A phase 3 circuit breaker (MCCB) is an essential component of electrical systems that employ DC power sources. The MCCB acts as a switch to isolate circuits in case of overloads, short circuits and faults. The three-phase DC MCCB is equipped with advanced electronics that allow for high-speed switching which improves the overall efficiency of the electrical system. https://www.religare-electric.com/products/3-phase-dc-mccb/