Patent ID: 7223116

Claim:
An insulation piercing connecting device, comprising: an insulation piercing connector, held in a base body; a closing element, guided in the base body and transferable at least from one open position into a closed position, wherein, in the open position, a conductor is insertable into the closing element and wherein, by transferring the closing element into the closed position, a conductor inserted into the closing element is insertable into the insulation piercing connector to be held by the insulation piercing connector; and an over spring, surrounding the insulation piercing connector and contacting the insulation piercing connector via contact pieces and thereby exerting a pressing force on the insulation piercing connector, wherein the over spring is arranged on the closing element so that, in the open position, the contact pieces contact the insulation piercing connector in opening contact regions and in the closed position, contact the insulation piercing connector in closing contact regions.