Why Choose the Wöhner 33640 NH In-Line Fuse Switch-Disconnector?
The Wöhner 33640 is a robust NH in-line fuse switch-disconnector designed to provide safe switching, dependable electrical isolation and reliable overcurrent protection in demanding low-voltage power distribution systems. Part of the Wöhner QUADRON® 185Power Speed series, this NH size 3 device features integrated fuse monitoring together with a bottom M12 screw connection, making it ideal for 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, ensuring fast and consistent switching regardless of handle speed. Integrated fuse monitoring enables rapid identification of blown fuse links, helping reduce downtime and improve maintenance efficiency.
Designed for installation on 30, 40, 60, 80, 100 and 120 × 10 mm busbars, the Wöhner 33640 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 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.
- Bottom 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.
- Bottom 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 in the OFF position.
Reliable Switching for Industrial Power Distribution
The Wöhner 33640 combines safe switching, dependable electrical isolation and high-capacity fuse protection in a robust industrial assembly. Integrated fuse monitoring allows maintenance engineers to identify blown fuse links quickly, reducing system downtime while maintaining reliable circuit protection.
Its bottom-entry M12 connection, operator-independent switching mechanism, touch-safe construction and lockable operating cover make it an excellent solution for modern industrial switchgear where operational safety, reliability and ease of servicing 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.
