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33634 Wohner NH in-line switch-disconnector-fuse size 3
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.
£922.83
Why Choose the Wöhner 33634 NH In-Line Fuse Switch-Disconnector?
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.
Key Advantages
- Industrial NH size 3 in-line fuse switch-disconnector.
- Part of the proven Wöhner QUADRON® 185Power Speed system.
- Operator-independent snap-action switching mechanism.
- Double-breaking contacts for enhanced electrical safety.
- Bottom M12 screw connection.
- Compatible with multiple industrial busbar systems.
- Lockable and sealable operating cover.
Key Features
- Wöhner QUADRON® 185Power Speed series.
- Suitable for NH size 3 fuse links.
- Three-pole fuse switch-disconnector.
- Bottom M12 screw connection.
- Operator-independent snap-action switching.
- Double-breaking contact system.
- Suitable for busbars measuring 30 to 120 × 10 mm.
- Touch-safe construction when open.
- Lockable cover with double-bit lock.
- Can be sealed in both ON and OFF positions.
Reliable Switching for Industrial Power Distribution
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.
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
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| Device Type | Fuse switch disconnector | |
|---|---|---|
| Fuse Size | NH3 | |
| Mounting Type | Busbar system 185 mm | |
| Fuse Type | NH (DIN) | |
| Rail / Busbar Profile | 100 × 10 mm, 120 × 10 mm, 30 × 10 mm, 40 × 10 mm, 60 × 10 mm, 80 × 10 mm | |
| Product Series | Wöhner 185Power | |
| Busbar Centre Distance (mm) | 185 mm | |
| Poles | 3-pole | |
| 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 |
Frequently Asked Questions
What is the Wöhner 33634 used for?
The Wöhner 33634 provides safe switching, electrical isolation and overcurrent protection for 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 3 fuse links.
What is the rated current of the Wöhner 33634?
The switch-disconnector has a rated current of 630 A when used with suitable NH size 3 fuse links.
Which busbar sizes are supported?
The Wöhner 33634 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 for fast, reliable 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.
