Panel fit and supply voltage
The 3UF7020-1AU01-0: Rated supply voltage is 110... 240 V at 50/60 Hz, so it runs directly off standard industrial control power without a separate 24 VDC supply — the module powers its own control unit and relay output from that rail.
Inputs and output ratings
Current derating applies: at 50 °C the relay handles 6 A, at 60 °C it drops to 5 A — plan the load accordingly if the panel runs hot.