Mersen HP15FHM32A - Fuse Holder IEC+UL/CSA HelioProtection® Size 10x85 1500VDC IEC 1500VDC UL 1-Pole Box With LED DIN Rail mounting
Mersen

HP15FHM32A

Alternate Item Number: HP15FHM32A

UPC: 782001490768

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Overview

The Mersen HP15FHM32A (SKU: HP15FHM32A) is a 1-pole HelioProtection® fuse holder designed for demanding utility-scale photovoltaic applications. Engineered to meet the stringent requirements of 1500VDC systems, this fuse holder accepts 10/14x85mm gPV fuses, providing essential overcurrent protection. It boasts a robust construction with a UL 94 V-0 rated polymer material, ensuring superior flammability resistance, exceptional durability, and reliable dielectric withstand properties. The HP15FHM32A features an IP20 rated, finger-safe touch-safe design, enhancing user safety during installation and maintenance. Its rotating fuse carrier, similar to Mersen's UltraSafe® technology, facilitates easy fuse access and replacement. Installation is streamlined with 35 mm DIN rail mounting capabilities. The input and output terminals are designed to accommodate standard PV-rated wiring and comb bus bars, offering significant versatility for various end-use configurations. Key specifications include a maximum operating voltage of 1500VDC, a maximum current rating of 32ADC, and a Short-Circuit Current Rating (SCCR) of 50kA DC. The operating temperature range is -40 to +125°C. Approvals include UL 4248-19, CSA 22.2 No. 4248.19, and IEC 60269-2. This fuse holder is ideal for 1500VDC combiner boxes and all utility-scale photovoltaic applications where reliable and safe fuse protection is paramount. Manufactured in the US.
  • 1500VDC Maximum Operating Voltage
  • Accepts 10/14x85mm gPV fuses
  • IP20 rated (finger safe) touch-safe design
  • 35 mm DIN Rail Mounting
  • UL 94 V-0 rated polymer material for superior flammability resistance

Specifications

Amperage Rating
32 A
Application
All Utility scale photovoltaic applications 1500VDC Combiner Boxes
Brand Name
Mersen
Connection
Box
DC Voltage Rating
1500 V
Maximum Operating Temperature
125 C
Minimum Operating Temperature
-40 C
Mounting
DIN Rail
Number Of Poles
1
Operating Temperature, Maximum
257 F
Operating Temperature, Minimum
-40 F
Size
5.35 x 0.87 x 2.64;135.89 x 22.098 x 67.056 in;mm
Special Features
UL 94 V-0 Material Flammability Rating IP20 rated (finger safe) 35 mm DIN Rail Mounting Accepts 10/14 x 85mm gPV fuses
Standard
HP15FHM32: UL 4248-19, File# E347822 CSA 22.2, File# 032169 IEC 60269-2 USM15M1HEL: UL Recognized Component, evaluated to UL 4248-18, File# E493746 CSA 22.2, Component File# 265616
Sub Brand
HelioProtection®
Type
IEC+UL/CSA Fuse Holders
Package Dimensions (L x W x H)
5.35 in x 0.87 in x 2.64 in
Package Dimensions (L x W x H)
135.89 mm x 22.098 mm x 67.056 mm
Package Weight (Imperial)
0.180 lb
Package Weight (Metric)
0.082 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.