Wöhner 31210 10 x 38 mm cylindrical semiconductor fuse link rated at 12 A, 690 V AC with gR operating class for industrial semiconductor protection.
£10.50
The Wöhner 31210 is a premium 10 × 38 mm cylindrical semiconductor fuse link designed to provide rapid and reliable protection for sensitive power electronic equipment. Manufactured by Wöhner, this IEC-compliant fuse is specifically engineered to safeguard 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 31210 features a gR operating class, delivering full-range protection for semiconductor devices. Its durable porcelain body offers excellent thermal stability while the compact design ensures compatibility with standard 10 × 38 mm fuse holders.
With a rated current of 12 A, a 690 V AC voltage rating and a high 200 kA breaking capacity, the Wöhner 31210 is ideally suited for industrial automation, variable speed drives, UPS systems, servo drives and power conversion equipment where fast fault interruption is essential.
The Wöhner 31210 is engineered to interrupt fault currents rapidly, protecting valuable semiconductor devices from excessive thermal and electrical stress. Its fast-acting gR characteristic minimises let-through energy, helping maximise the reliability and service 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.
| Current | 12 A |
|---|---|
| Manufacturer | Wöhner |
| Model | 31210 |
| Product type | Cylindrical semiconductor fuse link |
| Rated current | 12 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 | 3.1 W (full load) |
| Material | Porcelain |
| Halogen free | Yes |
| Dimensions (W × H × D) | 10 × 10 × 38 mm |
It is designed to protect semiconductor devices such as IGBTs, thyristors, rectifiers and power converters against overloads and short circuits.
The Wöhner 31210 has a 12 A rated current.
It is suitable for electrical systems operating up to 690 V AC.
The gR operating class provides fast full-range protection specifically developed for semiconductor devices and sensitive power electronic equipment.
The Wöhner 31210 is designed for standard 10 × 38 mm IEC cylindrical fuse holders.
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.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...