Mersen F1025391 DC121GPV12C100E square-body gPV photovoltaic fuse rated at 100 A and 1200 V DC for commercial and utility-scale solar installations.
£217.38
The Mersen F1025391 is a high-performance gPV photovoltaic fuse-link engineered to provide reliable overcurrent protection for modern solar power systems operating at up to 1200 V DC. Part of the trusted Mersen HelioProtection® DC121 range, it is specifically designed to protect photovoltaic strings, combiner boxes, inverter inputs and associated DC cabling against overloads and short circuits.
Designed in accordance with IEC 60269-1 and IEC 60269-6, the DC121GPV12C100E provides full-range gPV protection for photovoltaic installations. Its square-body construction offers excellent thermal performance and dependable fault interruption, helping to maximise system reliability whilst protecting valuable renewable energy equipment.
With a 100 A current rating, 1200 V DC voltage rating and compact size 121 construction, the Mersen F1025391 is ideally suited to commercial, industrial and utility-scale photovoltaic systems requiring dependable high-voltage DC protection.
Purpose-designed photovoltaic fuse-links provide essential protection against overloads and short circuits within DC solar arrays. Correctly specified gPV fuses help protect photovoltaic modules, combiner boxes, inverter equipment and associated cabling whilst improving the safety and long-term reliability of renewable energy systems.
The Mersen HelioProtection® DC121 range has been developed specifically for photovoltaic applications, combining high DC voltage capability with dependable fault interruption for demanding commercial and utility-scale renewable energy systems.
| Current | 100 A |
|---|---|
| Voltage | 200 V |
| Manufacturer | Mersen |
| Series | HelioProtection® DC121 |
| Manufacturer part number | F1025391 |
| Catalogue number | DC121GPV12C100E |
| Product type | Square-body gPV photovoltaic fuse-link |
| Rated current | 100 A |
| Rated voltage | 1200 V DC |
| Fuse characteristic | gPV |
| Fuse size | 121 |
| Standards | IEC 60269-1, IEC 60269-6 |
| Application | Solar photovoltaic protection |
| EAN | 3605340526479 |
The Mersen F1025391 protects photovoltaic DC circuits against overloads and short circuits in commercial and utility-scale solar installations.
This fuse has a 100 A rated current.
The DC121GPV12C100E is designed for photovoltaic systems operating at up to 1200 V DC.
The gPV operating characteristic provides full-range protection specifically developed for photovoltaic DC circuits.
It is commonly installed in photovoltaic combiner boxes, inverter DC input assemblies and other high-voltage solar power distribution equipment.
Mersen HelioProtection® photovoltaic fuse-links are trusted worldwide by solar installers, EPC contractors and renewable energy engineers for dependable protection of commercial and utility-scale photovoltaic systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...