The 4230-T110-K0BU-10A is a single-pole thermal-magnetic miniature circuit breaker designed for DIN rail mounting with toggle actuation and visual status indication. It features a 10 A current rating, screw terminals with a maximum tightening torque of 1 Nm, and supports cable cross-sections up to 35 mm². The device operates across an ambient temperature range of -35°C to +70°C and provides IP20 degree of protection with overvoltage category III (Uimp 4 kV) insulation coordination. It meets IEC/EN 60947-2 and UL 1077 standards, with a typical operational life of 20,000 cycles. Common applications include protection of cables, motors, generators, transformers, and industrial control systems, offering reliable switching behavior through a positively trip-free snap action mechanism.