6. Marking

All electrical machines must be fitted with one or more nameplates (standard EN 60034-1). The minimum information required is :

• name of manufacturer or brand ;

• manufacturer's serial number or identification mark ;

• rated voltage ;

• rated frequency for AC machines.

Other indications are :

• power, current, speed and service ratings ;

• excitation characteristics ;

• manufacturer's machine code and year of manufacture ;

• for reciprocating machines: number of phases and rated power factor ;

• the degree of protection provided by the enclosures...