Mersen M1048673 - Photovoltaic fuse gPV 1250VDC IEC 1250VDC UL Size 2XL 200A With DIN Type Blades For Direct Mount
Mersen

M1048673

Alternate Item Number: HP12NH2LGPV200B

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Overview

The Mersen M1048673 gPV photovoltaic fuse from the Helio-Protection® HP12NH series is a critical safety component for protecting photovoltaic (PV) systems against short circuits and overcurrent events. This fuse is designed as a main fuse for PV system cables, ensuring reliable operation in high-voltage DC applications. Key specifications include a 1250VDC voltage rating, 200A current rating, and a high interrupting rating of 50kA at 1250VDC, meeting IEC 60269-6 and UL 2579 PV standards. The fuse features Size 2XL dimensions with DIN type blades for direct mounting, enabling secure and efficient installation in PV systems. Power dissipation is rated at 12W at 0.7xIn and 29W at In, ensuring minimal energy loss during operation. Manufactured in the US, this Mersen fuse provides dependable protection for solar energy installations, preventing damage from fault currents and ensuring system longevity. It is ideal for use in PV arrays, combiner boxes, and inverters where high DC voltage and current cycling are common. The direct mounting design with DIN blades simplifies integration into existing PV system architectures.
  • 1250VDC voltage rating for high-voltage PV systems
  • 200A current rating with 50kA interrupting rating
  • Size 2XL with DIN type blades for direct mounting
  • Meets IEC 60269-6 and UL 2579 PV standards
  • Power dissipation: 12W at 0.7xIn, 29W at In
  • IEC 60269-6 and UL 2579 PV standards compliant
  • Manufactured in the US

Specifications

Amperage Rating
200 A
Application
All photovoltaic applications Inverter DC input protection Re-combiner applications (sub combiner, array combiner, master combiner)
Brand Name
Mersen
Connection
DIN Type Blades
Connection Material
Silver-Plated Copper
Connection Type
DIN Type Blades
Current Rating
200 A
DC Voltage Rating
1250 V
Mounting
Direct Mount
Mounting Type
Direct Mount
Series
Helio-Protection® HP12NH
Size
8.07 x 2.01 x 2.48 in
Size
205 x 51 x 63 mm
Size
2XL
Size
Size 2XL
Special Features
Global acceptance Low fault current interrupting capability Temperature cycle withstand capability Durable construction for enhanced system longevity High efficiency with low power losses Available in 3 versions: plain blade, direct mounted, direct mounted with striker
Standard
IEC 60269-6 UL 2579 RoHS compliance
Sub Brand
HelioProtection®
Type
Photovoltaic Fuses
Voltage Rating
1250VDC
Package Dimensions (L x W x H)
8.07 in x 2.01 in x 2.48 in
Package Dimensions (L x W x H)
205 mm x 51 mm x 63 mm
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.
9F61 Size B Clips 1.6in

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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.