Why Choose the Wöhner 33630 NH In-Line Fuse Switch-Disconnector?
The Wöhner 33630 is a heavy-duty NH in-line fuse switch-disconnector engineered for safe switching, dependable electrical isolation and reliable overcurrent protection within industrial low-voltage power distribution systems. As part of the proven Wöhner QUADRON® 185Power Speed series, this NH size 1 device is designed for industrial switchboards, motor control centres and OEM panel-building applications.
The switch-disconnector incorporates an operator-independent snap-action switching mechanism that provides fast and consistent switching regardless of handle operating speed. Its double-breaking contact system improves switching performance while helping ensure reliable circuit isolation for maintenance and servicing operations.
Designed with a bottom M12 screw connection, the Wöhner 33630 is suitable for installation on 30, 40, 60, 80, 100 and 120 × 10 mm busbars. It forms part of the modular 185Power busbar system and requires the appropriate mounting accessories for installation.
Double-breaking contact design for dependable switching.
Bottom M12 screw connection.
Compatible with multiple industrial busbar systems.
Lockable and sealable cover for enhanced operational safety.
Key Features
Wöhner QUADRON® 185Power Speed series.
Suitable for NH size 1 fuse links.
Three-pole fuse switch-disconnector.
Bottom M12 screw connection.
Operator-independent snap-action switching.
Double-breaking switching mechanism.
Suitable for busbars measuring 30 to 120 × 10 mm.
Lockable cover with double-bit lock.
Can be sealed in both ON and OFF positions.
Touch-safe design when cover is open.
Reliable Switching for Industrial Power Distribution
The Wöhner 33630 combines dependable switching, electrical isolation and high-capacity fuse protection within a robust industrial assembly. When fitted with suitable NH size 1 fuse links, it helps protect electrical equipment against overloads and short circuits while providing a safe means of disconnecting power during maintenance.
Its operator-independent switching mechanism, touch-safe construction and lockable cover make the device well suited to industrial switchgear where safety, reliability and ease of maintenance are essential.
Typical Applications
Industrial switchboards.
185 mm busbar power distribution systems.
Main and sub-distribution panels.
Motor control centres.
Industrial automation equipment.
Machine building.
Commercial electrical installations.
OEM panel-building projects.
Technical Specifications
Manufacturer
Wöhner
Series
QUADRON® 185Power Speed
Model
33630
Full manufacturer SKU
33630000A
Type number
QS185-1
Product type
NH in-line fuse switch-disconnector
Fuse size
NH 1
Number of poles
3
Rated current
250 A
Rated operational voltage
Up to 690 V AC
Connection position
Bottom
Connection type
M12 screw connection
Switching mechanism
Operator-independent snap-action
Breaking system
Double-breaking
Compatible busbars
30, 40, 60, 80, 100 and 120 × 10 mm
Mounting system
185Power busbar system
Standards
IEC 60947-1, IEC 60947-3
ETIM classification
EC001046
EAN
4021267336301
Pack quantity
1
Frequently Asked Questions
What is the Wöhner 33630 used for?
The Wöhner 33630 provides safe switching, circuit isolation and fuse protection within industrial low-voltage power distribution systems.
Which fuse size is compatible with this switch-disconnector?
The device is designed for use with standard NH size 1 fuse links.
What is the rated current of the Wöhner 33630?
The switch-disconnector has a rated current of 250 A when used with suitable NH size 1 fuse links.
Which busbar sizes are supported?
The Wöhner 33630 is compatible with 30, 40, 60, 80, 100 and 120 × 10 mm busbars.
What type of switching mechanism does it use?
The device incorporates an operator-independent snap-action mechanism with double-breaking contacts to provide fast and consistent switching.
Trusted Industrial Power Distribution Technology
Wöhner QUADRON® fuse switch-disconnectors are trusted worldwide by switchgear manufacturers, panel builders and industrial electrical engineers for dependable switching, reliable circuit protection and safe electrical isolation.
Manufacturer
Wöhner
Series
QUADRON® 185Power Speed
Model
33630
Full manufacturer SKU
33630000A
Type number
QS185-1
Product type
NH in-line fuse switch-disconnector
Fuse size
NH 1
Number of poles
3
Rated current
250 A
Rated operational voltage
Up to 690 V AC
Connection position
Bottom
Connection type
M12 screw connection
Switching mechanism
Operator-independent snap-action
Breaking system
Double-breaking
Compatible busbars
30, 40, 60, 80, 100 and 120 × 10 mm
Mounting system
185Power busbar system
Standards
IEC 60947-1, IEC 60947-3
ETIM classification
EC001046
EAN
4021267336301
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
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.
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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...