Disclosed is an arc flash resistant enclosure with segregated cooling. Disclosed examples include enclosures with segregated or divided cooling paths and improved arc flash resistance. In one example,a TYPE 12, 50 DEGREE C ambient common bus power conversion enclosure design provides enhanced arc flash protection & segregated cooling for high reliability of imbedded electronics. Example enclosures and systems can be used in association with AC/DC converters for motor drives or motor control centers, and/or for electroplating or painting systems with modular anode control (MAC) systems to implement an anodic DC electroplating for workpieces and other end use applications.