Are Relpol 12V/8A relays suitable for controlling roller shutters with Integra?

hello, I would like to connect roller shutters to the Integra. I would like to use a system like the one shown on the attached picture, i.e. if the relays do not work, I can control them using the buttons next to the roller shutter and when the system closes the shutters, it cuts off the phase to the switch so that the user does not open them while they are being closed. For this purpose, I would like to use 2 relays with a 12 V coil which would be powered from the 4-wire cable through the control panel. Everything seemed ok, but a friend dissuaded me from this idea by saying that the relays are faulty and there could be a problem and that I would have more problems with this solution in the future. Now the question... will it really work and should I use something else or should I trust the relays and stick with the planned option? I should add that the relays are miniature relpol 12V / 8A and not some Chinese crap. Honestly, I was looking for ready solutions, but I found something similar from zamel, but wireless and since I already have a wire, maybe a wired solution? Thanks for any advice

Your idea (diagram) is OK.
As for the miniature relays - powers satisfactory but such a small gap on the contacts that this can cause damage - especially as you are powering the motor with a capacitor. Relays in the switchgear, so on stands (on TS35 rail) - I would give larger ones e.g. Finder http://www.conrad.pl/?websale8=conrad&pi=...eocl=1&rdetpl=productpage&rdebox=box3

i have already used the F&F controllers because I will be able to stop the roller shutter when opening/closing the central unit, which is also a plus. The controllers were not cosmically expensive at 64PLN. From the description they meet my expectations but I will write about the effects only after I install:)

It's been a while since I installed these controllers and I must write that they are average. I have installed 11 of them, of which 2 have been damaged during use. In the course of 6 months they have broken at various intervals. So far, so good. The controllers were replaced under guarantee, but the time taken to dismantle and reassemble them and the shipping costs effectively discouraged me from buying them again, and my customer's opinion is my own. He now uses Zamel, gently more expensive but I have fitted them in the past and had no problem with them. That's all on this topic. Regards