In a parking attendant's shack, how many circuits are required for the receptacles if using a 120/208-volt, 3-phase, 4-wire feeder?

In a typical setting like a parking attendant's shack, the requirement for the receptacles can generally be addressed by a single circuit, especially if you're using a 120/208-volt, 3-phase, 4-wire feeder. This configuration allows for using one phase to supply the receptacles effectively.

A single circuit can adequately handle the general-purpose receptacles typically needed in such a space, which are often used to power basic equipment or tools. The load calculations would usually take into consideration the anticipated demand, and in most cases, a single circuit can suffice if it is designed properly according to the electrical codes and standards.

It's important to recognize that specific conditions or additional equipment may call for a different approach; however, under standard circumstances, one circuit meets the basic needs for receptacles in that environment. This option reflects a common practice in managing electrical load efficiently while ensuring safety and compliance with code requirements.