Professional calculator for 480 volt three-phase industrial circuits. Essential for motors, HVAC systems, and commercial installations.
480V 3-phase is the standard for industrial motors in North America. Proper wire sizing ensures efficient operation and reduces heat buildup.
Rooftop units, chillers, and air handlers typically use 480V for improved efficiency in commercial buildings.
CNC machines, welders, compressors, and production equipment rely on stable 480V power for consistent operation.
Main distribution and sub-panels in commercial facilities distribute 480V to various loads throughout the building.
| Current (A) | Copper | Aluminum | Typical Load |
|---|---|---|---|
| 30A | 10 AWG | 8 AWG | Small motor, unit heater |
| 60A | 6 AWG | 4 AWG | Medium motor, RTU |
| 100A | 3 AWG | 1 AWG | Large motor, sub-panel |
| 200A | 250 kcmil | 300 kcmil | MDP, large HVAC |
| 400A | 500 kcmil | 600 kcmil | Main distribution |