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31342 Wohner fuse link 3 A, 600 V AC, time delay, Class J
Wöhner 31342 Mersen Class J time-delay cylindrical fuse link rated at 3 A, 600 V AC and 500 V DC for industrial circuit protection.
£25.43
Why Choose the Wöhner 31342 Class J Fuse Link?
The Wöhner 31342 is a premium Class J time-delay cylindrical fuse link designed to provide dependable overcurrent and short-circuit protection for industrial electrical installations. Manufactured by Mersen for the Wöhner product range, it is engineered for applications requiring reliable circuit protection while allowing temporary inrush currents during motor starting and equipment energisation.
Rated at 3 A, the Wöhner 31342 supports operating voltages up to 600 V AC and 500 V DC. Its time-delay operating characteristic reduces nuisance fuse operation while maintaining excellent protection against sustained overloads and high fault currents. The fuse complies with UL 248-8 and is intended for use in UL feeder circuits above 250 V.
The compact 21 × 57 mm Class J format allows installation in compatible Class J fuse holders within industrial control panels, switchboards and OEM machinery. Its porcelain, halogen-free construction provides excellent thermal and mechanical durability for demanding industrial environments.
Key Advantages
- Reliable Class J time-delay fuse protection.
- 3 A rated current for low-current industrial circuits.
- Suitable for systems up to 600 V AC.
- Supports DC applications up to 500 V DC.
- Time-delay characteristic tolerates temporary inrush currents.
- Compact 21 × 57 mm cylindrical format.
- Compatible with standard Class J fuse holders.
Key Features
- Wöhner Class J fuse link.
- Manufactured by Mersen.
- 3 A rated current.
- 600 V AC rated voltage.
- 500 V DC rated voltage.
- Time-delay operating characteristic.
- Class J 30 A frame size.
- 200 kA AC interrupting capacity.
- 100 kA DC interrupting capacity.
- Porcelain, halogen-free construction.
Reliable Time-Delay Protection for Industrial Control Circuits
The Wöhner 31342 is designed to withstand temporary current surges while responding rapidly to sustained overloads and short-circuit conditions. This makes it well suited to protecting control circuits, automation equipment, instrumentation and auxiliary power supplies that experience normal start-up inrush currents.
Installed in a compatible Class J fuse holder, the fuse provides dependable protection for industrial control systems while helping minimise unnecessary downtime caused by nuisance fuse operation.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- Machine control circuits.
- Electrical switchboards.
- OEM machinery.
- Industrial AC and DC power distribution.
Technical Specifications
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| Current | 3 A | |
|---|---|---|
| Manufacturer | Wöhner | |
| Fuse manufacturer | Mersen | |
| Model | 31342 | |
| Alternative SKU | 31342000 | |
| Product type | Cylindrical fuse link | |
| Fuse class | Class J | |
| Frame size | Class J 30 A | |
| Operating characteristic | Time delay | |
| Rated current | 3 A | |
| Rated voltage AC | 600 V | |
| Rated voltage DC | 500 V | |
| Rated frequency | 50 / 60 Hz | |
| AC short-circuit current rating | 200 kA | |
| DC short-circuit current rating | 100 kA | |
| Dimensions (W × H × D) | 21 × 57 × 21 mm | |
| Material | Porcelain | |
| Halogen-free | Yes | |
| Standards | UL 248-8, UL 248-1 | |
| GTIN / EAN | 4021267313425 | |
| Pack quantity | 10 | |
| Weight | Approx. 50 g per fuse |
Frequently Asked Questions
What is the Wöhner 31342 used for?
The Wöhner 31342 is a Class J time-delay fuse link used to protect industrial electrical circuits against overloads and short circuits while tolerating temporary inrush currents.
What is the current rating of the Wöhner 31342?
The fuse has a rated current of 3 A.
What voltage ratings does this fuse support?
The Wöhner 31342 is rated for applications up to 600 V AC and 500 V DC.
Is the Wöhner 31342 a fast-acting fuse?
No. It features a time-delay operating characteristic, allowing temporary inrush currents while still protecting against sustained overloads.
Which fuse holders are compatible with the Wöhner 31342?
It is designed for compatible Class J fuse holders accepting 21 × 57 mm cylindrical fuse links.
Trusted by Electrical Professionals Worldwide
Wöhner Class J fuse links are trusted by panel builders, OEM manufacturers and industrial electricians for delivering dependable overcurrent protection and reliable performance in demanding industrial electrical installations.
