Why Choose the Wöhner 33504 QUADRON® 60Classic Speed Fuse Switch-Disconnector?
The Wöhner 33504 is a robust three-pole NH fuse switch-disconnector engineered for safe switching, circuit isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the proven QUADRON® 60Classic Speed range, it combines dependable performance with external door operation, making it ideal for machine builders, panel manufacturers and industrial electrical installations.
The unit features an operator-independent snap-action switching mechanism with double-breaking main contacts, ensuring consistent switching performance regardless of handle operation. Designed for use with a door coupling rotary handle, it allows safe switching from outside the enclosure while maintaining high levels of operator safety. The double-breaking contact system also enables safe, tool-free fuse replacement and provides a visible isolation gap when the fuse carrier is removed.
Designed for NH size 00 fuse links, the Wöhner 33504 has a 125 A rated current and supports operation up to 690 V AC. Its top box-terminal connection simplifies wiring while integrating directly with Wöhner 60Classic busbar systems, making it suitable for industrial switchboards, motor control centres and OEM equipment.
Key Advantages
- Industrial NH fuse switch-disconnector with external door-coupling operation.
- 125 A rated current for reliable industrial power distribution.
- Compatible with NH size 00 fuse links.
- Operator-independent snap-action switching mechanism.
- Double-breaking contacts for safer fuse replacement.
- Suitable for use as a main switch or Emergency OFF switch with the appropriate rotary handle.
Key Features
- Wöhner QUADRON® 60Classic Speed series.
- Three-pole fuse switch-disconnector.
- 125 A rated current.
- 690 V AC rated operating voltage.
- Top box-terminal connection.
- Designed for use with a door coupling rotary handle.
- FLAG indicator for clear switch position indication.
- CrossLink® adapter technology for fast busbar installation.
Designed for Safe Industrial Switching
The Wöhner 33504 combines fused overcurrent protection, reliable switching and secure electrical isolation within a compact device. Its spring-controlled switching mechanism delivers consistent performance, while the double-breaking contact arrangement enhances safety during fuse replacement and maintenance.
When used with the appropriate Wöhner red/yellow door coupling rotary handle, the switch-disconnector can serve as a main isolator or Emergency OFF switch in accordance with relevant industrial standards, making it an excellent choice for modern switchgear assemblies.
Typical Applications
- Industrial switchboards.
- Machine control panels.
- Motor control centres.
- OEM electrical equipment.
- Industrial automation systems.
- Power distribution installations.
