In summary, the Switchcraft sealed power plug and jack is an excellent compact connection to deliver power to harsh environment applications. The plugs and jacks create a cost effective IP66, IP67, or IP68/NEMA 250 (6P) rated product which can handle most severe applications. The simple weather tight construction is easy for installation and can be applied in almost any situation. The jack has a shunt spring contact to enable a change-over circuit when not connected to an external source. The plugs are available in popular diameters with colored insulator rings to indicate the size. There is an available cap for the jack which gives the unconnected jack the same IP rating as it would have when mated. The connectors are rated for 5A carry current at up to 30V at 65ºC.