Wöhner 33633 QUADRON 185Power Speed NH size 2 fuse switch-disconnector with top M12 connection, operator-independent snap-action switching and double-breaking contacts for industrial busbar systems.
£1,049.42
The Wöhner 33633 is a heavy-duty NH in-line fuse switch-disconnector engineered to provide safe switching, dependable electrical isolation and reliable overcurrent protection in industrial low-voltage power distribution systems. As part of the Wöhner QUADRON® 185Power Speed series, this NH size 2 device is designed for demanding switchboards, motor control centres and OEM panel-building applications. It features a top M12 screw connection, a double-breaking contact system and an operator-independent snap-action mechanism for maximum safety and reliability.
The operator-independent snap-action mechanism delivers fast, consistent switching regardless of handle speed, while the double-breaking contact arrangement provides enhanced arc interruption and safer fuse replacement. Designed for use on the Wöhner 185Power busbar system, the device supports busbars measuring 30, 40, 60, 80, 100 and 120 × 10 mm.
Its robust industrial construction includes a lockable and sealable operating cover, touch-safe design when open and compatibility with standard NH size 2 fuse links, making it an excellent solution for industrial power distribution installations requiring dependable performance and high operational safety.
The Wöhner 33633 combines reliable switching, safe isolation and high-capacity fuse protection within a durable industrial assembly. When used with suitable NH size 2 fuse links, it protects electrical installations against overloads and short circuits while providing safe isolation for maintenance and servicing.
Its top-entry M12 connection simplifies installation where cable routing requires upper termination, while the snap-action mechanism, double-breaking contacts and touch-safe design make it well suited to demanding industrial switchgear applications.
| Manufacturer | Wöhner |
|---|---|
| Series | QUADRON® 185Power Speed |
| Model | 33633 |
| Full manufacturer SKU | 33633000A |
| Type number | QS185-2 |
| Product type | NH in-line fuse switch-disconnector |
| Fuse size | NH 2 |
| Number of poles | 3 |
| Rated current | 400 A |
| Rated operational voltage | Up to 690 V AC |
| Connection position | Top |
| 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, IEC 60947-3 |
| ETIM classification | EC001046 |
| EAN | 4021267336332 |
| Pack quantity | 1 |
The Wöhner 33633 provides safe switching, circuit isolation and overcurrent protection within industrial low-voltage power distribution systems.
The device is designed for use with standard NH size 2 fuse links.
The switch-disconnector has a rated current of 400 A when used with suitable NH size 2 fuse links.
The Wöhner 33633 is suitable for busbars measuring 30, 40, 60, 80, 100 and 120 × 10 mm.
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.
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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...