The 4230-T120-K0BE-1A is a double-pole thermal-magnetic miniature circuit breaker (MCB) designed for overcurrent protection in a wide range of applications. It has a current rating of 1A and features a B characteristic curve, with a thermal trip between 1.05-1.30 times the rated current and a magnetic trip between 3.2-4.8 times the rated current. This DIN rail mountable breaker is equipped with screw terminals, has a high rupture capacity of 10,000 A, and complies with IEC/EN 60947-2 and UL 1077 standards. It is suitable for protecting cables, motors, industrial process control systems, and telecommunications equipment.