Patent ID: 8675380

Claim:
A plug type power supply unit with a housing and a switched power supply arranged in the housing, wherein: the switched power supply comprises a first stage that is set up for rectification of an AC line voltage, and a second stage that is set up to output a DC voltage generated from the rectified AC line voltage; the first stage has an electromechanical switch, via which a first line voltage range or a second line voltage range can be selected; the housing has a receptacle for a plug unit; the AC line voltage can be sent to the first stage via the plug unit when the plug unit is connected in the receptacle; and the receptacle has a hole that is suitable for receiving a pin of the plug unit when the plug unit is connected in the receptacle, wherein the switch is located such that it can only be actuated by the pin inside the housing, wherein the pin provides the second line voltage range but not the first line voltage range.