSafe fuseholders qualify as finger-safe to an IP20 grade of protection under IEC standards. The US3J accommodates 30A class J or IEC cylindrical 22x58mm fuses. The US6J accommodates 60A class J. UltraSafe fuseholders are available in compact 1, 2, or 3-pole units, with or without visual blown fuse indication. Multiple poles can be assembled in the field by ordering and installing pin-tie handles. US3J and US6J fuseholders can be mounted on 35mm DIN-rail. Body material is a tough and durable polyamide. 60A size pin tie kit series.

Mersen US6JPAK Mersen UltraSafe modular class J fuseholders introduce a new level of safety and ease…

Alternate Item Number: 782001423513

UPC: 782001423513


Documents & Media
Specification Sheet

Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen US6JPAK (SKU: US6JPAK) is a Mersen UltraSafe™ modular fuseholder designed for 60A Class J fuses, offering enhanced safety and ease of use in industrial electrical systems. This fuseholder provides IP20 finger-safe protection according to IEC standards, ensuring user safety during fuse installation and replacement. It is rated for 600VAC/DC and features a 200kA Short Circuit Current Rating (SCCR), making it suitable for high-fault applications. The US6JPAK features a unique latch mechanism that locks the holder in the open position for safe servicing and allows for easy repositioning on a 35mm DIN-rail without removal. Optional indicator lights are available for visual blown-fuse indication, aiding in quick status monitoring and reducing downtime. Constructed from durable polyamide, this fuseholder is built to withstand demanding industrial conditions. The US6JPAK is ideal for protecting 600-volt motors, transformers, lighting, heating, control circuits, and general loads. It functions as a non-load disconnect. Recommended fuse types for optimal performance include AJT, A4J, and HSJ. The US6JPAK is UL Listed (File E52283) and CSA Certified (File 32169).
  • 60A Class J fuseholder with 600VAC/DC rating
  • IP20 finger-safe protection per IEC standards
  • 200kA Short Circuit Current Rating (SCCR)
  • Modular design for 1, 2, or 3-pole configurations
  • 35mm DIN-rail mountable with a unique latching mechanism

Specifications

Application
600V motors, transformers, lighting, heating, control circuits, general loads
Brand Name
Ferraz Shawmut
Class
Accessory
Connection Type
Pressure plate connectors with Phillips/slot terminal screws
Current Rating
60 A
IP Rating
IP20
Material
Polyamide
Mounting Type
DIN-Rail
Mounting Type
35mm DIN-rail
Poles
1/2/3
Poles
1, 2, or 3-pole
Series
UltraSafe
Special Features
Finger-safe IP20 protection Optional blown fuse indicator lights DIN-rail mount Compact footprint Quick, easy fuse change
Standard
UL Listed to standard 4248-8, File E52283 CSA Certified C22.2, Class 6225, File 32169
Type
UltraSafe
Voltage Rating
600 VAC
Package Dimensions (L x W x H)
1 IN x 1 IN x 1 IN
Package Dimensions (L x W x H)
25.4 mm x 25.4 mm x 25.4 mm
Package Weight (Imperial)
0.010 L
Package Weight (Metric)
0.005 kg
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Frequently Asked Questions

Can the US6JPAK be used with 30A Class J fuses?

No, the US6JPAK is rated for 60A Class J fuses only. The US3J accommodates 30A fuses.

What voltage rating does the US6JPAK support?

The US6JPAK operates at 600VAC/DC, suitable for high-voltage industrial applications.

What DIN-rail size is required for the US6JPAK?

The US6JPAK snap-fits to standard 35mm DIN-rail for easy mounting.

What is the SCCR rating of the US6JPAK?

The US6JPAK has a 200kA Short Circuit Current Rating (SCCR), ensuring robust fault protection.

What wire sizes are compatible with the US6JPAK?

The US6JPAK supports #2 to #14 AWG stranded or solid copper wire with pressure plate connectors.

Is the US6JPAK compatible with French Ferrule fuses?

No, the US6JPAK is not UL listed when used with 22x58mm French Ferrule fuses.

Does the US6JPAK include blown-fuse indicators?

Blown-fuse indicators are optional and must be ordered separately for each pole.

What fuse types are recommended for the US6JPAK?

Recommended fuse types include AJT, A4J, and HSJ for optimal compatibility and performance.

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.