Why Choose the Wöhner 31359 Class J Fuse Link?
The Wöhner 31359 is a premium Class J time-delay fuse link designed to provide dependable overload and short-circuit protection for industrial electrical systems. Manufactured by Mersen for Wöhner, it is engineered for use with compatible Class J fuse holders, switchgear and busbar systems, ensuring reliable protection for industrial machinery and power distribution equipment.
Designed to meet UL 248-8 and UL 248-1 standards, the Wöhner 31359 features a time-delay operating characteristic that allows temporary motor starting and transformer inrush currents without unnecessary fuse operation. This helps maximise equipment uptime while maintaining excellent protection against sustained overloads and fault currents.
With a 30 A current rating, a 600 V AC operating voltage and a compact 21 × 57 mm Class J format, the Wöhner 31359 is ideal for industrial control panels, OEM machinery, feeder circuits and electrical distribution systems requiring dependable circuit protection.
Key Advantages
- Reliable Class J time-delay fuse link for industrial circuit protection.
- 30 A rated current suitable for machinery and feeder circuits.
- 600 V AC and 400 V DC voltage ratings.
- Time-delay characteristic accommodates temporary motor and transformer inrush currents.
- High 200 kA AC short-circuit current rating.
- Compatible with Wöhner Class J fuse holders and busbar systems.
Key Features
- Manufacturer: Wöhner.
- Fuse manufacturer: Mersen.
- Model: 31359.
- 30 A rated current.
- 600 V AC rated voltage.
- 400 V DC rated voltage.
- Time-delay operating characteristic.
- Compact 21 × 57 mm Class J fuse format.
Reliable Protection for Industrial Electrical Circuits
The Wöhner 31359 safely disconnects electrical circuits when overloads or short-circuit currents exceed acceptable operating limits. Its high interrupting capacity helps minimise the risk of damage to switchgear, cables and connected industrial equipment while improving overall system reliability.
The time-delay characteristic makes this fuse particularly suitable for circuits supplying motors, transformers and other inductive loads. It allows temporary inrush currents during start-up while maintaining effective protection against sustained overloads and electrical faults.
Typical Applications
- Industrial control panels.
- Motor and transformer protection.
- Power distribution systems.
- OEM machinery.
- Switchgear assemblies.
- UL feeder circuits above 250 V.
