Main and circuit breakers protect the wires in your home from overheating (referred to as an overload) and fault currents (referred to as short circuits). The Eaton Circuit Breaker is designed to create 1 circuit with 2 poles. This allows for 240-Volt circuits. This breaker has an independent trip as well as a rejection tab feature. These breakers are in load centers and should be installed only in panel positions that have notched bus stabs that accommodate the rejection clip. These are UL approved genuine replacement breakers for load centers.