Wöhner 31971 single-pole DIN rail mounted fuse holder for 10 × 38 mm cylindrical fuse links, rated 30 A and up to 1000 V DC for industrial and photovoltaic applications.
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Why Choose the Wöhner 31971 Cylindrical Fuse Holder?
The Wöhner 31971 is a compact single-pole DIN rail mounted fuse holder designed for 10 × 38 mm cylindrical fuse links. Engineered for reliable overcurrent protection, it is suitable for industrial control panels, switchboards, OEM machinery and photovoltaic installations where dependable circuit protection is essential. It supports a rated current of 30 A and a rated voltage of up to 1000 V DC, making it particularly well suited to modern DC applications.
The fuse holder features a wide clamping range for straightforward installation, together with an integrated label holder to simplify circuit identification during commissioning and maintenance. Its compact DIN rail mounting design enables efficient use of enclosure space while providing secure retention of 10 × 38 mm fuse links.
Manufactured by Wöhner, the 31971 is halogen-free and carries international approvals, making it a dependable choice for electrical contractors, machine builders and panel manufacturers requiring high-quality fuse protection.
Key Advantages
Designed for 10 × 38 mm cylindrical fuse links.
30 A rated current.
1000 V DC rated voltage, ideal for photovoltaic applications.
Single-pole construction for compact installations.
DIN rail mounting for fast installation.
Integrated label holder for easy circuit identification.
Halogen-free construction.
Key Features
Manufacturer: Wöhner.
Single-pole cylindrical fuse holder.
Compatible with 10 × 38 mm fuse links.
30 A rated current.
1000 V DC maximum operating voltage.
DIN rail mounting.
Wide conductor clamping range.
Integrated label holder.
Suitable for industrial and photovoltaic installations.
Reliable Protection for Industrial and DC Applications
The Wöhner 31971 provides secure installation of 10 × 38 mm cylindrical fuse links, protecting electrical circuits against overloads and short circuits. Its compact DIN rail design makes it an ideal solution for modern electrical panels where space efficiency and dependable protection are essential.
Its high 1000 V DC rating makes it particularly suitable for photovoltaic combiner boxes, energy storage systems and other demanding DC installations while remaining equally effective in conventional industrial control panels.
Typical Applications
Industrial control panels.
Photovoltaic systems.
DC distribution systems.
OEM machinery.
Automation equipment.
Electrical switchboards.
Technical Specifications
Current
30 A
Phase
Single Phase
Manufacturer
Wöhner
Model
31971
Product type
Cylindrical fuse holder
Fuse size
10 × 38 mm
Number of poles
1
Rated current
30 A
Maximum rated voltage
1000 V DC
Mounting type
DIN rail
Label holder
Integrated
Material
Halogen-free
Applications
Industrial control and photovoltaic systems
Frequently Asked Questions
What fuse size does the Wöhner 31971 accept?
It is designed for 10 × 38 mm cylindrical fuse links.
What is the rated current of the Wöhner 31971?
The fuse holder has a rated current of 30 A.
Is the Wöhner 31971 suitable for photovoltaic systems?
Yes. Its 1000 V DC rating makes it well suited to photovoltaic and other high-voltage DC applications.
How is the Wöhner 31971 mounted?
It is designed for straightforward installation onto a standard DIN rail.
Does the fuse holder include a label holder?
Yes. An integrated label holder is provided for clear circuit identification and simplified maintenance.
Trusted by Electrical Professionals
Wöhner fuse holders are trusted by panel builders and electrical engineers worldwide for delivering reliable circuit protection, high-quality construction and dependable long-term performance across industrial and renewable energy applications.
Current
30 A
Phase
Single Phase
Manufacturer
Wöhner
Model
31971
Product type
Cylindrical fuse holder
Fuse size
10 × 38 mm
Number of poles
1
Rated current
30 A
Maximum rated voltage
1000 V DC
Mounting type
DIN rail
Label holder
Integrated
Material
Halogen-free
Applications
Industrial control and photovoltaic systems
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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Same day dispatches
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Customers supported
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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...