Wöhner 31214 10 x 38 mm cylindrical semiconductor fuse link rated at 30 A, 690 V AC with gR operating class for industrial semiconductor protection.
£11.61
The Wöhner 31214 is a high-performance 10 × 38 mm cylindrical semiconductor fuse link designed to provide exceptionally fast and reliable protection for sensitive power electronic equipment. Manufactured by Wöhner, this IEC-compliant fuse protects semiconductor devices such as IGBTs, thyristors, rectifiers and power converters against damaging overloads and short circuits.
Manufactured in accordance with IEC 60269-1 and IEC 60269-4, the Wöhner 31214 features a gR operating class, delivering full-range semiconductor protection. Its durable porcelain body provides excellent thermal stability while the compact 10 × 38 mm design allows installation into standard cylindrical fuse holders.
With a rated current of 30 A, a 690 V AC voltage rating and a high 200 kA breaking capacity, the Wöhner 31214 is ideal for industrial automation, servo drives, frequency converters, UPS systems and other demanding power electronic applications requiring rapid fault interruption.
The Wöhner 31214 is engineered to interrupt high fault currents extremely quickly, helping to minimise thermal stress and protect expensive semiconductor devices. Its fast-acting gR characteristic reduces let-through energy, improving equipment reliability and extending the service life of industrial power electronic systems.
Its compact IEC-standard construction allows straightforward installation into compatible fuse holders used in industrial control panels, inverters, converters, motor drives and automation systems where dependable semiconductor protection is essential.
| Current | 30 A |
|---|---|
| Manufacturer | Wöhner |
| Model | 31214 |
| Product type | Cylindrical semiconductor fuse link |
| Rated current | 30 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 | 8.2 W (full load) |
| Power dissipation (typical 80% load) | 5.2 W |
| Material | Porcelain |
| Halogen free | Yes |
| Dimensions (W × H × D) | 10 × 10 × 38 mm |
It protects semiconductor devices including IGBTs, thyristors, rectifiers and power converters from overloads and short circuits.
The Wöhner 31214 has a 30 A rated current.
It is designed for electrical systems operating up to 690 V AC.
The gR utilisation category provides fast full-range protection specifically for semiconductor devices and sensitive power electronic equipment.
The Wöhner 31214 is designed for standard 10 × 38 mm IEC cylindrical fuse holders.
Wöhner semiconductor fuse links are trusted by OEMs, panel builders and industrial automation engineers worldwide for dependable protection of high-value power electronic equipment.
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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...