Using information found in solution by Lionel / Canaletto, I’ve created a ZHA quirks for Legrand/Bticino contactor. Then I was able to set “mode” attribute to 3, so that HA is now able to set on/off state to the contactor.
hi, did you pull the quirk or published it somewhere? mind sharing it? i want to buy and use a fc80cc also, it’s confirmed working here Bticino DIN Contactor 20A FC80CC Zigbee compatibility with z2m but i’ve switched to zha so maybe i could get it to work with your solution.