Abstract: Disclosed herein is a power electronic device assembly for preventing parasitic switching-on of a feeder circuit breaker. The assembly includes a logic circuit, a power switch with an input and a reference leg, and a driver circuit which drives the power switch. The driver circuit includes a drive unit and a short circuit having a safety function. When the input of the power switch is not operated, the power switch is short-circuited by the reference leg so that the potential of the input decreases below a switching-on threshold. An additional wire connection device is disposed between the driver circuit and the power switch and configured such that when no or excessively small amount of supply voltage is applied, the input of the power switch is short-circuited or is coupled to a safety potential at which discharge is secured, whereby discharge of parasitic charge current is secured.