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Minimum Qty: 12
Multiplier: 12
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Overview
- 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 |

HP15FHM32B
Fuse Holder IEC+UL/CSA HelioProtection® Size 10x85 1500VDC IEC 1500VDC UL 1-Pole Cage Clamp With LED DIN Rail mounting
E91/32SPV
E 91/32s PV is a fuseholder for overcurrent and short circuit protection in PV applications
LFXV150601C
The Littelfuse LFXV15 series fuse block and cover is designed to hold 1500 V size 20 x 127 mm fuses rated 35–60 amperes. Suitable for photovoltaic systems (string and high-capacity combiner boxes) with fault currents up to 50 kA. With available ampere ratings up to 60 A, more strings can be pre-combined in harnesses to reduce the number of inputs into combiner boxes, thereby decreasing installation time and labor costs.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.



