The Wöhner 31947 is a robust three-pole D fuse base designed for secure mounting on 60 mm busbar systems in industrial power distribution applications. As part of the proven Wöhner CUSTO® 60Classic range, it accommodates DIII (E33) gauge ring fuse links and delivers dependable overcurrent protection for switchboards, machine control panels and OEM electrical installations.
Featuring a touch-safe design with integrated strip cover and gauge ring support, the 31947 enables fast installation while improving operator safety during maintenance. Its compact three-pole construction makes it ideal for panel builders and electrical engineers requiring reliable circuit protection within industrial busbar systems.
Rated at 63 A with a 500 V AC/DC operating voltage, the Wöhner 31947 is engineered for demanding industrial environments where reliable protection, simple installation and long service life are essential.
Key Advantages
Designed for DIII (E33) gauge ring fuse links.
Three-pole construction for three-phase systems.
Touch-safe design improves operator safety.
Suitable for 60 mm busbar systems.
Quick installation onto flat and section busbars.
Reliable industrial construction for long service life.
Key Features
Wöhner CUSTO® 60Classic series.
D fuse base with gauge ring.
DIII / E33 fuse compatibility.
63 A rated current.
500 V AC / DC rated voltage.
Three-pole configuration.
Busbar mounted.
Touch-safe construction with strip cover.
Compatible with 12, 15, 20, 25 and 30 mm busbars.
Reliable Protection for Industrial Power Distribution
The Wöhner 31947 provides dependable overcurrent protection while allowing quick fuse replacement and secure installation onto standard industrial busbar systems. Its touch-safe construction helps improve operator safety and reduces maintenance time.
As part of the established Wöhner 60Classic platform, this fuse base integrates seamlessly into industrial switchgear, machine control panels and electrical distribution systems where reliability and ease of installation are critical.
Typical Applications
Industrial switchboards.
Power distribution systems.
Machine building.
Motor control panels.
OEM electrical equipment.
Industrial automation systems.
Technical Specifications
Manufacturer
Wöhner
Series
CUSTO® 60Classic
Model
31947
Product type
D fuse base
Fuse type
DIII / E33 gauge ring
Number of poles
3
Rated current
63 A
Rated voltage
500 V AC / 500 V DC
Rated impulse withstand voltage
4 kV
Short-circuit rating
50 kA (when protected by suitable fuse)
Mounting type
Busbar mounted
Compatible busbars
12, 15, 20, 25, 30 × 5 / 10 mm and section busbars
Dimensions (W × H × D)
57 × 200 × 43 mm
Weight
approx. 398 g
Frequently Asked Questions
What type of fuse does the Wöhner 31947 use?
It is designed for DIII (E33) gauge ring fuse links.
What is the rated current of the Wöhner 31947?
The Wöhner 31947 has a rated current of 63 A.
How many poles does this fuse base have?
The unit is a three-pole fuse base for protecting three-phase electrical distribution systems.
How is the Wöhner 31947 installed?
It mounts directly onto compatible 60 mm busbar systems, allowing fast and secure installation.
Where is the Wöhner 31947 typically used?
It is commonly installed in industrial switchboards, power distribution equipment, automation systems and OEM machinery.
Trusted by Panel Builders Worldwide
Wöhner CUSTO® 60Classic components are trusted by electrical engineers and panel builders worldwide for delivering reliable power distribution, robust construction and dependable protection in demanding industrial environments.
Manufacturer
Wöhner
Series
CUSTO® 60Classic
Model
31947
Product type
D fuse base
Fuse type
DIII / E33 gauge ring
Number of poles
3
Rated current
63 A
Rated voltage
500 V AC / 500 V DC
Rated impulse withstand voltage
4 kV
Short-circuit rating
50 kA (when protected by suitable fuse)
Mounting type
Busbar mounted
Compatible busbars
12, 15, 20, 25, 30 × 5 / 10 mm and section busbars
Dimensions (W × H × D)
57 × 200 × 43 mm
Weight
approx. 398 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
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Customers supported
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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...