Power distribution center

A power distribution center (PDC) is electrical equipment designed to regulate the distribution of electrical power to various equipment, be that to machines in a factory or to various systems on an automotive vehicle. Typically, a switchgear supplies power to the PDC. The PDC housing contains a transformer, which steps down the incoming power to a lower voltage to feed other plant loads such as motor control centers (MCC's).

Source: Wikipedia — Power distribution center (CC BY-SA 4.0)