Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
31209 Wohner cylindr. fuse link 10 A
Wöhner 31209 10 x 38 mm cylindrical semiconductor fuse link rated at 10 A, 690 V AC with gR operating class for industrial semiconductor protection.
£8.40
Why Choose the Wöhner 31209 Cylindrical Semiconductor Fuse Link?
The Wöhner 31209 is a premium 10 × 38 mm cylindrical semiconductor fuse link designed to provide rapid and dependable protection for sensitive power electronic equipment. Manufactured by Wöhner, this IEC-compliant fuse is specifically engineered to protect semiconductors including IGBTs, thyristors, rectifiers and power converters from overloads and short circuits.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, the Wöhner 31209 features a gR operating class, providing full-range protection for semiconductor devices. Its porcelain body delivers excellent thermal performance while the compact design allows installation into standard 10 × 38 mm fuse holders.
With a rated current of 10 A, a 690 V AC voltage rating and a high 200 kA breaking capacity, the Wöhner 31209 is ideal for industrial automation, servo drives, UPS systems, inverters and power conversion equipment where fast fault interruption is essential.
Key Advantages
- Designed specifically for semiconductor protection.
- 10 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.
- 10 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 31209 is engineered to interrupt fault currents rapidly, helping protect valuable semiconductor devices from excessive thermal and electrical stress. Its fast-acting gR characteristic minimises let-through energy, helping maximise the reliability and operational life of industrial power electronic equipment.
Its compact IEC-standard construction enables straightforward installation into compatible fuse holders used in industrial control panels, power converters, servo systems and automation equipment where dependable semiconductor protection is required.
Typical Applications
- Variable frequency drives.
- Servo drive systems.
- Power converters and inverters.
- UPS systems.
- Industrial automation equipment.
- Semiconductor protection circuits.
Technical Specifications
Tick the specs you need, then view products that match.
| Current | 10 A | |
|---|---|---|
| Manufacturer | Wöhner | |
| Model | 31209 | |
| Product type | Cylindrical semiconductor fuse link | |
| Rated current | 10 A | |
| Rated voltage | 690 V AC | |
| Fuse size | 10 × 38 mm | |
| Operating class | gR | |
| Breaking capacity | 200 kA AC | |
| Standards | IEC 60269-1 / IEC 60269-4 | |
| Power dissipation | 2.1 W | |
| Material | Porcelain | |
| Halogen free | Yes | |
| Dimensions (W × H × D) | 10 × 10 × 38 mm |
Frequently Asked Questions
What is the Wöhner 31209 used for?
It is designed to protect semiconductor devices such as IGBTs, thyristors, rectifiers and power converters against overloads and short circuits.
What is the current rating of this fuse?
The Wöhner 31209 has a 10 A rated current.
What voltage is this fuse designed for?
It is suitable for electrical systems operating up to 690 V AC.
What does the gR operating class mean?
The gR operating class provides fast full-range protection specifically developed for semiconductor devices and sensitive power electronic equipment.
Which fuse holders is this compatible with?
The Wöhner 31209 is designed for standard 10 × 38 mm IEC cylindrical fuse holders.
Trusted for Semiconductor Protection
Wöhner semiconductor fuse links are trusted by panel builders, OEM manufacturers and automation engineers for dependable protection of sensitive power electronic equipment in demanding industrial environments.
