This video explains how to carry out an electrical installation of a house with a shared NOM electrical circuit. protection switches are used for each 20A circuit
supply voltage of 240 volt and 120V.

triangle star: https: //   / watch   v = 7rhwV6qnrh0
chime connection: https: //   / watch   v = fuaxlJXdef8
motor spin reversal: https: //   / watch   v = FPoiQI4OMX8
photocell connection: https: //   / watch   v = ySC2RsqKwtc