Project Information
Service Voltage
Single dwelling service load. Results are calculated load amperes; conductor, breaker and neutral sizing are separate.
General Loads
Cooking Appliances
Enter quantity and nameplate VA; group identical appliances on the same row. The calculator automatically separates the entries into the applicable Table 220.55 Column C, Column A and Column B groups and adds their demand loads.
Electric Dryers
Each dryer uses at least 5,000 VA or its nameplate rating, whichever is larger.
Appliance Loads
Enter appliances fastened in place on this service. The calculator counts qualifying loads automatically and applies 75% demand when there are four or more. Other loads belong in the 100% row below; do not duplicate loads already included elsewhere.
HVAC Loads
Enter cooling and heating loads at 100%. If an HVAC motor is the largest applicable motor, enter its component VA once in the Motor section below.
Motors
Enter additional motors not already included above. Use the applicable motor load VA, not breaker size. The largest applicable motor receives one additional 25% across HVAC, appliances and these motors.
EV Charging Loads
EV charging uses 7,200 VA or nameplate, whichever is larger. Enter each EV charger separately. If the chargers share an energy-management system, enter the system's combined maximum load once.