Why Choose the Wöhner 31544 Cylindrical Fuse Link?
The Wöhner 31544 is a high-performance 10 × 38 mm gPV cylindrical fuse link designed to provide dependable overcurrent protection for photovoltaic (PV) systems. Specifically engineered for DC solar applications, this fuse protects photovoltaic strings and associated equipment from overloads and short-circuit faults, helping maximise system safety and reliability.
Manufactured in accordance with IEC 60269-1 and IEC 60269-6, the Wöhner 31544 delivers reliable protection for modern solar installations. Its compact cylindrical design allows straightforward installation into compatible 10 × 38 mm fuse holders used in combiner boxes, inverters and DC distribution systems.
With a 10 A rated current, 1000 V DC voltage rating and a 30 kA breaking capacity, the Wöhner 31544 provides excellent protection for photovoltaic circuits operating under demanding environmental conditions.
Key Advantages
Designed specifically for photovoltaic (gPV) applications.
10 A rated current for PV string protection.
1000 V DC voltage rating suitable for modern solar systems.
30 kA DC breaking capacity for dependable fault interruption.
Compatible with standard 10 × 38 mm fuse holders.
Manufactured to recognised IEC standards for reliable long-term performance.
Key Features
Wöhner cylindrical fuse link.
gPV operating class for photovoltaic protection.
10 A rated current.
1000 V DC rated voltage.
30 kA breaking capacity.
10 × 38 mm cylindrical construction.
Porcelain body with halogen-free materials.
Suitable for PV strings, combiner boxes and DC distribution circuits.
Reliable Protection for Photovoltaic Systems
Photovoltaic fuse links are specially designed to safely interrupt DC fault currents generated within solar power installations. Unlike standard AC fuses, gPV fuse links provide protection across the full operating range of photovoltaic systems, ensuring effective safeguarding of solar modules, inverters and associated electrical equipment.
The Wöhner 31544 delivers fast and reliable overcurrent protection that helps improve the safety, performance and longevity of commercial and industrial solar power systems.
Typical Applications
Solar photovoltaic string protection.
PV combiner boxes.
DC distribution systems.
Renewable energy installations.
Commercial and industrial solar arrays.
Battery energy storage DC protection.
Technical Specifications
Current
10 A
Manufacturer
Wöhner
Model
31544
Product type
Cylindrical gPV fuse link
Rated current
10 A
Rated voltage
1000 V DC
Fuse class
gPV
Breaking capacity
30 kA DC
Fuse size
10 × 38 mm
Standards
IEC 60269-1, IEC 60269-6
Material
Porcelain
Halogen free
Yes
Power dissipation
2.0 W (full load)
Approximate dimensions (W × H × D)
10 × 10 × 38 mm
Frequently Asked Questions
What is the Wöhner 31544 used for?
The Wöhner 31544 protects photovoltaic DC circuits against overloads and short-circuit faults.
What is the rated voltage?
The fuse is rated for operation up to 1000 V DC.
What current rating does this fuse have?
This model has a 10 A rated current.
What size fuse is the Wöhner 31544?
It is a standard 10 × 38 mm cylindrical fuse link.
Is this fuse suitable for solar installations?
Yes. It is a gPV fuse specifically designed for photovoltaic systems and DC solar applications.
Trusted for Photovoltaic Protection
Wöhner gPV fuse links are widely trusted by electrical contractors and renewable energy professionals for providing dependable protection in modern photovoltaic installations.
Current
10 A
Manufacturer
Wöhner
Model
31544
Product type
Cylindrical gPV fuse link
Rated current
10 A
Rated voltage
1000 V DC
Fuse class
gPV
Breaking capacity
30 kA DC
Fuse size
10 × 38 mm
Standards
IEC 60269-1, IEC 60269-6
Material
Porcelain
Halogen free
Yes
Power dissipation
2.0 W (full load)
Approximate dimensions (W × H × D)
10 × 10 × 38 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
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Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
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Trusted Manfacturers
● frequently asked questions
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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...