Wöhner 33331 NH size 2 fuse switch disconnector with 400 A rating, M10 screw terminals and integrated electronic fuse monitoring for industrial power distribution.
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Why Choose the Wöhner 33331 NH Fuse Switch Disconnector?
The Wöhner 33331 is a heavy duty NH fuse switch disconnector engineered for reliable protection, switching and isolation within industrial low voltage power distribution systems. Manufactured by Wöhner, this robust device is designed to provide dependable performance in demanding electrical installations while supporting safe maintenance and efficient system operation.
Featuring integrated electronic fuse monitoring, the Wöhner 33331 enables maintenance personnel to quickly identify blown fuse links, reducing troubleshooting time and improving equipment availability. Its rugged construction and proven design make it well suited to switchboards, motor control centres and industrial distribution panels.
Designed for NH size 2 fuse links with a 400 A rated current, the unit incorporates M10 screw terminals to provide secure conductor connections. It offers dependable overcurrent protection and safe isolation for high current feeders, industrial machinery and power distribution equipment.
Key Advantages
Heavy duty NH fuse switch disconnector for industrial power distribution.
400 A rated current for high current applications.
Designed for NH size 2 fuse links.
Integrated electronic fuse monitoring for rapid fault identification.
M10 screw terminal connections provide secure installation.
Suitable for switchboards, MCCs and industrial electrical distribution systems.
Key Features
Manufacturer: Wöhner.
Part number: 33331.
NH size 2 fuse switch disconnector.
400 A rated current.
Integrated electronic fuse monitoring.
M10 screw terminal connection.
Designed for industrial low voltage power distribution.
Robust panel mounted construction.
Reliable Protection for Industrial Power Distribution
NH fuse switch disconnectors are designed to safely isolate electrical circuits while providing dependable protection against overloads and short circuits. The Wöhner 33331 combines high current switching capability with integrated electronic fuse monitoring, helping reduce maintenance time and improve operational reliability.
Its proven design makes it an excellent choice for demanding industrial environments where dependable isolation, high performance and long service life are essential.
Typical Applications
Industrial power distribution systems.
Motor control centres.
Main and sub-distribution boards.
OEM machinery and equipment.
Electrical switchgear assemblies.
Commercial and industrial infrastructure.
Technical Specifications
Current
400 A
Manufacturer
Wöhner
Part number
33331
Product type
NH fuse switch disconnector
Fuse size
NH 2
Rated current
400 A
Connection type
M10 screw terminals
Monitoring
Integrated electronic fuse monitoring
Mounting
Panel mounting
Application
Low voltage power distribution
Approximate weight
380 g
Frequently Asked Questions
What is the Wöhner 33331 used for?
It is an NH fuse switch disconnector designed to provide safe isolation and overcurrent protection within industrial power distribution systems.
What fuse size does it accept?
The Wöhner 33331 is designed for NH size 2 fuse links.
What is the rated current?
The switch disconnector has a 400 A current rating.
Does it include fuse monitoring?
Yes. It incorporates integrated electronic fuse monitoring to assist with rapid identification of blown fuse links.
Where is the Wöhner 33331 typically installed?
It is commonly installed within industrial switchboards, motor control centres and electrical distribution panels.
Trusted for Industrial Power Distribution
Wöhner electrical distribution components are trusted worldwide by switchgear manufacturers, panel builders and industrial engineers for reliable, safe and efficient low voltage power distribution.
Current
400 A
Manufacturer
Wöhner
Part number
33331
Product type
NH fuse switch disconnector
Fuse size
NH 2
Rated current
400 A
Connection type
M10 screw terminals
Monitoring
Integrated electronic fuse monitoring
Mounting
Panel mounting
Application
Low voltage power distribution
Approximate weight
380 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
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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.
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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...