This is an ABB 2CSR255180R2104 RCBO circuit breaker with 1+N pole (for use in a two-phase, three wire system). It has a rated current of 10A, a rated residual current of 100mA, and an operating voltage of 230VAC. It has a compact DIN rail-mounted design and an IP20 degree of protection. It is approved to applicable standards in most countries, including SEMKO, CE, UL489, CSA C22.2 and IEC/EN 61008. It features a wide range of settings and quick, easy manual trip settings.