Mersen 64011HPJ - Fuse Block 1000VDC Photovoltaic 400A 1-Pole Stud
Mersen

64011HPJ

Alternate Item Number: 64011HPJ

UPC: 782001441173


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Overview

The Mersen 64011HPJ is a 1000VDC, 400A, 1-pole fuse block designed for photovoltaic (PV) systems. Certified for use with 90°C temperature-rated conductors, it sets the industry standard for high-temperature compatibility in PV applications. The fuse block features a stud connector configuration for reliable wire termination and is constructed from high-strength glass-filled polycarbonate or phenolic, ensuring dielectric strength in excess of 2500V. Engineered for compatibility with Mersen’s HP6J and HP10J series photovoltaic fuses, the 64011HPJ delivers superior conductivity with high-conductivity tin-plated copper fuse clips. Its robust design withstands continuous temperature and current cycling, making it ideal for demanding PV environments such as re-combiner boxes, inverter DC inputs, and battery charge controllers. The fuse block’s open-style design allows for easy fuse replacement and inspection, while its compact dimensions (87mm with protective cover) enable efficient installation in space-constrained applications.
  • 1000VDC rated for photovoltaic applications
  • 400A current rating with 50kA interrupting rating
  • Compatible with Mersen HP6J/HP10J series fuses
  • Glass-filled polycarbonate or phenolic construction with >2500V dielectric strength
  • M10 stud connector for 350kcmil to #6 AWG wire termination

Specifications

Amperage Rating
400 A
Application
Re-combiner box (sub-combiner, array combiner, master combiner) applications Inverter DC input Battery charge controllers
Brand Name
Mersen
Class
Photovoltaic
Connection
Stud
DC Voltage Rating
1000 V
Material
Glass Filled Polycarbonate
Maximum Operating Temperature
80 C
Mounting
Direct Screw Mount
Number Of Poles
1
Size
10 x 3 x 3.69 in
Size
254 x 76.2 x 93.726 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)
10 in x 3 in x 3.69 in
Package Dimensions (L x W x H)
254 mm x 76.2 mm x 93.726 mm
Package Weight (Imperial)
6.900 lb
Package Weight (Metric)
3.130 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.