Square D QO320L100GNYC Load Center Main Breaker, 100 A, 20-Circuit, 3-Phase

Detailed Description: Square D by Schneider Electric load center main breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current from an overload or short circuit. It is a device that interrupts the abnormal or fault current. It is a mechanical device that disturbs the flow of high magnitude (fault) current.