What is the minimum size circuit conductor for Motor #1 between the panel and the wireway?

To determine the minimum size circuit conductor for a motor, one must consider the motor's full load current and the guidelines provided in the National Electrical Code (NEC). The minimum conductor size is generally derived from the motor's rated amperage, ensuring it can handle the load without overheating or causing voltage drop issues.

For most motors, the NEC provides a table that indicates the appropriate wire size based on the motor's horsepower and voltage rating. If Motor #1 is a typical motor, a conductor size of 8 AWG frequently aligns with the requirements for many standard motors, especially when accounting for factors like temperature ratings, wire insulation types, and any necessary ampacity adjustments for length and circuit conditions.

Using 8 AWG ensures that the circuit can safely carry the motor's full load current and provides a margin above the minimum requirement, helping to prevent overheating and allow for potential increases in load. This choice helps maintain efficiency and safety within the electrical system.