This International Standard specifies the following characteristics and requirements for a general purpose three-pin electrical plug connector with earth contact for use with a single solenoid: — the electrical characteristics of the connector; — the dimensions of the pins and earth contact; — the means for fixing the socket to the plug; — the sealing procedure between the plug and the socket; — usage requirements. The electrical plug connector specified in this International Standard is intended to be used under working conditions where the connector cannot be damaged by external action (for example, shock or excessive loading).