Reclosing transmission mechanism and molded case circuit breaker

The invention relates to a reclosing transmission mechanism and a molded case circuit breaker. The reclosing transmission mechanism comprises a fixing plate, a connecting rod, a gear set and a motor;the connecting rod is slidably arranged on the fixing plate, one end of the connecting rod is in linkage fit with an operating mechanism of the molded case circuit breaker, and one side of the connecting rod is provided with a rack; the gear set is arranged on one side of the rack, can be in meshing fit with the rack during rotation and comprises a driving gear and a driven gear which are attachedto each other; at least one kidney-shaped hole is formed in the driven gear; the driving gear is provided with a positioning rod, the positioning rod is in sliding fit with the kidney-shaped hole, the driving gear and the driven gear are incomplete gears, and teeth of the driven gear have a first state of being overlapped with the teeth of the driving gear and a second state of extending to serveas supplementary teeth of