The 5SY4103-6 manufactured by Siemens is a one-pole, DIN-mount circuit breaker with a rated voltage of 230/400VAC and a rated current of 3A. Characteristics include: delayed-action, fast-action, and long-delay release. The circuit breaker features a single-pole, thermal-magnetic, direct-acting tripping release mechanism, with a manual test button, and is designed to protect short-circuit and overload current in accordance with IEC 60947-2. It is suitable for use in residential, commercial, and industrial applications.