Convert total load in watts to ampere and get a suggested MCB size for single phase or three phase supply.
Doing the arithmetic by hand takes time and invites small mistakes. Electrical Load, Ampere & MCB Size Calculator takes total load, supply, and power factor and gives an instant result you can recalculate with different values.
Enter the total load in watts, choose the supply and power factor and click Current aur MCB Nikalein.
Single phase: watt ÷ (230 × power factor). Three phase: watt ÷ (√3 × 415 × power factor).
A safety margin so the MCB does not trip on normal load.
No, wire size and protection must be decided by a licensed electrician.
6, 10, 16, 20, 25, 32, 40, 50, 63 A and so on.
Convert total load in watts to ampere and get a suggested MCB size for single phase or three phase supply. Electrical Load, Ampere & MCB Size Calculator replaces manual arithmetic with an instant, repeatable answer, lets you change one value and see the effect straight away, and reduces the chance of small mistakes in long calculations.
Enter total load, supply, and power factor, then adjust the options so they match what you need, then click “Current aur MCB Nikalein”, and finally read the result and try other numbers to compare.
A quote arrives from a supplier and Electrical Load, Ampere & MCB Size Calculator helps you check whether the figures add up.
The answer is only as good as the numbers you enter, so double-check units and decimals. Use the result as a guide and confirm important figures with an official or professional source.
Electrical Load, Ampere & MCB Size Calculator works inside your browser, so what you type or select here is not sent to our server for processing.
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