What voltage is the compressor motor rated for under normal conditions?

The rated voltage of a compressor motor under normal conditions typically aligns with industry standards for industrial refrigeration systems. In the United States, a common three-phase supply voltage used in many industrial applications, including refrigeration, is 480 VAC. This voltage is widely used due to its efficiency in power distribution and its capability to drive larger amperage loads without excessive energy loss.

In industrial settings, 480 VAC allows for the proper functioning of heavier refrigeration equipment, such as large compressors, which often require high starting torque and stable operation under varying loads. This voltage level supports the demand for reliable and efficient performance in environments where refrigeration systems are utilized extensively.

While other voltages like 220 VAC, 380 VAC, and 600 VAC might be applicable in certain situations or particular geographical regions, they are less common for typical compressor motors in industrial refrigeration within the United States. Thus, 480 VAC is recognized as the standard for these applications, making it the correct answer to the question about the compressor motor's rated voltage under normal conditions.