Z4 dc machines , its standard rated voltage : 160V or 440V. Values for 220V、400V and 660V or other voltage may be derived on request. And its speed: 3000、1500、1000、750、600、500、400、300、and 200rpm/min, totally nine grades.
Outline and mounting dimensions of the motors comply with IEC72 Standard, except for the axial distance between the mounting holes (dimention B)
Performance and technical requirements of the motors can be checked in accordance with IEC 34-1 standard of the Internatinal Elcetro technical Commision , or DIN 57530 Norm of the Deutsche Industrie-Norm.