Electrical plug connector with multiple lever systems for facilitating plugging and/or releasing and plug connector assembly therefor

A plug connector assembly, comprising:

• a plug connector to be plugged along a plug-in direction into a mating plug connector having a mating plug connector housing, the plug connector including:
• a plug connector housing;
• a plurality of electrical contact elements, which are situated in the plug connector housing;
• and
• a first lever system configured to reduce an operating force when the plug connector is plugged into and/or released from the mating plug connector, the first lever system being rotatably supported on the plug connector housing, and including:
• a first arm and a second arm, the second arm being pivotably disposed on the first arm using a first joint pin, the first joint pin being movable in the plug connector housing in a first guide slot, wherein the first guide slot is situated in a wall of the plug connector housing, which essentially extends along the plug-in direction,
• a first guide system between the first arm and the plug connector housing, the first guide system having a first guide element and a first guide receptacle to accommodate the first guide element,
• a second guide system between the second arm and the plug connector housing, the second guide system including a second guide element and a second guide receptacle to accommodate the second guide element,
• a first engagement element, which is situated on the first arm and is configured to engage with a first counter element on the mating plug connector housing, and
• a second engagement element, which is situated on the second arm and is configured to engage with a second counter element on the mating plug connector housing;
• and
• the mating plug connector, the mating plug connector having the mating plug connector housing having counter elements including the first and second counter elements.