A device for connecting a servomotor to at least one electrical cable includes an external housing with at least one cable input, blocked by the cable in operation, and an opening closed by an electrical connection element and forming an interface with the servomotor. The electrical connection element includes a wall of an insulating material and elongate electrical contacts that extend through the wall in a direction substantially orthogonal to the wall, each electrical contact including an inner end inside the device for connection to an electrical cable, and outer end outside the device for being connecting to a corresponding electrical contact of the servomotor. The external housing includes an opening for draining fluid from inside the device in the operational configuration device, and the wall of the electrical connection element extends along a portion of the inner end of the electrical contacts.