Wöhner 31400 Class CC time-delay cylindrical fuse link rated at 12 A, 600 V AC and 300 V DC with a 200 kA interrupting capacity for industrial control transformer and circuit protection.
£23.50
The Wöhner 31400 is a premium Class CC time-delay cylindrical fuse link designed to provide reliable overcurrent and short-circuit protection for industrial control transformer circuits and other critical electrical applications. Designed for use in industrial control panels, switchgear and OEM machinery, it complies with UL 248-1 and UL 248-4 standards for dependable protection in North American electrical systems.
With a 12 A rated current, 600 V AC operating voltage and a time-delay operating characteristic, the Wöhner 31400 is engineered to withstand temporary transformer and equipment inrush currents while providing dependable protection against sustained overloads and short-circuit faults. It also carries a 300 V DC rating, making it suitable for a wide range of industrial control applications.
Constructed with a robust porcelain body, the fuse delivers excellent thermal stability, high interrupting capacity and long service life. Its compact Class CC 10 × 38 mm format allows straightforward installation into compatible fuse holders while maintaining excellent electrical safety and reliability.
The Wöhner 31400 is specifically developed to protect control transformers and sensitive industrial control circuits. Its time-delay characteristic allows temporary transformer energisation currents without unnecessary fuse operation while maintaining effective protection against sustained overloads and short-circuit faults.
Its compact dimensions, high interrupting capacity and compliance with recognised UL standards make it an ideal choice for industrial automation systems, OEM machinery and electrical control panels where reliable circuit protection is essential.
| Current | 12 A |
|---|---|
| Manufacturer | Wöhner |
| Model | 31400 |
| Type number | ATQR |
| Product type | Class CC cylindrical fuse link |
| Rated current | 12 A |
| Rated voltage AC | 600 V AC |
| Rated voltage DC | 300 V DC |
| Rated frequency | 50 / 60 Hz |
| Fuse size | Class CC, 10 × 38 mm |
| Operating characteristic | Time delay |
| Short-circuit current rating AC | 200 kA |
| Short-circuit current rating DC | 100 kA |
| Primary application | Control transformer protection |
| Standards | UL 248-1, UL 248-4 |
| Approval | UL |
| UL file | E2137 |
| Body material | Porcelain |
| Halogen-free | Yes |
| Dimensions (W × H × D) | 10 × 10 × 38 mm |
| Weight | approx. 8 g |
| Pack quantity | 10 |
| EAN | 4021267314002 |
The Wöhner 31400 is designed to protect industrial control transformers and electrical control circuits against overloads and short-circuit faults.
The Wöhner 31400 has a rated current of 12 A.
The fuse is rated for operation at up to 600 V AC and 300 V DC.
The time-delay design allows temporary transformer and equipment inrush currents without nuisance operation while maintaining reliable protection against sustained overloads and short-circuit faults.
The Wöhner 31400 is a Class CC 10 × 38 mm fuse link and should be installed in a compatible Class CC fuse holder.
Wöhner Class CC fuse links are trusted by panel builders, OEM manufacturers and industrial maintenance engineers for delivering dependable circuit protection, high interrupting capacity and long-term operational reliability.
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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...