Since 1955, Costruzioni Elettromeccaniche P. Torresan Srl has been active producing components for substations in electricity distribution grid: annunciator/flag alarm relays, voltage presence/absence detectors, heaters.
In more recent years, Costruzioni Elettromeccaniche P. Torresan Srl has developped and patented innovative surge protective devices which electronically detect, control and block all over-currents and over-voltages.