In this glossary we explain the most important technical terms related to electric window actuators, natural ventilation and smoke and heat exhaust. Short, clear and with practical examples.
Terms from A to Z
- Outer frame and sash – fixed and moving part of the window
- Mounting position – where and how the actuator sits on the window
- End-position cut-off – automatic stop in the end position
- safety stay – secures the tilt sash against falling
- Main closing edge and secondary closing edge – pinch points on the motorised window
- Stroke length – how far the actuator extends
- Bracket – fastening the actuator to frame and sash
- Load cut-off – stop on obstacle or overload
- NRWG – natural smoke and heat exhaust ventilator
- Opening width – how far the window opens
- RWA – smoke and heat exhaust ventilation system
- Thrust – how much force the actuator opens with
- Protection class (IP code) – protection against dust and water
- Tandem and synchronous operation – several actuators on one sash
Solutions by window type
- Open and retrofit tilt windows electrically
- Open and retrofit roof windows electrically
- Retrofit a rooflight with a motor
More terms will follow. Detailed instructions can be found in the Guide.
Not sure which actuator fits? Call us: 040 50694631 (Mon–Fri 8 am–5 pm) or use the actuator finder.