1, the efficiency η: motor output mechanical power and the input power ratio, usually expressed as a percentage.

2, power factor cosφ: motor input active power and apparent power ratio.

3, Stall current I1 (starting current Ist): motor at rated voltage, rated frequency and rotor blocked input from the power supply circuit maximum steady-state rms current.

4, stall torque T1 (starting torque Tst): motor at rated voltage, rated frequency and blocked rotor torque generated when the minimum measured values.

5, the minimum torque Tu (Tmin): the motor at rated voltage, rated frequency, at zero speed and the rotation speed corresponding to the maximum torque generated between the minimum torque steady asynchronous.

6, the maximum torque Tb (Tmax): motor at rated voltage, rated frequency can produce maximum steady-state asynchronous torque.

7, Noise: Motor no-load steady-state operation in the A-weighted sound power level (dB (A)), as well as in over-load rated load operation is running sound power level increment.

8, vibration: the motor load rate of vibration RMS steady-state operation (mm / s)