
Retractive wall switch for manual open and close control of window actuators. Spring-return rocker, surface mount. For natural ventilation systems.
- Retractive
- Surface Mount
- Open / Close
- 24V / 230V

Key operation ensures that manual override of roof vents and high-level windows is restricted to authorised users, preventing accidental or unauthorised operation.
Operates independently of the automatic control system, providing a reliable manual override path even if the main controller loses power or develops a fault.
Surface-mount enclosure installs neatly at any convenient wall position, with a clean finish suitable for public areas and plant rooms alike.
Requires a physical key to operate, restricting manual override to authorised personnel and preventing accidental operation of roof vents.
Provides a direct manual open/close path to connected actuators that operates independently of the main control system.
Compatible with both 24V DC and 230V AC actuator systems, making it suitable for use across the full range of Topp and Ventec actuators.
Surface-mount wall box installs neatly at any accessible control position, with standard back box dimensions for easy fitting.
Used as a manual override position for smoke ventilation roof vents, allowing authorised personnel to operate vents for maintenance or fire system testing.
Provides secure manual control of automated natural ventilation windows in buildings where unauthorised operation must be prevented.
Positioned at ground or mezzanine level to allow authorised staff to open or close roof-mounted vents without requiring physical access to the roof.
Key-operated mechanism prevents unauthorised operation of roof vents, ensuring manual override is restricted to authorised personnel only.
Allows direct manual open and close control of connected window actuators, independent of the automatic control system.
Wall-mounted surface box suitable for installation at ground floor level, plant rooms or other designated control positions.
Suitable for both AOV smoke ventilation and natural ventilation systems where authorised manual override is required.
Our team can advise on switch placement and wiring for manual override positions in your ventilation system.
Call us: 01202 725 485
Email us: info@vent-trade.co.uk