Mersen Q1069100 - Photovoltaic fuse gR 800VAC IEC Size NH2 250A With DIN Type Blades For Clip
Mersen

Q1069100

Alternate Item Number: NH2GR80V250B

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Overview

The Mersen Q1069100 NH2 gR photovoltaic fuse-link is a high-reliability protection device designed for solar power systems. Rated at 800VAC and 250A, this fuse-link is engineered to safeguard photovoltaic cables and equipment from fault currents, including overloads and short circuits. With a full-range breaking capacity of 37kA, it functions as a sole protection device, eliminating the need for additional protective components in most applications. Key specifications include a 1000VDC voltage rating, power dissipation of 14W at 100% In and 34W at 70% x In, and compatibility with Mersen’s 800VAC fuse-switch-disconnectors via DIN type blades. The NH2 size ensures seamless integration with Mersen’s fuse-system protection solutions, providing a complete and reliable protection strategy for solar inverters and photovoltaic arrays. Manufactured in the US, the Q1069100 is UL Listed to 2579 and IEC 60269-6 certified (gPV type), meeting global photovoltaic safety standards. Its robust design and precise specifications make it an essential component for maintaining system integrity and operational safety in solar power installations.
  • 800VAC / 1000VDC rated photovoltaic fuse-link
  • 250A nominal current with 37kA interrupting rating
  • Full-range breaking capacity for sole protection device functionality
  • DIN type blades compatible with Mersen 800VAC fuse-switch-disconnectors
  • Power dissipation: 14W at 100% In, 34W at 70% x In

Specifications

AC Voltage Rating
800 V
Amperage Rating
250 A
Application
General purpose cable and line protection at 800VAC Solar installation AC combiner box
Brand Name
Mersen
Connection
DIN Type Blades
Connection Material
Silver-Plated Copper
Connection Type
DIN Type Blades For Clip
Current Rating
250A
Mounting
Clip
Size
5.91 x 2.01 x 2.48 in
Size
150 x 51 x 63 mm
Size
NH2
Special Features
Low fault current interrupting capability Temperature cycle withstand capability Durable construction for enhanced system longevity High efficiency with low power losses Available in two versions: Plain Blade & Direct Mounting
Standard
IEC 60269-4 RoHS compliance UL Recognized components: UL 248-13, UL 248-1
Sub Brand
HelioProtection®
Type
Photovoltaic Fuses
Voltage Rating
800VAC
Package Dimensions (L x W x H)
5.91 in x 2.01 in x 2.48 in
Package Dimensions (L x W x H)
150 mm x 51 mm x 63 mm
Package Weight (Imperial)
1.323 lb
Package Weight (Metric)
0.600 kg
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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.

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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.