Planning & estimates / FORMULA-BASED TOOL
Connected load calculator
Add the electrical input power of equipment groups in watts and kilowatts.
02The working, shownΣW
ΣW
Every result has a reason.
Enter your values and calculate to see the result, formula and working here.
Connected power = Σ (input watts × quantity)Within this model
Sum of the real electrical input powers you enter. Use the same operating basis for each item. No diversity, simultaneity, starting-current, supply-capacity or protective-device calculation is included.
What the numbers mean.
Group identical items together, multiply each input wattage by its quantity, then add the groups. Connected load is distinct from maximum demand. Use electrical input ratings rather than mechanical output power.
A worked example
Five 100 W items plus another five 100 W items have a combined connected input power of 1,000 W, or 1 kW.
Validation, precision and limitations