Electrical connecting device

An electrical connecting device for connecting a to-be-connected housing element that supports to-be-connected terminals arranged in substantially rectilinear form, comprising:

• a connecting housing element having terminal supporting parts arranged in substantially rectilinear form;
• connection terminals disposed on the connecting housing element, wherein the connection terminals respectively, comprise:
• terminal connecting parts disposed in the terminal supporting parts and configured to electrically connect the to-be-connected terminals,
• wire connecting parts configured to connect wires extending along a surface of the connecting housing element at ends on the side opposite the terminal connecting parts, and
• bent parts disposed between the terminal connecting parts and the wire connecting parts;
• and
• a cover element configured to be attached to the connecting housing element so as to cover the connection terminals,
• wherein the wires are supported between the connecting housing element and the cover element, and
• wherein the cover element has a rounded lid part formed in an arcuate shape in cross section perpendicular to the direction in which the wires extend.