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What is a residual current circuit breaker and how do they work?
Residual current circuit breakers are electrical protection devices used to detect and deactivate an abnormal electrical current in a circuit. They are also known as “residual current circuit breakers” or “RCD”. These devices are designed to detect and deactivate an earth leakage current, which can be dangerous to people and appliances.

A differential switch consists of a transformer and a current measuring device. The transformer measures the current difference between the active and neutral poles of a circuit. If the current difference is greater than normal, the residual current circuit breaker deactivates the circuit to prevent possible electrocution.

Residual current circuit breakers are common in residential, commercial and industrial electrical circuits and are used to protect people from earth leakage currents. They are required in some countries by electrical safety regulations and it is advisable to have them at home to avoid possible electrical accidents.
Why are they called circuit breakers?
Residual current circuit breakers are also called “automatic” because they act automatically to deactivate the circuit when an abnormal current is detected. That is, they do not require human intervention to activate, but act immediately to deactivate the circuit when an abnormal current is detected. This allows the earth leakage circuit breakers to detect and deactivate an earth leakage current quickly and efficiently, which increases electrical safety in the home or place where it is installed.
Which differential should I buy?
As specialists in electrical material, we are proud to offer you the best residual current circuit breakers on the market. We carry a wide variety of market leading brands such as Circutor, Eaton, QRB and Schneider, offering high quality and reliable products to ensure safety in your home or workplace.

Our automatic differential circuit breakers of the mentioned brands are ideal to protect people from earth leakage currents, they are easy to install and offer great accuracy in the detection of abnormal currents.

In addition, we offer competitive prices and fast shipping, so you can receive your product in the shortest possible time. Contact us today to learn more about our products and how we can help you improve safety in your home or workplace.