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MERSEN FUSE 900VDC 10X85 gPV 25A A1008757
Mersen A1008757 DC10HEL9C25 HelioProtection 10 × 85 mm gPV photovoltaic fuse-link rated at 25 A and 900 V DC for solar string, array and combiner-box protection.
£9.86
Why Choose the Mersen A1008757 HelioProtection Photovoltaic Fuse?
The Mersen A1008757, catalogue reference DC10HEL9C25, is a cylindrical photovoltaic fuse-link designed specifically to protect solar power systems against reverse-current, line and ground faults. Part of the Mersen HelioProtection® DC10HEL series, it provides reliable full-range protection for photovoltaic strings, arrays and associated DC equipment.
This fuse features a gPV operating characteristic developed for the distinctive low-level fault currents produced by photovoltaic arrays. Its enhanced construction withstands repeated temperature and current cycling, helping to extend service life in outdoor solar installations exposed to changing operating conditions.
With a rated current of 25 A, a rated voltage of 900 V DC and a compact 10 × 85 mm cylindrical format, the A1008757 is suitable for string-level protection in grid-connected and off-grid photovoltaic systems. Its ferrule terminals allow straightforward clip mounting in compatible fuse holders and combiner-box assemblies.
Key Advantages
- Purpose-designed gPV protection for photovoltaic DC circuits.
- 25 A rated current for solar string and array applications.
- 900 V DC voltage rating for high-voltage photovoltaic systems.
- Low minimum breaking-current capability for typical PV fault conditions.
- Enhanced resistance to repeated temperature and current cycling.
- Compact cylindrical construction for installation in compatible fuse clips.
Key Features
- Mersen HelioProtection® DC10HEL photovoltaic fuse-link.
- Manufacturer reference: A1008757.
- Catalogue reference: DC10HEL9C25.
- 25 A rated current.
- 900 V DC rated voltage.
- gPV full-range photovoltaic fuse characteristic.
- 10 × 85 mm cylindrical fuse size.
- Ferrule terminals for clip-mounted installation.
- Designed for grid-connected and off-grid photovoltaic systems.
- Suitable for continuous current and temperature cycling.
Reliable Protection for Photovoltaic DC Circuits
Photovoltaic systems can generate relatively low but sustained fault currents that require specialised protective devices. The Mersen A1008757 is engineered to interrupt these currents safely, helping to protect solar modules, conductors, combiner boxes and inverter input circuits from thermal damage.
Its gPV full-range characteristic provides protection against both overload and short-circuit conditions. The fuse’s temperature-cycle withstand capability also supports dependable performance throughout the changing environmental and electrical conditions experienced by photovoltaic installations.
Typical Applications
- Photovoltaic string protection.
- Solar array and sub-array circuits.
- PV combiner and junction boxes.
- Solar inverter DC input circuits.
- Grid-connected photovoltaic systems.
- Off-grid solar power installations.
- Battery charge controllers and renewable energy equipment.
Technical Specifications
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| Current | 25 A | |
|---|---|---|
| Voltage | 900 V | |
| Device Type | Fuse link | |
| Fuse Type | Cylindrical, PV (gPV) | |
| Fuse Size | 10x85 mm | |
| Fuse Class | gPV | |
| Manufacturer | Mersen | |
| Series | HelioProtection® DC10HEL | |
| Model | A1008757 | |
| Catalogue reference | DC10HEL9C25 | |
| Product type | Cylindrical photovoltaic fuse-link | |
| Rated current | 25 A | |
| Rated voltage | 900 V DC | |
| Operating characteristic | gPV | |
| Current type | DC | |
| Breaking capacity | 12 kA | |
| Minimum breaking current | 1.3 × rated current | |
| Fuse size | 10 × 85 mm | |
| Mounting type | Clip mounting | |
| Terminal type | Cylindrical ferrule | |
| Body construction | Ceramic cylindrical body | |
| Applicable standard | IEC photovoltaic fuse requirements |
Frequently Asked Questions
What is the Mersen A1008757 used for?
The Mersen A1008757 is used to protect photovoltaic strings, solar arrays and associated DC equipment against reverse-current, ground and line faults.
What is the current rating of the A1008757 fuse?
The A1008757 has a rated current of 25 A.
What voltage is the Mersen A1008757 rated for?
This photovoltaic fuse is rated for operation at up to 900 V DC.
What does the gPV fuse characteristic mean?
A gPV fuse provides full-range protection specifically for photovoltaic circuits, covering overload conditions and short-circuit faults.
What size is the Mersen A1008757?
The fuse has a cylindrical format measuring approximately 10 × 85 mm and is designed for installation in a compatible clip-mounted fuse holder.
Trusted Protection for Solar Power Systems
Mersen HelioProtection® fuse-links are widely used by solar installers, equipment manufacturers and renewable energy engineers to provide dependable protection for photovoltaic strings and high-voltage DC systems.
