Electrical connecting device with spring connecting element with compact actuator and multi-pole connector comprising a plurality of said spring contacts

Electrical connecting device comprising an electrical insulating body with at least one pair of longitudinal parallel seats and adapted to house, respectively, a connecting element with a spring terminal and an actuator pin having a cam profile oriented towards a spring of the terminal to cause the opening and closure of the terminal by sliding into the corresponding seat, said spring being a ring-shaped spring having a curved lower portion, a back ascending portion in form of a leg engageable with a projecting portion of said cam profile of the actuator pin and an upper portion with a slot adapted to receive at least one electrical conductor,

• characterized in that said actuator pin is provided with a hollow seat delimited by two lateral walls adapted to receive said ascending leg of said ring-shaped spring when the spring is in the maximum extroversion status, that is when the terminal is closed and empty and in that said ascending leg of the spring has the tapered sides to be housed in said hollow seat of the actuator pin.