Separate +12V to Kincony, +24V to MOSFETs - Printable Version +- Smart Home Automation Forum (https://www.kincony.com/forum) +-- Forum: Technical Support (https://www.kincony.com/forum/forumdisplay.php?fid=72) +--- Forum: T128M (https://www.kincony.com/forum/forumdisplay.php?fid=82) +--- Thread: Separate +12V to Kincony, +24V to MOSFETs (/showthread.php?tid=8902)

Separate +12V to Kincony, +24V to MOSFETs - Toper - 01-11-2026 Hi, I have a question about power supply for T128. I'm using 24 V relays (Finder 40.52) connected to the Digital Outputs. I am considering two power options: Two power supplies (this version works fine since 2 days): 12 V for the Kincony board (VCC), 24 V only for the outputs, common ground (GND) for both power supplies. One 24 V power supply: 24 V connected to VCC and to LO. My questions: Is it safe to connect the grounds (GND) of the 12 V and 24 V power supplies together? Does the manufacturer recommend using a common ground in this case? From thermal and reliability point of view, is it better to power everything with 24 V, or use 12 V for VCC and 24 V only for outputs? Thank you in advance for your help. regards, Toper RE: Separate +12V to Kincony, +24V to MOSFETs - admin - 01-11-2026 i suggest you use one 12v or 24v power supply is better. But you can also use two different power supply, just need let two power supply GND connected together.