What is the full name for an RCBO?

The correct full name for an RCBO is "Residual Circuit Breaker with Overcurrent Protection." An RCBO is a combination device that incorporates the functions of both a Residual Current Device (RCD) and a Miniature Circuit Breaker (MCB). It not only detects an imbalance in the electrical current that could indicate a fault, providing protection against electric shocks and electrocution, but it also protects the circuit from overcurrents, whether due to overload or short circuits. This dual functionality makes it a crucial component in modern electrical systems for enhancing safety.

The other options do not accurately describe the function of an RCBO. While "Remote Control Breaker Output," "Root Cause Breaker Operative," and "Residual Current Breaker Only" may contain some relevant terms, they do not encompass the full and precise functionality represented by an RCBO, highlighting the importance of understanding the specific terminology used in electrical safety devices.