Wöhner 33631 QUADRON 185Power Speed NH size 1 fuse switch-disconnector with top M12 connection, double-breaking contacts and operator-independent switching for industrial busbar systems.
£712.96
The Wöhner 33631 is a heavy-duty NH in-line fuse switch-disconnector designed for safe switching, dependable circuit isolation and reliable overcurrent protection within industrial low-voltage power distribution systems. Part of the Wöhner QUADRON® 185Power Speed series, this NH size 1 device is ideal for industrial switchboards, motor control centres and OEM panel-building applications.
Featuring an operator-independent snap-action switching mechanism, the Wöhner 33631 delivers fast and consistent switching regardless of operating handle speed. Its double-breaking contact system enhances switching performance while ensuring safe isolation during maintenance and servicing.
Designed with a top M12 screw connection, the switch-disconnector 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.
The Wöhner 33631 combines dependable switching, electrical isolation and high-capacity fuse protection in one 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 procedures.
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.
| Manufacturer | Wöhner |
|---|---|
| Series | QUADRON® 185Power Speed |
| Model | 33631 |
| Full manufacturer SKU | 33631000A |
| 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 800 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 system | 185Power busbar system |
| Dimensions (W × H × D) | Approx. 100 × 781 × 274 mm |
| Material | Halogen free |
| Standards | IEC 60947-1, IEC 60947-3 |
| ETIM classification | EC001046 |
| EAN | 4021267336318 |
| Pack quantity | 1 |
The Wöhner 33631 provides safe switching, circuit isolation and fuse protection within industrial low-voltage power distribution systems.
The device is designed for use with standard NH size 1 fuse links.
The switch-disconnector has a rated current of 250 A when used with suitable NH size 1 fuse links.
The Wöhner 33631 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 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...