This article covers a scenario that a brand new machine trips the breaker upon start up
The wiring for the 24V power supply needs to be checked and corrected.
Correct Wiring:
Location of 24V Power Supply by Machine :

Due to minor changes, the exact location may vary a bit
Nova 24:
Back of the machine to the left of the exhaust port behind the small blue door
Nova 35:
Right hand side of the machine, lower blue door. Tucked behind the 3V power supply
Nova 51 and 63:
Right hand side of the machine, lower blue door. Mounted to the DIN rail in the control panel area