Why Choose the Wöhner 31363 Class J Fuse Link?
The Wöhner 31363 is a high-performance 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 suitable for compatible Class J fuse holders, switchgear and power distribution assemblies used in demanding industrial environments.
Designed in accordance with UL 248-8 and UL 248-1, the Wöhner 31363 features a time-delay operating characteristic that accommodates temporary starting and inrush currents from motors, transformers and other inductive loads. This helps prevent unnecessary fuse operation while maintaining effective protection against sustained overloads and dangerous fault currents.
With a rated current of 50 A, a 600 V AC rating and a compact 27 × 60 mm Class J format, the Wöhner 31363 is ideal for industrial control panels, OEM machinery, feeder circuits and electrical distribution systems requiring reliable high-capacity circuit protection.
Key Advantages
- High-performance Class J time-delay fuse link.
- 50 A rated current for industrial 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.
- Halogen-free porcelain construction for dependable industrial operation.
Key Features
- Wöhner Class J fuse link manufactured by Mersen.
- 50 A UL rated current.
- 600 V AC rated voltage.
- 400 V DC rated voltage.
- Time-delay operating characteristic.
- 200 kA AC and 100 kA DC SCCR.
- Compact 27 × 60 mm cylindrical fuse format.
- Suitable for UL feeder circuits operating above 250 V.
Reliable Protection for Industrial Electrical Circuits
The Wöhner 31363 safely disconnects electrical circuits when sustained overloads or short-circuit currents exceed safe operating limits. Its high interrupting capacity helps reduce the risk of damage to cables, switchgear, machinery and other connected electrical equipment.
The time-delay characteristic makes this fuse particularly suitable for circuits containing motors, transformers and other inductive equipment. It tolerates brief inrush currents during normal start-up while continuing to provide dependable protection against genuine electrical faults.
Typical Applications
- Industrial control panels and switchboards.
- Motor and transformer protection circuits.
- UL feeder circuits operating above 250 V.
- Manufacturing and production machinery.
- OEM electrical equipment.
- Industrial power distribution systems.
