In this Calculator, Calculate MCB rating required in Home and Industries,. You can Add total load and Supply Voltage then calculate MCB rating. Also You can add multiple appliance and calculate MCB rating.
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MCB Rating Calculator
Estimate the recommended MCB ampere rating based on connected load
Result will appear here after calculation.
Notes:
- Calculator gives a recommended standard MCB rating. Final selection must consider inrush/start currents, cable ampacity, protection curve (B/C/D) and local regulations.
- Use motor-rated protection (D curve or motor starter) for motors — MCB alone may nuisance-trip at start.
- Consult a licensed electrician for installation and local code compliance.
