STACKABLE POWER DISTRIBUTION SYSTEM INCLUDING MULTIPLE POWER DISTRIBUTION UNITS IN ELECTRIC VEHICLES

A power distribution system is provided that includes a first Power Distribution Unit (PDU) and a second PDU. The first PDU and the second PDU each include a plurality of first PDU power outputs and open tops and bottoms that expose busbars located in the PDUs. The second PDU is placed atop the first PDU and forms a seal between the two PDUs. Electrical connection fasteners are used to electrically and mechanically connect the busbars in the first PDU to the busbars in the second PDU. The bottom opening of the first PDU is hermetically sealed with a bottom lid, and the top opening of the second PDU is hermetically sealed with a top lid.