Wöhner 33634 QUADRON 185Power Speed NH size 3 fuse switch-disconnector with bottom M12 connection, operator-independent snap-action switching and double-breaking contacts for industrial busbar systems.
£1,153.54
The Wöhner 33634 is a heavy-duty NH in-line fuse switch-disconnector designed for safe switching, dependable circuit isolation and high-capacity overcurrent protection in industrial low-voltage power distribution systems. As part of the Wöhner QUADRON® 185Power Speed series, this NH size 3 device is engineered for demanding industrial switchboards, motor control centres and OEM panel-building applications.
The switch-disconnector incorporates an operator-independent snap-action switching mechanism with a double-breaking contact system, providing fast, reliable switching regardless of handle operation. When the cover is open, all touchable parts remain voltage-free, enhancing operator safety during maintenance.
Designed with a bottom M12 screw connection, the Wöhner 33634 is suitable for installation on 30, 40, 60, 80, 100 and 120 × 10 mm busbars. It forms part of the modular 185Power system and requires the appropriate mounting accessories for installation.
The Wöhner 33634 combines dependable switching, safe electrical isolation and high-capacity fuse protection in one robust assembly. When fitted with suitable NH size 3 fuse links, it protects industrial electrical installations against overloads and short circuits while providing a safe means of isolation during maintenance procedures.
Its operator-independent switching mechanism, touch-safe construction, lockable cover and compatibility with the modular 185Power busbar system make it an excellent solution for demanding industrial switchgear where safety, reliability and ease of maintenance are essential.
| Manufacturer | Wöhner |
|---|---|
| Series | QUADRON® 185Power Speed |
| Model | 33634 |
| Full manufacturer SKU | 33634000A |
| Type number | QS185-3 |
| Product type | NH in-line fuse switch-disconnector |
| Fuse size | NH 3 |
| Number of poles | 3 |
| Rated current | 630 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 | Accessory required for busbar mounting |
| Standards | IEC 60947-1:2020, IEC 60947-3:2020 |
| ETIM classification | EC001046 |
| EAN | 4021267336349 |
| Pack quantity | 1 |
The Wöhner 33634 provides safe switching, electrical isolation and overcurrent protection for industrial low-voltage power distribution systems.
The device is designed for use with standard NH size 3 fuse links.
The switch-disconnector has a rated current of 630 A when used with suitable NH size 3 fuse links.
The Wöhner 33634 is compatible with 30, 40, 60, 80, 100 and 120 × 10 mm busbars.
The device incorporates an operator-independent snap-action mechanism with double-breaking contacts for fast, reliable and consistent switching.
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.
● Service Agreements
Credit Accounts
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.
● frequently asked questions
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.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...