Full-Load Amps

The amount of current the motor draws under full-load (torque) conditions is called full-load amps (FLA). It is also known as nameplate amps because this is the figure that appears on the nameplate of the motor.

Locked Rotor Amps

The amount of current an electric motor draws under starting conditions when full voltage is applied is called locked rotor amps.
It is sometimes called inrush current. It can be as much as 600% percent of the full-load amps.

Service Factor Amps

Service factor is given on the nameplate of the motor. This is a rating above full-load amps at which the motor can safely operate. Many motors have a service factor of 1.15, which means the motor can handle 115% of its full-load current.