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33639 Wohner NH in-line switch-disconnector-fuse size 2
Wöhner 33639 QUADRON 185Power Speed NH size 2 fuse switch-disconnector with top M12 connection, integrated fuse monitoring, operator-independent snap-action switching and double-breaking contacts.
Why Choose the Wöhner 33639 NH In-Line Fuse Switch-Disconnector?
The Wöhner 33639 is a high-performance NH in-line fuse switch-disconnector engineered for safe switching, dependable electrical isolation and reliable overcurrent protection in industrial low-voltage power distribution systems. Part of the Wöhner QUADRON® 185Power Speed series, this NH size 2 device features integrated fuse monitoring together with a top M12 screw connection, making it ideal for industrial switchboards, motor control centres and OEM panel-building applications where top cable entry and rapid fault indication are required.
The switch-disconnector incorporates an operator-independent snap-action switching mechanism with a double-breaking contact system, delivering fast and consistent switching regardless of handle speed. Integrated fuse monitoring enables maintenance personnel to identify blown fuse links quickly, helping minimise downtime and improve operational efficiency.
Designed for installation on 30, 40, 60, 80, 100 and 120 × 10 mm busbars, the Wöhner 33639 features a touch-safe design when open, a lockable and sealable operating cover, and compatibility with the modular 185Power busbar system for demanding industrial installations.
Key Advantages
- Industrial NH size 2 in-line fuse switch-disconnector.
- Integrated fuse monitoring for rapid fault indication.
- Operator-independent snap-action switching mechanism.
- Double-breaking contacts for enhanced switching safety.
- Top M12 screw connection for upper cable entry.
- Compatible with Wöhner 185Power busbar systems.
- Lockable and sealable operating cover.
Key Features
- Wöhner QUADRON® 185Power Speed series.
- Suitable for NH size 2 fuse links.
- Three-pole fuse switch-disconnector.
- Integrated fuse monitoring.
- Top M12 screw connection.
- Operator-independent snap-action switching.
- Double-breaking contact system.
- Suitable for busbars measuring 30, 40, 60, 80, 100 and 120 × 10 mm.
- Touch-safe construction when open.
- Lockable cover with double-bit lock.
Reliable Switching for Industrial Power Distribution
The Wöhner 33639 combines dependable switching, safe electrical isolation and high-capacity fuse protection in a robust industrial assembly. Integrated fuse monitoring provides rapid identification of blown fuse links, helping maintenance engineers reduce downtime while maintaining reliable system protection.
Its top-entry M12 connection simplifies installation where upper cable routing is preferred, while the snap-action mechanism, double-breaking contacts and touch-safe construction make it an excellent solution for modern industrial switchgear requiring maximum safety and reliability.
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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| 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 | |
| Device Type | Terminal / feed-in | |
| Busbar Centre Distance (mm) | 185 mm | |
| Poles | 3-pole | |
| Manufacturer | Wöhner | |
| Series | QUADRON® 185Power Speed | |
| Model | 33639 | |
| Full manufacturer SKU | 33639000A | |
| 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 | |
| Fuse monitoring | Integrated | |
| 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 | 4021267336394 | |
| Pack quantity | 1 |
Frequently Asked Questions
What is the Wöhner 33639 used for?
The Wöhner 33639 provides safe switching, circuit isolation and overcurrent protection for industrial low-voltage power distribution systems while offering integrated fuse monitoring.
Which fuse size is compatible with this switch-disconnector?
The device is designed for use with standard NH size 2 fuse links.
Does the Wöhner 33639 include fuse monitoring?
Yes. Integrated fuse monitoring provides rapid indication of blown fuse links, helping reduce maintenance time and system downtime.
Which busbar sizes are supported?
The Wöhner 33639 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.
