Why Choose the Wöhner 31559 gPV Cylindrical Fuse Link?
The Wöhner 31559 is a high-performance gPV cylindrical fuse link specifically designed to protect photovoltaic (PV) systems against overloads and short circuits. Rated at 20 A and 1100 V DC, this 14 × 85 mm fuse link delivers dependable protection for solar strings, combiner boxes and inverter DC circuits operating in demanding environments.
Manufactured by Wöhner, a global leader in electrical power distribution technology, the 31559 complies with IEC 60269-1 and IEC 60269-6 standards. Its gPV utilisation category provides full-range protection for photovoltaic installations, helping to safeguard solar modules, string wiring and inverter inputs from damaging fault currents.
Featuring a 20 A current rating, 1100 V DC rated voltage and a 30 kA DC breaking capacity, the Wöhner 31559 offers reliable performance and long service life in residential, commercial and utility-scale photovoltaic systems.
Key Advantages
- Designed specifically for photovoltaic (gPV) protection.
- 20 A rated current.
- 1100 V DC rated voltage.
- 30 kA DC breaking capacity.
- 14 × 85 mm cylindrical format for compatible PV fuse holders.
- Porcelain body with halogen-free construction for long-term reliability.
Key Features
- Wöhner gPV cylindrical fuse link.
- 20 A rated current.
- 1100 V DC rated voltage.
- gPV utilisation category.
- 14 × 85 mm fuse size.
- 30 kA DC breaking capacity.
- Porcelain body.
- Halogen-free materials.
Reliable Protection for High-Voltage PV Systems
The Wöhner 31559 has been developed specifically for modern photovoltaic installations where dependable DC fault protection is essential. Its gPV operating category provides full-range protection against overloads and short circuits, helping to protect solar modules, combiner boxes, DC cabling and inverter inputs.
Its robust porcelain construction, high DC breaking capacity and compliance with international standards make it suitable for residential, commercial and utility-scale photovoltaic systems operating at up to 1100 V DC.
Typical Applications
- Solar PV string protection.
- Photovoltaic combiner boxes.
- DC inverter protection.
- Renewable energy systems.
- Industrial photovoltaic installations.
- Utility-scale solar farms.