(A) More Than 1 Horsepower
|Motors with a marked service factor||125%|
|1.15 or greater Motors with a marked temperature rise 40°C or less||125%|
|All other motors||115%|
Modification of this value shall be permitted as provided in 430.32(C). For a multispeed motor, each winding connection shall be considered separately.
Where a separate motor overload device is connected so that it does not carry the total current designated on the motor nameplate, such as for wye-delta starting, the proper percentage of nameplate current applying to the selection or setting of the overload device shall be clearly designated on the equipment, or the manufacturer's selection table shall take this into account.
|Motor full-load current 9 amperes or less||170%|
|Motor full-load current from 9.1 to, and including, 20 amperes||156%|
|Motor full-load current greater than 20 amperes||140%|
If the motor current-interrupting device is separate from the motor and its control circuit is operated by a protective device integral with the motor, it shall be arranged so that the opening of the control circuit will result in interruption of current to the motor.