Mersen M1069097 - Photovoltaic fuse gR 800VAC IEC Size NH1 125A With DIN Type Blades For Clip
Mersen

M1069097

Alternate Item Number: NH1GR80V125B

Contact for Pricing

Minimum Qty: 3

Multiplier: 3

*Contact for lower quantities*

Overview

The Mersen M1069097 is a gR class photovoltaic fuse-link designed for robust protection in solar energy systems. Engineered to meet the specific demands of 800VAC photovoltaic applications, this fuse offers full-range breaking capacity, capable of interrupting fault currents from minor overloads up to its rated breaking capacity. Its NH1 size and DIN type blades ensure compatibility with standard fuse holders and switch-disconnectors. With a nominal current rating of 125A and a voltage rating of 800VAC (IEC), it provides essential overcurrent protection for solar arrays and associated DC/AC inverters. The fuse-link's design prioritizes safety and reliability, making it a crucial component for safeguarding photovoltaic installations against electrical faults. Mersen also offers complementary 800VAC fuse-switch-disconnectors for a complete fuse-system protection solution. Key specifications include a 1000 VDC rating, 125A nominal current, and a breaking capacity of 50 kA. Power dissipation at 100% In is 7.4W, and at 0.7xIn is 18W. The dimensions for NH1 size are detailed in the catalog, with specific measurements for A, B, C, D, E, F, G, H, I, J, K, L, M, N, and overall dimensions provided for direct mounting applications.
  • Mersen gR class photovoltaic fuse-link for 800VAC systems
  • 125A nominal current rating with 50kA breaking capacity
  • NH1 size with DIN type blades for standard mounting
  • Full-range breaking capacity protects against overloads and faults
  • Ideal for DC/AC solar inverters and PV system protection

Specifications

AC Voltage Rating
800 V
Amperage Rating
125 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
125A
Mounting
Clip
Size
5.31 x 1.56 x 2.07 in
Size
135 x 39.5 x 52.5 mm
Size
NH1
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)
5.31 in x 1.56 in x 2.07 in
Package Dimensions (L x W x H)
135 mm x 39.5 mm x 52.5 mm
Package Weight (Imperial)
0.882 lb
Package Weight (Metric)
0.400 kg
Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount

GPM-SRR90

Fuse Block 600VAC 600VDC Class CC 30A 1/4in Quick Connect / Solder 90 angle screw Knob Panel Mount
Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20

E1062696

Fuse Holder Modulostar® Size 10x38 IEC 690VAC 690VDC 3-Pole IP20
Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20

C331156

Fuse Holder UltraSafe™ 800VAC 1000VDC UL Fuse size 14x51 1-Pole Visual Indicator Microswitch Pressure Plate IP20
Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8

1SCM8

Fuse Block 1500VAC 1500VDC 400A 1-Pole Stud M8
9F61 Size B Clips 1.6in

9F61BWW460

9F61 Size B Clips 1.6in
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.

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.