Mersen 6641HPJ - Fuse Block 1000VDC Photovoltaic 600A 1-Pole Box To Stud
Mersen

6641HPJ

Alternate Item Number: 6641HPJ

UPC: 782001441104

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Overview

The Mersen 6641HPJ is a 1-pole, 1000VDC, 600A fuse holder designed for photovoltaic applications. This unit features a box-to-stud terminal configuration, accommodating conductors from 500 kcmil to #4 AWG. It is specifically engineered for use with Mersen's HP6J series of photovoltaic fuses, offering an industry-first certification for 90°C temperature-rated conductors. The insulator is constructed from molded glass-filled polycarbonate, providing verified dielectric strength exceeding 2500V. Fuse clips are made of high-conductivity tin-plated copper for reliable performance. This fuse holder is UL Listed to Standard 4248-18 and CSA Component Certified, ensuring compliance with industry safety standards. Applications include re-combiner boxes (sub-combiner, array combiner, master combiner), inverter DC input, and battery charge controllers. The 6641HPJ is built for durability and consistent operation in demanding solar energy systems. It is proudly distributed by Gross Automation.
  • 1000VDC, 600A, 1-Pole Fuse Holder
  • Box to Stud Terminal Configuration
  • Compatible with 500 kcmil - #4 AWG Conductors
  • Designed for Mersen HP6J Photovoltaic Fuses
  • UL Listed to Standard 4248-18, CSA Certified

Specifications

Amperage Rating
600 A
Application
Re-combiner box (sub-combiner, array combiner, master combiner) applications Inverter DC input Battery charge controllers
Brand Name
Mersen
Class
Photovoltaic
Connection
Box To Stud
DC Voltage Rating
1000 V
Material
Phenolic
Maximum Operating Temperature
80 C
Mounting
Direct Screw Mount
Number Of Poles
1
Size
11 x 4 x 4.74 in
Size
279.4 x 101.6 x 120.396 mm
Special Features
UL approved for use with 90ºC temperature rated conductors Box and/or stud wire terminals available UL Listed to UL’s standard for photovoltaic fuse holders
Standard
UL listed to Standard 2579 File E333668 (70A to 600A) CSA Component Certified C22.2 (70A to 400A)
Sub Brand
Unassigned
Type
UL/CSA Fuse Bases
Package Dimensions (L x W x H)
11 in x 4 in x 4.74 in
Package Dimensions (L x W x H)
279.4 mm x 101.6 mm x 120.396 mm
Package Weight (Imperial)
8.760 lb
Package Weight (Metric)
3.973 kg
Fuse Block 1000VDC Photovoltaic 600A 1-Pole Stud

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LSCR102

Littelfuse LSCR Series is a comprehensive line of modular fuse blocks, designed to accommodate a wide range of High-Speed and UL Power Fuses. These LSCR Series blocks have modular stud type design that enables easy mounting in panel boards. LSCR Series blocks are CE Certified and RoHS Compliant. Features and Benefits: Modular design reduces inventory requirements; Sold in pairs for convenience; Supplied with nut and belleville washer; Constructed of molded phenolic (with plated steel studs) provide greater heat dissapation.
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.