White Power Efficiency Mcb Changeovers Switch is a mechanical-type device that is commonly used in commercial and industrial buildings to transfer power control in between main and auxiliary power sources to continue the power flow through the electrical circuitry. It is highly beneficial in case there is a need to repair the main power lines. The product offered by us is manufactured by using premium-quality ABS plastic that imparts high strength to weight ratio and excellent resistance against high-temperature flames.