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33641 Wohner NH in-line switch-disconnector-fuse size 3
Wöhner 33641 QUADRON 185Power Speed NH size 3 fuse switch-disconnector with top M12 connection, integrated fuse monitoring, operator-independent snap-action switching and double-breaking contacts.
Why Choose the Wöhner 33641 NH In-Line Fuse Switch-Disconnector?
The Wöhner 33641 is a heavy-duty NH in-line fuse switch-disconnector engineered for 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 3 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 requiring upper cable entry and rapid fault indication.
The switch-disconnector incorporates an operator-independent snap-action switching mechanism with a double-breaking contact system, ensuring fast and consistent switching regardless of operating 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 33641 features a touch-safe construction when open, a lockable and sealable operating cover and compatibility with the modular 185Power busbar system. Please note that this model is listed by the manufacturer as no longer available.
Key Advantages
- Industrial NH size 3 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.
- Compatible with Wöhner 185Power 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.
- 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.
- Can be sealed in both ON and OFF positions.
- Can be locked with up to three padlocks when switched OFF.
Reliable Switching for Industrial Power Distribution
The Wöhner 33641 combines dependable switching, safe electrical isolation and high-capacity fuse protection in one robust industrial assembly. Integrated fuse monitoring enables maintenance engineers to identify blown fuse links quickly, reducing downtime while maintaining reliable circuit protection in critical installations.
Its top-entry M12 connection simplifies installation where upper cable routing is preferred, while the operator-independent switching mechanism, touch-safe construction and lockable operating cover make it an excellent solution for demanding industrial switchgear applications.
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 | |
|---|---|---|
| Device Type | Terminal / feed-in | |
| Busbar Centre Distance (mm) | 185 mm | |
| Product Series | Wöhner 185Power | |
| Poles | 3-pole | |
| Manufacturer | Wöhner | |
| Series | QUADRON® 185Power Speed | |
| Model | 33641 | |
| Full manufacturer SKU | 33641000A | |
| 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 | 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 (AC ratings only) | |
| ETIM classification | EC001046 | |
| EAN | 4021267336417 | |
| Pack quantity | 1 | |
| Availability | No longer available |
Frequently Asked Questions
What is the Wöhner 33641 used for?
The Wöhner 33641 provides safe switching, electrical 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 3 fuse links.
Does the Wöhner 33641 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 33641 is compatible with 30, 40, 60, 80, 100 and 120 × 10 mm busbars.
Is the Wöhner 33641 still available?
The manufacturer lists the Wöhner 33641 (33641000A) as no longer available. Alternative models may be available depending on the application.
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.
