The Wöhner 33340 is a heavy-duty three-pole NH fuse switch disconnector designed for reliable switching, safe circuit isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the established Wöhner CAPUS® Panel range, it provides a robust solution for switchboards, control panels and electrical distribution assemblies.
Designed for use with NH size 3 fuse links, the Wöhner 33340 combines dependable manual operation with the proven protection characteristics of NH fuse technology. Its rotary operating mechanism switches all three phases together, helping engineers create a secure isolation point before maintenance, inspection or fuse replacement.
With a rated operational current of 630 A, an operating voltage of up to 690 V AC and robust M12 screw connections, the Wöhner 33340 is suitable for high-current feeders, industrial machinery and major distribution circuits. Its mounting-plate format allows straightforward integration into modern switchgear assemblies.
Key Advantages
Heavy-duty NH fuse switch disconnector for industrial power distribution.
630 A rated operational current for high-current applications.
Designed for NH size 3 fuse links.
Three-pole operation isolates all phases simultaneously.
M12 screw connections provide secure conductor termination.
Mounting-plate construction supports efficient switchgear installation.
Key Features
Wöhner CAPUS® Panel product family.
630 A rated operational current.
Up to 690 V AC operational voltage.
NH size 3 fuse compatibility.
Three-pole switching configuration.
Rotary operating mechanism.
M12 screw terminal connections.
Designed for mounting-plate installation.
Reliable Protection for High-Current Distribution Systems
NH fuse switch disconnectors combine manual circuit isolation with the dependable overcurrent protection provided by NH fuse links. The Wöhner 33340 enables a three-phase circuit to be disconnected through a single operating mechanism while correctly selected fuse links protect downstream equipment against overload and short-circuit conditions.
Its robust construction and high current capacity make it suitable for demanding panel-building applications where operational safety, straightforward maintenance and reliable long-term performance are essential.
Typical Applications
Industrial main distribution boards.
High-current incoming and feeder circuits.
Motor control centres.
Manufacturing and process equipment.
Commercial and industrial switchgear assemblies.
OEM panel-building applications.
Technical Specifications
Phase
Three Phase
Manufacturer
Wöhner
Product family
CAPUS® Panel
Model
33340
Product type
NH fuse switch disconnector
Number of poles
3
Fuse size
NH 3
Rated operational current
630 A
Rated operational voltage
Up to 690 V AC
Connection type
M12 screw connections
Operating mechanism
Rotary handle
Mounting type
Mounting plate
Application
Industrial low-voltage power distribution
Fuse protection
Overload and short-circuit protection with compatible NH fuse links
Supply scope
Fuse links and installation accessories selected separately
Frequently Asked Questions
What is the Wöhner 33340 used for?
It is used to switch, isolate and protect high-current three-phase circuits in industrial low-voltage power distribution systems.
What fuse size does the Wöhner 33340 accept?
The switch disconnector is designed for compatible NH size 3 fuse links.
What is the rated current of the Wöhner 33340?
The Wöhner 33340 has a rated operational current of 630 A.
What type of connections does the Wöhner 33340 use?
The unit uses robust M12 screw connections for secure conductor termination.
Where is the Wöhner 33340 typically installed?
It is typically mounted on a mounting plate inside industrial switchboards, main distribution panels and electrical control cabinets.
Trusted for Industrial Power Distribution
Wöhner CAPUS® Panel fuse switch disconnectors are used by electrical engineers, panel builders and OEM manufacturers requiring dependable circuit isolation, reliable fuse protection and efficient low-voltage power distribution.
Phase
Three Phase
Manufacturer
Wöhner
Product family
CAPUS® Panel
Model
33340
Product type
NH fuse switch disconnector
Number of poles
3
Fuse size
NH 3
Rated operational current
630 A
Rated operational voltage
Up to 690 V AC
Connection type
M12 screw connections
Operating mechanism
Rotary handle
Mounting type
Mounting plate
Application
Industrial low-voltage power distribution
Fuse protection
Overload and short-circuit protection with compatible NH fuse links
Supply scope
Fuse links and installation accessories selected separately
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.
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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...