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Overview
- 1500 VDC voltage rating for utility-scale PV applications
- IP20 finger-safe protection with pull-out, pivoting fuse carrier
- UL 94 V-0 rated polymer material for superior flammability resistance
- Terminals accept standard stock bus bars for simplified installation
- DIN rail mounting for easy integration into PV systems
Specifications
Amperage Rating | 32 A |
Application | All Utility scale photovoltaic applications 1500VDC Combiner Boxes |
Brand Name | Mersen |
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 | 5.62 x 0.88 x 2.73;142.748 x 22.352 x 69.342 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) | 5.62 in x 0.88 in x 2.73 in |
Package Dimensions (L x W x H) | 142.748 mm x 22.352 mm x 69.342 mm |
Package Weight (Imperial) | 0.018 lb |
Package Weight (Metric) | 0.008 kg |

HP15FHM32A
Fuse Holder IEC+UL/CSA HelioProtection® Size 10x85 1500VDC IEC 1500VDC UL 1-Pole Box With LED DIN Rail mounting
HP15FHM32B
Fuse Holder IEC+UL/CSA HelioProtection® Size 10x85 1500VDC IEC 1500VDC UL 1-Pole Cage Clamp With LED DIN Rail mounting
HP15FHP80W
Mersen's HP15FHP80W fuse holders are engineered for enhanced safety in utility-scale photovoltaic applications requiring higher amperage. Designed for 1500VDC and 20x65mm PV fuses, these holders offer finger-safe (IP20) protection with a rotating fuse carrier, similar to Mersen's UltraSafe® line. The HP15FHP80 series provides two configurations to meet global installation needs. One option accepts standard PV rated wiring and comb bus bars for versatile end-use connections. The other accommodates wire and bus bar terminations. Constructed from high-performance UL 94 V-0 rated polymer, these fuse holders exhibit superior flammability resistance, exceptional durability, and robust dielectric withstand properties. SKU: HP15FHP80W. Manufacturer: Mersen. Country of Origin: US.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.








