Abstract: For a single-pole contact system for high currents, consisting of a rigid socket part (1) and a plug-in part (2) comprising elastic contact lamellae (16), it is proposed that the plug-in part (2) is provided with a pin-type projection (9), a cylindrical contact part (15), on which are fashioned elastic contact lamellae (16), is pushed on to the pin-type projection (9), the free ends of the contact lamellae pointing towards a conical transition (12) from the plug-in part (2) to the pin-type projection (9) and, at the front end of the projection, there is provided a pressure part (20) which acts on the contact part (15), the free ends of the contact lamellae (16) being pressed against the cone so that they are pressed radially outward, i.e., against the inside of the socket.

Abstract: For an electrical plug connection for connecting electrical leads to a motor, the said connection consisting of a first plug connection half, which is disposed in a flange-type or attachment-type housing attached to the motor, and a second plug connection half which can be plugged together with the first plug connection half, it is proposed that the first plug connection half be provided with a contact pin carrier, the contact pins of which are connected to the connecting leads of the motor, and that the second plug connection half be equipped with a socket carrier, to the contact sockets of which the leads of a connecting cable can be connected.

Abstract: For an electric plug and socket connection with one or two locking shackles, which can be pivoted about bearing studs of the one half of the plug and socket connection, locking elements, disposed on the side parts of the plug and socket connection, overlapping, in the locked position of the plug and socket connection, locking studs disposed on the other half of the plug and socket connection, it is proposed that pockets be provided in the side parts and spring elements be inserted in these pockets, which spring elements act on the locking elements, or that tiltable locking elements be provided at the spring elements.