Why Choose the Wöhner 31543 Cylindrical Fuse Link?
The Wöhner 31543 is a high-performance 10 × 38 mm gPV cylindrical fuse link designed to provide reliable overcurrent protection for photovoltaic (PV) systems. Manufactured by Wöhner, this fuse is engineered specifically for protecting DC circuits in solar installations, helping safeguard equipment against overloads and short-circuit faults while maintaining dependable system performance.
Designed in accordance with IEC 60269-1 and IEC 60269-6 standards, the Wöhner 31543 delivers dependable protection for PV strings and combiner boxes. Its compact design allows easy installation into compatible 10 × 38 mm fuse holders, making it suitable for both new installations and maintenance applications.
With an 8 A rated current, 1000 V DC rating and 30 kA breaking capacity, the Wöhner 31543 provides reliable protection for modern photovoltaic systems where safe DC isolation and fault protection are essential.
Key Advantages
- Designed specifically for photovoltaic (gPV) protection.
- 1000 V DC rated for modern solar installations.
- 8 A rated current for PV string protection.
- 30 kA breaking capacity for high fault interruption performance.
- Compatible with standard 10 × 38 mm fuse holders.
- Manufactured to IEC standards for dependable long-term operation.
Key Features
- Wöhner cylindrical fuse link.
- gPV operating class for photovoltaic applications.
- 8 A rated current.
- 1000 V DC rated voltage.
- 30 kA DC breaking capacity.
- 10 × 38 mm cylindrical size.
- Porcelain body with halogen-free construction.
- Suitable for protecting PV strings, combiner boxes and DC circuits.
Reliable Protection for Photovoltaic Systems
Photovoltaic fuse links are specifically designed to safely interrupt DC fault currents generated within solar power systems. Unlike standard AC fuses, gPV fuse links are engineered to protect photovoltaic strings across their entire operating range, ensuring reliable protection for solar modules, inverters and associated equipment.
The Wöhner 31543 helps maximise system reliability by providing fast and dependable fault protection in demanding outdoor and industrial PV installations.
Typical Applications
- Solar photovoltaic string protection.
- PV combiner boxes.
- DC distribution systems.
- Renewable energy installations.
- Commercial and industrial solar arrays.
- Battery energy storage DC protection.