Wöhner 31205 10 x 38 mm cylindrical semiconductor fuse link rated at 1 A, 690 V AC with gR operating class for industrial power electronic protection.
£10.50
The Wöhner 31205 is a high-performance 10 × 38 mm cylindrical fuse link designed for the protection of semiconductor devices in industrial electrical systems. Manufactured by Wöhner, this IEC-compliant fuse provides rapid fault interruption for sensitive power electronics, making it ideal for use in drives, converters, UPS systems and industrial automation equipment.
Designed in accordance with IEC 60269-4, the Wöhner 31205 features a gR operating class, offering full-range protection for semiconductor devices against overloads and short circuits. Its compact design enables installation in standard 10 × 38 mm fuse holders while delivering excellent electrical performance in demanding industrial applications.
With a 1 A rated current, 690 V AC voltage rating and a high 200 kA breaking capacity, the Wöhner 31205 is suitable for protecting power semiconductors and electronic equipment requiring fast and reliable fault protection.
The Wöhner 31205 is engineered to protect semiconductor devices such as IGBTs, thyristors, rectifiers and power converters from damaging fault currents. Its fast-acting gR characteristic helps minimise energy let-through, reducing the risk of costly equipment damage and downtime.
Its compact IEC-standard construction makes the fuse suitable for installation in industrial control panels, power conversion equipment and automation systems where dependable semiconductor protection is essential.
| Current | 1 A |
|---|---|
| Manufacturer | Wöhner |
| Model | 31205 |
| Product type | Cylindrical semiconductor fuse link |
| Rated current | 1 A |
| Rated voltage | 690 V AC |
| Fuse size | 10 × 38 mm |
| Operating class | gR |
| Breaking capacity | 200 kA AC |
| Standard | IEC 60269-4 |
| Power dissipation | 0.9 W |
| Mounting | Standard 10 × 38 mm fuse holder |
| Application | Semiconductor protection |
It is designed to protect semiconductor devices including IGBTs, thyristors, rectifiers and power electronic equipment against overloads and short circuits.
The Wöhner 31205 has a 1 A rated current.
It is rated for operation on electrical systems up to 690 V AC.
The gR operating class provides fast full-range protection specifically designed for semiconductor devices and power electronic equipment.
The Wöhner 31205 fits standard 10 × 38 mm IEC cylindrical fuse holders.
Wöhner semiconductor fuse links are trusted by panel builders, OEM manufacturers and automation engineers to provide dependable protection for 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...