Contactor movable contact assembly and contactor

A contactor, comprising:

• a housing formed with an arc extinguishing chamber;
• a pair of static contacts fixed to the housing and having static contact points located in the arc extinguishing chamber;
• and
• a contactor movable contact assembly movable and arranged in the arc extinguishing chamber, including:
• an insulation seat including an auxiliary contact pushing part adapted to drive an auxiliary contact of the contactor to switch from an open state to a closed state or from the closed state to the open state;
• a drive shaft arranged below the insulation seat and fixed to the insulation seat;
• a limit bracket arranged above the insulation seat and fixed to the insulation seat;
• a movable contact installed in the limit bracket in a movable manner and movable in a vertical direction relative to the limit bracket, the movable contact is adapted to move from an open position electrically separated from the static contact to a closed position in electrical contact with the static contact under the drive of the drive shaft;
• and
• a spring installed in the limit bracket and axially compressed between the movable contact and the insulation seat.