In this category you will find a wide choice of thermal magnetic circuit breakers ( circuit breakers) Siemens 4-modules, respectively, with the sizes of: 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A, curve C, and a power outage that varies from 6 KA to 25 KA DIN universal suitable for each type of switchboard of each brand, 4-pole.