Why Choose the Wöhner 31203 Cylindrical Fuse Link?
The Wöhner 31203 is a high-quality 22 × 58 mm cylindrical fuse link designed to provide dependable overcurrent protection in industrial electrical distribution systems. Manufactured by Wöhner, this IEC-compliant fuse is engineered for protecting switchgear, distribution boards and industrial control panels where reliable circuit protection is essential.
Designed to IEC 60269 standards, the Wöhner 31203 delivers dependable performance under demanding operating conditions. Its porcelain body provides excellent thermal and mechanical strength, while the gG operating class offers full-range protection against both overloads and short circuits for cables and electrical equipment.
Rated at 100 A with a 500 V AC voltage rating, this fuse link is suitable for use in industrial power distribution, machine building, control panels and OEM electrical assemblies. Its standard 22 × 58 mm format ensures compatibility with a wide range of cylindrical fuse holders.
Key Advantages
High-quality IEC cylindrical fuse link for industrial applications.
100 A current rating for reliable circuit protection.
500 V AC operating voltage suitable for industrial systems.
gG utilisation category provides full-range overload and short-circuit protection.
Durable porcelain construction for excellent heat resistance.
Compatible with standard 22 × 58 mm fuse holders.
Key Features
Wöhner cylindrical fuse link.
100 A rated current.
500 V AC rated voltage.
22 × 58 mm fuse size.
gG operating class.
120 kA breaking capacity.
Manufactured from durable porcelain.
Halogen-free construction.
Reliable Circuit Protection for Industrial Installations
The Wöhner 31203 fuse link is designed to disconnect fault currents rapidly, helping protect cables, motors, switchgear and other electrical equipment from damage caused by overloads and short circuits. Its robust construction and high interrupting capacity make it suitable for demanding industrial environments.
Using a standard IEC cylindrical design, this fuse can be easily integrated into compatible fuse holders found in control panels, switchboards and industrial distribution systems, providing dependable protection with straightforward replacement during maintenance.
Typical Applications
Industrial control panels.
Electrical distribution boards.
Machine building and OEM equipment.
Motor protection circuits.
Switchgear assemblies.
Industrial automation systems.
Technical Specifications
Current
100 A
Manufacturer
Wöhner
Model
31203
Product type
Cylindrical fuse link
Rated current
100 A
Rated voltage
500 V AC
Fuse size
22 × 58 mm
Operating class
gG
Breaking capacity
120 kA AC
Standards
IEC 60269-1 / IEC 60269-2
Material
Porcelain
Halogen free
Yes
Dimensions (W × H × D)
22 × 22 × 58 mm
Frequently Asked Questions
What is the Wöhner 31203 used for?
It is used to provide overcurrent and short-circuit protection for industrial electrical circuits, equipment and distribution systems.
What is the current rating of this fuse?
The Wöhner 31203 has a 100 A rated current.
What voltage is this fuse designed for?
It is rated for operation on systems up to 500 V AC.
What does the gG classification mean?
The gG operating class provides full-range protection against both overloads and short circuits, making it suitable for protecting cables and general electrical equipment.
Which fuse holders is this compatible with?
The fuse is designed for standard 22 × 58 mm cylindrical fuse holders that comply with IEC standards.
Trusted for Industrial Electrical Protection
Wöhner cylindrical fuse links are widely used by panel builders, OEM manufacturers and industrial electricians for dependable overcurrent protection in electrical distribution and automation systems.
Current
100 A
Manufacturer
Wöhner
Model
31203
Product type
Cylindrical fuse link
Rated current
100 A
Rated voltage
500 V AC
Fuse size
22 × 58 mm
Operating class
gG
Breaking capacity
120 kA AC
Standards
IEC 60269-1 / IEC 60269-2
Material
Porcelain
Halogen free
Yes
Dimensions (W × H × D)
22 × 22 × 58 mm
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.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
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We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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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...