The 2CSR252001R1105 is a resettable overcurrent protection device from ABB with a rated current of 10A, current tripping range of 30mA, two poles, voltage rating of 230VAC, DIN rail mounting and a protection rating of IP20. It is a residual current operated circuit breaker, also known as an RCBO, which combines the benefits of a residual current device (RCD) and a standard circuit breaker (MCB) into a single unit. This allows it to provide both overload and short-circuit protection, as well as protection from earth leakage, giving effective protection for people and equipment.