Air Header Installation Wiring Assembly for wall-mounted Breathing Air Stations (BAS) connects the BAS to permanent plant wiring (nuclear accepted). Assembly is terminated with a hermetically sealed connector for connection to the air and communication header box with wires enclosed in a stainless-steel flexible conduit, (approximately 2m). Terminated with conduit box connector for the wall-mounted octagonal wiring box with labelled barrier block connection strip for ease of installation to station wiring. Wiring is provided for 12 pins with blunt cut ends.