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MERSEN FUSE 1200VDC 10X85 gPV 20A Z1008756
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.
£10.68
Why Choose the Mersen Z1008756 DC10HEL12C20 Photovoltaic Fuse?
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.
Key Advantages
- Purpose-designed gPV fuse protection for photovoltaic systems.
- 20 A rated current for solar string and array circuits.
- 1200 V DC voltage rating for high-voltage photovoltaic installations.
- Low minimum breaking-current capability for typical PV fault conditions.
- 12 kA DC breaking capacity at the rated voltage.
- Enhanced construction withstands repeated temperature and current cycling.
- Low power dissipation helps reduce heat and energy losses.
- Compact cylindrical design for space-efficient fuse-holder installation.
Key Features
- Mersen HelioProtection® DC10HEL photovoltaic fuse series.
- 20 A rated current.
- 1200 V DC rated voltage.
- gPV full-range photovoltaic characteristic.
- 12 kA maximum DC breaking capacity.
- Cylindrical 10.3 × 84 mm fuse-link format.
- Silver-plated copper terminal material.
- Designed for clip mounting.
- Low rated-current power dissipation of 4.1 W.
- RoHS-compliant construction.
Reliable Protection for Photovoltaic Strings
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.
Typical Applications
- Photovoltaic string protection.
- Solar array conductor protection.
- PV combiner and sub-combiner boxes.
- Solar inverter DC input circuits.
- Commercial rooftop photovoltaic systems.
- Utility-scale solar power plants.
- Off-grid solar energy installations.
- Grid-connected photovoltaic systems.
Technical Specifications
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| Voltage | 1200 V | |
|---|---|---|
| Current | 20 A | |
| Device Type | Fuse link | |
| Fuse Type | PV (gPV) | |
| Fuse Size | 10x85 mm | |
| Fuse Class | gPV | |
| 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 |
Frequently Asked Questions
What is the Mersen Z1008756 used for?
The Mersen Z1008756 protects photovoltaic strings, cables, combiner boxes and inverter input circuits against ground faults, line faults and damaging overcurrents.
What is the current rating of the Z1008756 fuse?
The fuse has a rated current of 20 A.
What voltage can the Mersen Z1008756 handle?
The Z1008756 is rated for photovoltaic DC circuits operating at up to 1200 V DC.
What is the breaking capacity of this fuse?
The fuse has a maximum rated breaking capacity of 12 kA at 1200 V DC, with an L/R time constant of 2 ms.
How is the Mersen Z1008756 installed?
The cylindrical fuse link is installed in a compatible clip-mounted photovoltaic fuse holder designed for 10 × 85 mm fuse links.
Trusted Photovoltaic Circuit Protection
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.
