Schneider Electric's Square D 5-70-12 molded case circuit breaker is a 400 A, 600 V main MCCB in an F-size, 5-frame configuration. It is designed to serve as the main overcurrent protection device in bucket-type MCCB installations, interrupting fault currents to protect electrical distribution equipment. The model 5-70-12 identifies this specific unit within Schneider Electric's MCCB lineup.
