Abstract: A cable head includes a plurality of modular connection units, the insulating base of which bears rear and front connection members, and one earthing component. The cable head includes, in addition for each connection unit, at least one protection module which can be plugged into the base from the front, the module comprising a body of insulating material exhibiting two side-housings intended to each receive one lightning arrester, and of two pairs of wrap-around contact components arranged on the body and effecting on the one hand the contact between the front and rear connection members arranged face to face and on the other hand the contact with earth, each pair of contact components associated with a lightning arrester ensuring both the retention of the lightning arrester in its housing and reinforcement of the clamping onto the tails of the lightning arrester upon plugging in the module.