Why Choose the Wöhner 33505 QUADRON® Panel Speed Fuse Switch-Disconnector?
The Wöhner 33505 is a premium three-pole NH fuse switch-disconnector designed for safe switching, circuit isolation and overcurrent protection in industrial low-voltage power distribution systems. Part of the advanced QUADRON® Panel Speed range, it is engineered for panel builders, OEMs and machine manufacturers requiring dependable switching performance with convenient external door operation.
Featuring an operator-independent snap-action switching mechanism with double-breaking main contacts, the Wöhner 33505 provides consistent switching regardless of handle speed. It is specifically designed for use with a door coupling rotary handle, allowing safe operation from outside the enclosure while maintaining high standards of operator safety. The double-breaking design also enables quick, tool-free fuse replacement and provides a visible isolation gap when the cover and fuse carriers are removed.
Designed for NH size 00 fuse links, the Wöhner 33505 has a 125 A rated current and operates at up to 690 V AC. Its robust box-terminal connection and compact panel-mounted construction make it ideal for industrial control panels, switchboards, motor control centres and OEM electrical 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 enable safe, tool-free fuse replacement.
- Suitable for use as a mains switch or Emergency OFF switch with the correct rotary handle.
Key Features
- Wöhner QUADRON® Panel Speed series.
- Three-pole fuse switch-disconnector.
- 125 A rated current.
- 690 V AC rated operating voltage.
- Box-terminal cable connection.
- Designed for use with a door coupling rotary handle.
- FLAG indicator clearly displays the switch position.
- Panel-mounted construction for OEM and industrial switchgear.
Designed for Safe Panel-Mounted Switching
The Wöhner 33505 combines fused overcurrent protection, reliable load switching and safe electrical isolation in a compact panel-mounted device. Its spring-controlled switching mechanism delivers repeatable performance while the double-breaking contacts provide enhanced safety during fuse replacement and maintenance.
When used with a compatible Wöhner red/yellow rotary handle, the switch-disconnector can be employed as a mains isolator or Emergency OFF switch in accordance with IEC/EN 60204-1, making it well suited to modern industrial machinery and control panels.
Typical Applications
- Industrial switchboards.
- Machine control panels.
- Motor control centres.
- OEM electrical equipment.
- Industrial automation systems.
- Low-voltage power distribution panels.