ᐅ Is it possible to operate roller shutters with individual switches and a central timer?

Hello everyone,

I am currently building and have a question about roller shutters.

1) We would like our roller shutters to all open and close simultaneously using a central timer switch (morning and evening), and then be able to operate each roller shutter individually with a switch located directly at each window.

Is this possible with a standard, conventional wiring system? I have heard something about a relay or isolating relay. If this is possible, how would the wiring look?

2) For the individual roller shutters, do you need to install a junction box at each location for the electrical cable, or would a standard flush-mounted box be sufficient?

I would be very grateful for some serious and good advice.

Good luck
Gerd

Yes, that is possible, although using wireless control is obviously simpler. But the wiring looks roughly like this:



or like this:





depending on which motors and switches you use.

Is it possible to have both?

A switch that allows me to control each roller shutter individually, and then a timer switch to operate all the shutters on the floor at once? Or does the last picture already show both?

Is a changeover relay definitely required?

Yes, both options are certainly possible. For example, the first picture shows individual and central control.

The last picture depicts two groups, meaning 2 x 4 windows.

Each group can then be operated either individually or together.

So basically, any conceivable configuration is possible; the more blinds, the more cables and separation relays are needed.

@Mycraft
That means I need 6 conductors going to my switch.

Regarding the first picture,
I have two motors, M1 and M2, with switches next to each.
On the far left is my timer switch, which operates my switches, and then these switches control my motors. Is that correct for the terminals 1 and 2 on the switch shown in the picture?
Do the isolation relays need to be installed directly at the switch?

And are these special switches from a specific brand?