UpCodes logo
Go To Full Code Chapter
A separate overload device that is responsive to motor current. This device shall be selected to trip or shall be rated at no more than the following percent of the motor nameplate full-load current rating:
Motors with a marked service factor 1.15 or greater 125%
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.
Informational Note: Where power factor correction capacitors are installed on the load side of the motor overload device, see 460.9.

Related Code Sections

(1) Equipment for General Use, Separate Overload Device
A separate overload device that is responsive to motor current. This device shall be selected to trip or shall be rated at no more than the following ...
(1) Equipment for General Use, Separate Overload Device
A separate overload device that is responsive to motor current. This device shall be selected to trip or shall be rated at no more than the following ...