RCBO (Residual Current Breaker with Overcurrent Protection) is a compact protective device that integrates the functions of an MCB and an RCCB. It provides comprehensive protection against overload, short circuit, and earth leakage in a single unit, ensuring both equipment safety and personal protection. When abnormal current or leakage is detected, the RCBO quickly disconnects the circuit to prevent electric shock and fire hazards.

Designed for reliability and ease of installation, RCBOs are widely used in residential, commercial, and light industrial applications, especially in circuits such as lighting and socket outlets. Compared with separate MCB and RCCB devices, an RCBO saves installation space, simplifies wiring, and improves system efficiency. With high sensitivity and fast response, it is an ideal solution for modern electrical distribution systems that require enhanced safety and compact design.