In this category you will find a wide range of thermal-magnetic circuit breakers (Circuit Breakers) from top brands such as Bticino, ABB, Eaton, Hager, Schneider and Siemens at discounted prices on our online price list. What is a thermal-magnetic circuit breaker? A thermal-magnetic circuit breaker is a safety device capable of interrupting the flow of electricity in an electrical circuit in the event of an overcurrent. The latter can be caused by a malfunction and we speak of overcurrent, or by a fault (when phase and neutral touch) and we speak of short circuit. In our online catalogue you will find a wide range of differential circuit breakers with sizes ranging from 6A up to 125A, with trip curves B, C and D and breaking capacities ranging from 4.5 KA up to 20 KA.