In the present scenario of three phase application, if low voltage is available in any one of the three phases and needs equipment to work in normal voltage, then the phase contacts must be changed manually. The product developed will solve the problems related to three phase applications. The main aim of this product is to provide an uninterrupted power supply for three-phase loads even in the failure of a phase in a three-phase system. The product is very useful in those industries, factories, home spaces and offices where the continuous supply of electricity is needed. Normally three phase supply if one or two-phase fails, power will not be there in the gadget connected to that particular failed phase(s), to avoid these failures, we bring intelligent three phase changer with Arduino, which shifts power from alive phase to the failed phase(s) instantaneously,thus keeps all the circuits alive.