Mersen Z1008756 DC10HEL12C20 HelioProtection gPV photovoltaic fuse link rated at 20 A and 1200 V DC, with a 12 kA breaking capacity and cylindrical clip-mounted construction.
£16.43
The Mersen Z1008756, catalogue number DC10HEL12C20, is a specialist gPV photovoltaic fuse link designed to protect solar power systems against damaging overcurrents, ground faults and line faults. As part of the Mersen HelioProtection® DC10HEL series, it is engineered specifically for the electrical characteristics and demanding operating conditions found in photovoltaic installations.
Rated at 20 A and 1200 V DC, the Z1008756 is suitable for protecting photovoltaic strings, array conductors, combiner boxes and inverter input circuits. Its gPV operating characteristic enables safe interruption of the relatively low fault currents commonly produced by solar arrays, with a minimum breaking capability designed around approximately 1.30 times the fuse's rated current.
The cylindrical 10.3 × 84 mm fuse body is designed for installation in a compatible clip-mounted fuse holder. Silver-plated copper terminals, low power dissipation and enhanced resistance to repeated temperature and current cycling support dependable long-term operation in both grid-connected and off-grid photovoltaic systems.
Photovoltaic arrays can produce persistent DC fault currents that require fuses specifically designed for solar applications. Standard industrial fuse links may not respond correctly to the comparatively low fault-current levels generated by photovoltaic modules.
The Mersen Z1008756 provides reliable isolation of affected strings and conductors before excessive current damages solar modules, cabling, combiner equipment or inverter components. Its high-voltage construction and temperature-cycling performance make it suitable for long-term operation in demanding renewable energy installations.
| Current | 20 A |
|---|---|
| Voltage | 200 V |
| Manufacturer | Mersen |
| Series | HelioProtection® DC10HEL |
| Item number | Z1008756 |
| Catalogue number | DC10HEL12C20 |
| Product type | Photovoltaic fuse link |
| Fuse utilisation category | gPV |
| Rated current | 20 A |
| Rated voltage | 1200 V DC |
| Maximum rated breaking capacity | 12 kA at 1200 V DC |
| Breaking-capacity time constant | L/R = 2 ms |
| Melting I²t | 578 A²s |
| Clearing I²t at rated voltage | 1100 A²s |
| Mounting type | Clip mounting |
| Terminal type | Cylindrical |
| Terminal material | Silver-plated copper |
| Product diameter | 10.3 mm |
| Product length | 84 mm |
| Power dissipation at rated current | 4.1 W |
| Power dissipation at 0.7 × rated current | 1.8 W |
| Product weight | 0.014 kg |
| RoHS compliant | Yes |
| EAN / UPC | 3605340494457 |
The Mersen Z1008756 protects photovoltaic strings, cables, combiner boxes and inverter input circuits against ground faults, line faults and damaging overcurrents.
The fuse has a rated current of 20 A.
The Z1008756 is rated for photovoltaic DC circuits operating at up to 1200 V DC.
The fuse has a maximum rated breaking capacity of 12 kA at 1200 V DC, with an L/R time constant of 2 ms.
The cylindrical fuse link is installed in a compatible clip-mounted photovoltaic fuse holder designed for 10 × 85 mm fuse links.
Mersen HelioProtection® photovoltaic fuse links are used by solar installers, system integrators and renewable energy engineers to provide dependable DC protection in grid-connected and off-grid 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...