Why Choose the Wöhner 33705 QUADRON® 185Power Fuse Switch-Disconnector?
The Wöhner 33705 is a compact 250 A NH fuse switch-disconnector engineered for dependable switching, isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the Wöhner QUADRON® 185Power range, this flat version combines a space-saving design with reliable three-pole switching, making it ideal for modern switchboards where installation depth is limited.
Designed for installation on 185 mm busbar systems, the Wöhner 33705 accommodates busbars measuring 30, 40, 60, 80, 100 or 120 × 10 mm. Its robust M12 screw terminals provide secure cable connections, while the lockable cover and self-closing inspection holes improve operational safety and simplify routine maintenance.
Compatible with NH 1 fuse links, the Wöhner 33705 offers dependable circuit protection for feeders, motor control centres and industrial distribution equipment. The modular QUADRON® platform allows easy integration alongside other switching and protection devices within the same 185Power busbar system.
Key Advantages
Compact 250 A NH fuse switch-disconnector.
Space-saving flat version for reduced installation depth.
Designed for the QUADRON® 185Power busbar system.
Compatible with NH 1 fuse links.
Three-pole switchable design for safe circuit isolation.
Lockable cover with self-closing inspection holes.
Key Features
Wöhner QUADRON® 185Power series.
250 A rated current.
Size NH 1.
Three-pole switchable construction.
Flat version with M12 screw terminals.
Suitable for 185 mm busbar systems.
Compatible with drilled busbars.
Front protection rating of IP20.
Reliable Protection for Industrial Installations
The Wöhner 33705 combines manual switching with NH fuse protection, enabling engineers to safely isolate electrical circuits while protecting downstream equipment against overloads and short circuits. Its flat construction helps maximise available panel space without compromising accessibility or safety.
The modular QUADRON® 185Power platform enables fuse switch-disconnectors, circuit breakers and accessories to be combined on a common 185 mm busbar system, simplifying installation and future expansion.
Typical Applications
Industrial low-voltage switchboards.
Main and sub-distribution panels.
Motor control centres.
Machine building and OEM equipment.
Manufacturing facilities.
Commercial electrical installations.
Technical Specifications
Current
160 A
Manufacturer
Wöhner
Series
QUADRON® 185Power
Model
33705
Alternative part number
33705000A
Product type
NH fuse switch-disconnector
Rated current
250 A
Fuse size
NH 1
Number of poles
3
Version
Flat
Connection type
M12 screw terminals
Compatible busbars
30, 40, 60, 80, 100 or 120 × 10 mm
Busbar system
185Power
Fuse standard
IEC / HD 60269-2
Protection rating
IP20 (front)
Standards
IEC 60947-1 & IEC 60947-3
Pack quantity
1
Frequently Asked Questions
What is the Wöhner 33705 used for?
The Wöhner 33705 is designed for switching, isolation and NH fuse protection in industrial low-voltage power distribution systems.
Which fuse links are compatible?
The device is designed for NH 1 fuse links manufactured to IEC / HD 60269-2.
What is the rated current?
The Wöhner 33705 has a rated current of 250 A.
Which busbar systems can it be mounted on?
It fits Wöhner 185Power busbar systems using busbars measuring 30, 40, 60, 80, 100 or 120 × 10 mm.
Can the cover be locked?
Yes. The cover can be locked in the closed position to help prevent unauthorised operation.
Trusted for Industrial Power Distribution
Wöhner QUADRON® 185Power fuse switch-disconnectors are trusted by panel builders and electrical engineers for reliable circuit protection, safe isolation and efficient power distribution across industrial installations.
Current
160 A
Manufacturer
Wöhner
Series
QUADRON® 185Power
Model
33705
Alternative part number
33705000A
Product type
NH fuse switch-disconnector
Rated current
250 A
Fuse size
NH 1
Number of poles
3
Version
Flat
Connection type
M12 screw terminals
Compatible busbars
30, 40, 60, 80, 100 or 120 × 10 mm
Busbar system
185Power
Fuse standard
IEC / HD 60269-2
Protection rating
IP20 (front)
Standards
IEC 60947-1 & IEC 60947-3
Pack quantity
1
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
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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.
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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...