Energy-saving control circuit of electric operating mechanism of circuit breaker

The invention relates to a circuit breaker circuit, in particular to an energy-saving control circuit of an electric operating mechanism of a circuit breaker. The energy-saving control circuit comprises a rectifying circuit, a switching power supply module and a switching control circuit controlling on and off of the switching power supply module. The input end of the rectifying circuit is connected with the circuit breaker, the output end of the rectifying circuit is connected with the input end of the switching power supply module through the switching control circuit, and the output end of the switching power supply module is connected with an output control circuit. The switching control circuit comprises a first control element, a second control element and a third control element, and the first control element and the second control element both adopt MOS tubes. The energy-saving control circuit of the electric operating mechanism of the circuit breaker is characterized in that the third control element adopts a logic chip which is used for being connected with the cost control end controlled by the circuit breaker, and the logic chip is connected with the output end of the rectifying circuit through a low power consumption voltage stabilizing circuit; the switching control circuit is connected with the power supply control end; when the energy-saving control circuit is used for controlling on and off of the circuit breaker, a current consumed by the energy-saving control circuit itself is less.