[ Totalizators, solely for use in switchboards and/or panels; ] Ammeters, solely for use in switchboards and/or panels; speed indicators, solely for use in switchboards and/or panels; temperature indicators, solely for use in switchboards and/or panels, water level indicators, solely for use in switchboards and/or panels; [ revolution counters, solely for use in switchboards and/or panels; ] electric installations for the remote control of industrial operations, solely for use in switchboards...