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Motor Connections

 

Nema Nomenclature

  Single Phase
    Single Voltage
    Dual Voltage (run winding)
    Dual Voltage (run and start winding)
 
  Three Phase
    Constant torque - 6 leads
    Variable torque - 6 leads
    Constant horsepower - 6 leads
    Single voltage - 6 leads
    Single and dual voltage (wye-delta) - 6 leads
    Dual voltage - 9 leads (wye connected)
    Dual voltage - 9 leads (delta connected)
    Dual voltage - 12 leads (external wye connected)
    Dual voltage - 12 leads (wye-connected start & delta-connected run)
 

IEC Nomenclature

  Three Phase
    Constant torque - 6 leads
    Variable torque - 6 leads
    Single voltage - 6 leads (wye-delta connections)
    Dual voltage - 6 leads (wye-delta connections)
    Dual voltage - 12 leads (wye-connectioned start & delta-connected run)
 
Click here to download the motor connection pages

 

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