CP 52 selector can be used in 100V constant voltage systems to select 1 out of maximum 5 available lines. The maximum total power of the output load cannot exceed 120W. It includes a 24VDC override relay to bypass the 6 position (5 + off) selector and route the first input (J1 terminal) directly to the output. CP 52 can be installed on whichever supporting frame for home / office electrical systems by drilling a hole in a blank key and fixing it. 3 knobs are included in 3 different colours: white, silver, anthracite.