3 phase incoming supply

Are the units cross phase compatible/safe?
IE: is it ok to use 2 transformers & 2 power supply’s (IE: 1 on each floor of the building) on different phases of a 3phase incoming main electric supply.
All floors would be bus connected.



Yes, because there is no direct connection to the phases.
All Velbus items are hooked-up to the secundary sides of the transformers. Make sure the (-) of power supply 1 is connected to the (-) of power supply 2