Disjuntores (dimensão)
- Created by
- Renato Passos, Eng. de Software
- Reviewed by
- Renato Passos, Eng. de Software
Last updated: Apr 18, 2026
Formula
QDC
About this calculator
The Distribution Board Calculator helps determine the need for circuit breakers in an electrical installation. Based on the QDC formula, this tool calculates the number of circuits a circuit breaker can support.
To do this, simply enter the total power to be distributed and the calculator will take care of the rest. This is especially useful in construction projects where it's necessary to dimension the electrical installation efficiently.
Remember to consider common precautions when dimensioning the electrical installation, such as overloading and heating of components. This will help ensure that the installation is both safe and efficient.
If you need to calculate the number of circuit breakers for a specific installation, this is the tool you need.
Frequently asked questions
What is the QDC formula?
The QDC formula is used to calculate the number of circuits a circuit breaker can support, based on the total power to be distributed.
When should I use this calculator?
This calculator is useful in construction projects where it's necessary to dimension the electrical installation efficiently.
What should I consider when dimensioning the electrical installation?
Remember to consider common precautions, such as overloading and heating of components.
Why is it important to dimension the electrical installation correctly?
Dimensioning the electrical installation correctly helps to ensure that the installation is both safe and efficient.