Why Choose the Wöhner 31208 Cylindrical Semiconductor Fuse Link?
The Wöhner 31208 is a premium 10 × 38 mm cylindrical semiconductor fuse link engineered to provide rapid and reliable protection for sensitive power electronic equipment. Manufactured by Wöhner, this IEC-compliant fuse is specifically designed to protect semiconductors including IGBTs, thyristors, rectifiers and power converters against overloads and short circuits.
Designed in accordance with IEC 60269-1 and IEC 60269-4, the Wöhner 31208 features a gR operating class, delivering full-range protection for semiconductor devices. Its robust porcelain construction offers excellent thermal stability, while the compact design ensures compatibility with standard 10 × 38 mm fuse holders.
With a rated current of 6 A, a 690 V AC voltage rating and a high 200 kA breaking capacity, the Wöhner 31208 is ideal for industrial automation, variable speed drives, UPS systems and power conversion equipment requiring dependable fault protection.
Key Advantages
- Designed specifically for semiconductor protection.
- 6 A rated current for sensitive power electronic equipment.
- 690 V AC operating voltage for industrial applications.
- gR operating class provides fast full-range protection.
- 200 kA breaking capacity for dependable fault interruption.
- Compatible with standard 10 × 38 mm fuse holders.
Key Features
- Wöhner cylindrical semiconductor fuse link.
- 6 A rated current.
- 690 V AC rated voltage.
- 10 × 38 mm fuse size.
- gR utilisation category.
- 200 kA AC breaking capacity.
- Porcelain body with halogen-free construction.
- Manufactured to IEC 60269-1 and IEC 60269-4.
Fast Protection for Sensitive Power Electronics
The Wöhner 31208 is designed to interrupt fault currents extremely quickly, helping protect valuable semiconductor devices from excessive thermal and electrical stress. Its fast-acting gR characteristic minimises let-through energy, helping extend the operational life of industrial power electronic equipment.
Its standard IEC cylindrical design enables straightforward installation into compatible fuse holders used in industrial control panels, servo systems, power converters and automation equipment where reliable semiconductor protection is essential.
Typical Applications
- Variable frequency drives.
- Servo drive systems.
- Power converters and inverters.
- UPS systems.
- Industrial automation equipment.
- Semiconductor protection circuits.