Embodiments disclose a power distributor for a vehicle, comprising a printed circuit board for diagnosis and/or for controlling a power supply of a plurality of electrical loads connected to the power distributor, and a bus bar comprising a plurality of first plug contact parts. According to the present disclosure, the printed circuit board comprises a switch part for collectively controlling the power supply of multiple electrical loads via the bus bar disposed separately from the printed circuit board, wherein the first plug contact part of the bus bar together with a second plug contact part disposed on the printed circuit board form a plug contact pair, and a load connected to the respective second plug contact part can be supplied via each plug contact pair.