Method for producing switching device for electrical system

A method for manufacturing a switching device of an electrical system, characterized in that it comprises the following steps: providing a first housing housing of the switching device, the first housing housing being made of a thermoplastic material and comprising a first coupling edge for coupling with another housing housing, the first coupling edge having a first coupling surface and a first rib; providing a second housing housing of the switching device, the second housing housing being made of a thermoplastic material and comprising a second coupling edge for coupling with the first housing housing, the second coupling edge having a second coupling surface and a second rib; assembling the first and second housing housings and a plurality of operating components of the switching device, thereby obtaining a preliminary assembly of the switching device; the first coupling edge of the first housing housing and the second coupling edge of the second housing housing are joined by a vibration welding process,