Why Choose the Wöhner 33503 QUADRON® 60Classic Speed Fuse Switch-Disconnector?
The Wöhner 33503 is a high-performance NH fuse switch-disconnector designed for safe switching, isolation and overcurrent protection in industrial low-voltage power distribution systems. As part of the advanced Wöhner QUADRON® 60Classic Speed range, it is specifically developed for machine builders, panel manufacturers and OEMs requiring reliable switching combined with external door operation.
Featuring an operator-independent snap-action switching mechanism with double-breaking main contacts, the Wöhner 33503 delivers fast, dependable switching regardless of handle speed. It is designed for use with a door coupling rotary handle, allowing safe operation without opening the electrical enclosure while maintaining high levels of operator protection.
With a rated current of 125 A, support for NH size 00 fuse links and compatibility with 60Classic busbar systems, the Wöhner 33503 is ideal for industrial switchboards, motor control centres and machinery power distribution. Its bottom box-terminal connection simplifies wiring while ensuring secure electrical connections.
Key Advantages
- Industrial NH fuse switch-disconnector with door-coupling operation.
- 125 A rated current for 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.
- Bottom box-terminal connection.
- Designed for door coupling rotary handle.
- FLAG switch position indicator.
- CrossLink® adapter technology for secure busbar mounting.
Reliable Switching for Industrial Power Distribution
NH fuse switch-disconnectors combine switching, isolation and overcurrent protection in a single compact assembly. The Wöhner 33503 enables operators to safely isolate circuits for maintenance while protecting equipment from overloads and short circuits.
Its door-coupling operation allows switching from outside the control panel, improving safety and convenience in industrial environments. The integrated CrossLink® mounting system also reduces installation time while providing reliable long-term electrical performance.
Typical Applications
- Industrial switchboards.
- Motor control centres.
- Machine control panels.
- OEM electrical equipment.
- Industrial automation systems.
- Power distribution installations.
