The RCBO is a combined MCB/RCD that provides protection against short circuit, thermal overload, and earth leakage. It has a breaking capacity of 6 kA at 230 VAC and is designed for use in a 1P+N configuration. The RCBO has a current rating of 20 A and follows the C curve Type A standard. It has a sensitivity of 30 mA and occupies two modules in an electrical panel or distribution board.