What is the primary purpose of using a nameplate on an electric motor?

The primary purpose of using a nameplate on an electric motor is to display electrical ratings. This nameplate serves as a critical reference for users and installers, providing essential information such as voltage, current, frequency, power factor, and motor type. These ratings are necessary for ensuring the motor is operated within its intended parameters, which helps to prevent overheating, mechanical failure, or electrical overload. The nameplate data facilitates proper selection of electrical supply and protective devices, ensuring reliable and efficient operation of the motor.

In contrast, while aesthetics may play a role in some designs, it is not the main purpose of the nameplate. Safety warnings, although important, are typically not the primary function of this component. Warranty information is often found in the documentation of the product rather than on the nameplate itself, as the nameplate is focused mainly on operational specifications.