Planning & estimates

Connected load calculator

Add the electrical input power of equipment groups in watts and kilowatts.

Your values

Example values are prefilled. Replace them with your own.

W
items
W
items
2 / 20 groups

Result

Connected load
Ready

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Enter your values and press Calculate result.
FormulaConnected 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