Electrifying roller shutters and awnings – motorization and control
Electric roller shutters and awnings significantly increase living comfort: at the touch of a button, via timer, or automatically via sensors and smart home systems. This guide shows you what you need to consider when installing electrical systems.
Quick info on shading
- 5-wire cable (NYM-J 5×1.5) to the roller shutter box for smart home capability
- Tubular motors are standard – installation in the roller shutter shaft
- Central control and sensors increase comfort and safety
Overview of engine types
There are various drive concepts for motorizing roller shutters and awnings:
Tubular motor (standard)
The motor is concealed in the roller shutter shaft. Standard for new buildings and retrofitting. Torque depending on roller shutter size (6–50 Nm). Connection: 230V, 3-wire (up/down/neutral).
Surface-mounted motor / belt winder
Replaces the manual belt winder. Easy retrofitting without interfering with the roller shutter box. Plug-in connection or flush-mounted version available.
Battery/solar motor
Wireless solution with integrated battery and optional solar panel. Ideal for retrofitting without cable installation, but limited power and battery life.
Electrical connection
Cabling to the roller shutter box
A 3-wire cable (phase up, phase down, neutral conductor) is routed to the tubular motor as standard. For smart home capability, a 5-wire cable (NYM-J 5×1.5) is recommended: phase, neutral conductor, PE plus two switched phases for up/down – or continuous current for a flush-mounted actuator.
Switches and push buttons
Roller shutter motors are operated using rocker switches (up-stop-down). Unlike normal light switches, roller shutter switches are designed as latching switches or momentary switches. Simple switches are sufficient for smart home control.
control options
Button / Switch
Classic operation via rocker switch next to the window. Each window has its own switch. Simple, reliable, inexpensive.
time switch
Automatic raising and lowering at fixed times. Astro function adjusts to sunrise/sunset. Can be configured centrally or per window.
Wind/sun sensors
Wind sensor automatically retracts awnings in stormy weather (mandatory for awnings!). Sun sensor controls shading according to sunlight.
Smart home integration
KNX blind actuators, Shelly relays, or Homematic actuators enable control via app, voice assistant, and scenes. Central function: all blinds simultaneously.
Practical tips for roller shutters and awnings
1. 5-wire cable to the roller shutter box
Even if you don't currently plan to install smart home controls, a 5-wire cable (NYM-J 5×1.5) allows you to retrofit a flush-mounted actuator at a later date without having to lay new cables.
2. Plan for central control
A central button in the hallway or entrance area for 'All shutters down/up' greatly increases convenience. Particularly practical when leaving the house.
3. Wind sensors for awnings are mandatory
A wind sensor protects the awning from storm damage. Without a sensor, the warranty may be void. The sensor automatically retracts the awning at wind force 5–6.
4. Flush-mounted actuators for smart retrofitting
WLAN actuators (e.g., Shelly 2.5) fit behind the roller shutter switch and make any motor smart—without central control, without KNX, without complex wiring.
Conclusion: Electric shading increases comfort and property value
Motorized roller shutters and awnings are now standard in new buildings and can also be retrofitted in existing buildings. Proper wiring during construction saves on retrofitting costs later on.
Tip: Plan the roller shutter wiring together with the rest of the electrical installation—the cables will be laid in the same slots.