Electrical switching device with a triple motion contact arrangement

Contact arrangement having a longitudinal axis (z), and comprising:

• a first contact group with a first contact and a second contact;
• and
• a second contact group with a third contact and a fourth contact;
• wherein the first contact interacts electrically and mechanically with the third contact, and/or the second contact interacts electrically and mechanically with the fourth contact, for closing and opening the contact arrangement;
• wherein at least one mechanical coupling is provided for transmitting an actuation force to the second contact group for moving the second contact group;
• and
• wherein the at least one mechanical coupling is adapted to move the third contact and the fourth contact in such a way that their speeds will differ along at least a portion of a travel path of the third contact or along at least a portion of a travel path of the fourth contact.