@Archades wrote:

I will probably be using 7 core 0.5mm2 wire with them as well, would that be sufficient for running 24vAC 0.2amp running, 0.34amp inrush solenoids? 2 of them will be around 30meters from the OSPi so I’m not sure if that wire is thick enough to handle that current without too much voltage drop.

To keep voltage drop below 3% at 24VAC, 0.34 amps, cosphi 0.8 and a wire length of 30m, the wire cross-section needs to be at least 0.4mm^2. You’re good.