Residual Current Circuit Breaker provide the function of isolation switching and earth leakage protection of electrical circuits. And also provide the indirect protection of the electric current and provide the protection of the fire caused by the electrical circuit fault.
NO, they do not offer protection against current overloads.
The primary objective of an RCCB device is to cut-off main AC and safeguard people from an electric shock. An RCCB will trigger and trip instantly, when it detects some current passing through an individual's body due to the body coming in contact with the mains AC line.
Sep 15, 2026
Meet FUTINA at the 140th Canton Fair!