Why Choose the Wöhner 31547 gPV Cylindrical Fuse Link?
The Wöhner 31547 is a high-performance gPV cylindrical fuse link designed specifically for protecting photovoltaic (PV) systems against overloads and short circuits. Rated at 20 A and 1000 V DC, this fuse provides reliable protection for solar strings, combiner boxes and DC power distribution systems operating under demanding environmental conditions.
Manufactured by Wöhner, a leading specialist in electrical power distribution technology, the 31547 fuse link complies with IEC 60269-1 and IEC 60269-6 standards. Its gPV operating class provides full-range protection for photovoltaic installations, helping safeguard solar modules, inverters and associated DC equipment from damaging fault currents.
Featuring a compact 10 × 38 mm cylindrical format, a 20 A current rating and a 30 kA DC breaking capacity, the Wöhner 31547 is an ideal choice for solar energy systems requiring dependable DC circuit protection and long-term operational reliability.
Key Advantages
Designed specifically for photovoltaic (gPV) applications.
20 A rated current for DC solar circuits.
1000 V DC rated voltage for modern PV installations.
30 kA DC breaking capacity for reliable fault protection.
Compact 10 × 38 mm cylindrical design fits standard PV fuse holders.
Manufactured to IEC standards for dependable long-term performance.
Key Features
Wöhner gPV cylindrical fuse link.
20 A rated current.
1000 V DC rated voltage.
gPV operating class.
10 × 38 mm fuse size.
30 kA DC breaking capacity.
Porcelain body construction.
Halogen-free materials.
Reliable Protection for Photovoltaic Systems
Photovoltaic fuse links are specifically engineered to interrupt DC fault currents safely and efficiently. The gPV operating class provides full-range protection, helping prevent damage to solar panels, combiner boxes, string wiring and inverters while maintaining the safety and reliability of the installation.
The Wöhner 31547 is suitable for residential, commercial and industrial photovoltaic systems where dependable DC protection is essential for long-term system performance and compliance with international standards.
Typical Applications
Solar PV string protection.
Photovoltaic combiner boxes.
DC isolator assemblies.
Solar inverter protection.
Renewable energy installations.
Industrial photovoltaic systems.
Technical Specifications
Current
20 A
Manufacturer
Wöhner
Model
31547
Part number
31547 000
Product type
gPV cylindrical fuse link
Operating class
gPV
Rated current
20 A
Rated voltage
1000 V DC
Fuse size
10 × 38 mm
Breaking capacity
30 kA DC
Standards
IEC 60269-1, IEC 60269-6
Body material
Porcelain
Halogen free
Yes
Power dissipation
2.5 W at full load
Dimensions (W × H × D)
10 × 10 × 38 mm
Approximate weight
6 g
Frequently Asked Questions
What is the Wöhner 31547 used for?
The Wöhner 31547 is designed to protect photovoltaic DC circuits against overloads and short circuits.
What is the current rating of this fuse?
This fuse has a rated current of 20 A.
What voltage is the Wöhner 31547 rated for?
The fuse is designed for photovoltaic systems operating at up to 1000 V DC.
What does the gPV operating class mean?
The gPV classification provides full-range protection for photovoltaic installations, protecting solar circuits against overloads and short circuits.
What fuse size is the Wöhner 31547?
The Wöhner 31547 is manufactured in the standard 10 × 38 mm cylindrical format for compatible PV fuse holders.
Trusted for Photovoltaic Protection
Wöhner gPV fuse links are trusted by solar installers, panel builders and renewable energy engineers for delivering reliable DC circuit protection, high performance and dependable long-term operation in photovoltaic installations.
Current
20 A
Manufacturer
Wöhner
Model
31547
Part number
31547 000
Product type
gPV cylindrical fuse link
Operating class
gPV
Rated current
20 A
Rated voltage
1000 V DC
Fuse size
10 × 38 mm
Breaking capacity
30 kA DC
Standards
IEC 60269-1, IEC 60269-6
Body material
Porcelain
Halogen free
Yes
Power dissipation
2.5 W at full load
Dimensions (W × H × D)
10 × 10 × 38 mm
Approximate weight
6 g
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.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Can you help specify the correct part?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Do you have stock for urgent orders?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What are your delivery times and costs?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
What about warranties, returns and faulty items?
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
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...