31358 Wohner holder for cylindrical fuses, for semiconductor fuses
Wöhner 31358 Class J time-delay fuse link rated at 25 A, 600 V AC and 400 V DC for industrial machinery, feeder circuits and power distribution protection.
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The Wöhner 31358 is a high-performance Class J time-delay fuse link designed to provide dependable overload and short-circuit protection for industrial electrical installations. Manufactured by Mersen for Wöhner, this fuse is suitable for compatible Class J fuse holders, industrial switchgear and power distribution equipment.
The Wöhner 31358 combines a time-delay operating characteristic with a high short-circuit breaking capacity. This allows temporary starting currents from motors, transformers and other inductive loads to pass without unnecessary fuse operation, while sustained overloads and dangerous fault currents are safely interrupted.
With a rated current of 25 A, a 600 V AC supply rating and a compact 21 × 57 mm Class J format, the Wöhner 31358 is ideal for industrial machinery, feeder circuits, control panels and OEM electrical systems requiring reliable circuit protection.
Key Advantages
Reliable Class J time-delay fuse link for industrial circuit protection.
25 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.
Compact porcelain construction for dependable performance in industrial systems.
Key Features
Wöhner Class J fuse link manufactured by Mersen.
25 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 21 × 57 mm cylindrical fuse format.
Halogen-free porcelain construction.
Reliable Protection for Industrial Electrical Circuits
The Wöhner 31358 safely disconnects electrical circuits when sustained overloads or short-circuit currents exceed acceptable limits. Its high interrupting capacity helps reduce the risk of damage to cables, machinery, switchgear and other connected electrical equipment.
The time-delay operating characteristic makes this fuse particularly suitable for equipment that experiences elevated current during normal start-up. It supports reliable operation of motors, transformers and inductive loads while maintaining effective 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.
Technical Specifications
Current
25 A
Manufacturer
Wöhner
Fuse manufacturer
Mersen
Model
31358
Article number
31358 000
Product type
Class J time-delay fuse link
Rated current
25 A
Rated voltage (AC)
600 V
Rated voltage (DC)
400 V
Rated frequency
50 / 60 Hz
Operating characteristic
Time delay
Fuse class
Class J
Frame size
Class J 30 A
Short-circuit current rating (AC)
200 kA
Short-circuit current rating (DC)
100 kA
Dimensions (W × H × D)
21 × 57 × 21 mm
Material
Porcelain
Halogen free
Yes
Approximate unit weight
0.05 kg
Pack quantity
10
Applicable standards
UL 248-8 and UL 248-1
EAN
4021267313586
Frequently Asked Questions
What is the Wöhner 31358 used for?
The Wöhner 31358 is used to protect industrial electrical circuits, machinery and feeder systems against sustained overloads and short-circuit currents.
What is the rated current of the Wöhner 31358?
The fuse link has a rated current of 25 A.
What voltage ratings does this fuse support?
The Wöhner 31358 is rated for operation at up to 600 V AC and 400 V DC.
Why does the fuse have a time-delay characteristic?
The time-delay characteristic allows temporary starting and inrush currents from motors and transformers to pass without unnecessary fuse operation.
What is the breaking capacity of the Wöhner 31358?
The fuse has a short-circuit current rating of 200 kA AC and 100 kA DC.
Trusted for Industrial Power Distribution
Wöhner Class J fuse links are used by panel builders, machine manufacturers and electrical engineers to provide dependable protection for industrial machinery, feeder circuits and power distribution equipment.
Current
25 A
Manufacturer
Wöhner
Fuse manufacturer
Mersen
Model
31358
Article number
31358 000
Product type
Class J time-delay fuse link
Rated current
25 A
Rated voltage (AC)
600 V
Rated voltage (DC)
400 V
Rated frequency
50 / 60 Hz
Operating characteristic
Time delay
Fuse class
Class J
Frame size
Class J 30 A
Short-circuit current rating (AC)
200 kA
Short-circuit current rating (DC)
100 kA
Dimensions (W × H × D)
21 × 57 × 21 mm
Material
Porcelain
Halogen free
Yes
Approximate unit weight
0.05 kg
Pack quantity
10
Applicable standards
UL 248-8 and UL 248-1
EAN
4021267313586
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
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Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
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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...