Why Choose the Wöhner 33637 NH In-Line Fuse Switch-Disconnector?
The Wöhner 33637 is a heavy-duty NH in-line fuse switch-disconnector designed for safe switching, dependable circuit isolation and reliable overcurrent protection in industrial low-voltage power distribution systems. As part of the Wöhner QUADRON® 185Power Speed series, this NH size 1 device incorporates integrated fuse monitoring and 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 features an operator-independent snap-action switching mechanism with a double-breaking contact system, ensuring fast, consistent switching regardless of handle operation. Integrated fuse monitoring provides immediate indication of blown fuse links, helping minimise downtime and simplify maintenance.
Designed for installation on 30, 40, 60, 80, 100 and 120 × 10 mm busbars, the Wöhner 33637 forms part of the modular 185Power system. It requires the appropriate mounting accessories and incorporates a lockable, sealable operating cover with touch-safe construction for enhanced operator safety.
Key Advantages
- Industrial NH size 1 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 convenient cable routing.
- Compatible with standard 185Power industrial busbar systems.
- Lockable and sealable operating cover.
Key Features
- Wöhner QUADRON® 185Power Speed series.
- Suitable for NH size 1 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 cover is open.
- Lockable cover with double-bit lock.
Reliable Switching for Industrial Power Distribution
The Wöhner 33637 combines dependable switching, safe electrical isolation and high-capacity fuse protection in one industrial assembly. When fitted with suitable NH size 1 fuse links, it protects electrical installations against overloads and short circuits while integrated fuse monitoring enables maintenance personnel to identify faults quickly and efficiently.
Its top-entry M12 connection is ideal where upper cable routing is preferred, while the snap-action mechanism, touch-safe construction and lockable cover make it an excellent solution for industrial switchgear requiring maximum safety, reliability and ease of maintenance.
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.
