What is the purpose of a disconnecting means for stationary motors?

The purpose of a disconnecting means for stationary motors is to ensure the ability to safely disconnect the power supply to the motor. This is essential when maintenance or repair is needed, as it eliminates the risk of accidental electrical shock or equipment operation while personnel are working on the system. By providing a clear and reliable method to cut off the power, it safeguards workers and ensures that the equipment can be safely serviced.

While options regarding electrical shock protection and safe operation are related considerations, they are indirect effects of having an effective disconnecting means. The primary function is explicitly to disconnect power safely, which is crucial for both worker safety and equipment protection during maintenance operations. Reducing energy consumption does not pertain to the function of a disconnecting means; rather, that would involve different measures or technologies related to energy efficiency.