Contactor arrangement for extinguishing an electric arc

A contactor, comprising:

• an insulation outer housing;
• a pair of static terminals arranged in the insulation outer housing and stationary relative to the insulation outer housing;
• a movable terminal arranged in the insulation outer housing and movable between a closed position in contact with the static terminal and an opened position separated from the static terminal;
• a first magnetic conductor fixed to the movable terminal to move synchronously with the movable terminal;
• a static bracket including a bottom plate, a side plate, and an inner cavity defined by the bottom plate and the side plate and arranged in the insulation outer housing and stationary relative to the insulation outer housing, and further comprising a connecting part connected to an upper side of the side plate and extending upwards;
• a second magnetic conductor movably arranged and accommodated in the inner cavity of the static bracket;
• and
• an elastic member compressed between the bottom plate of the static bracket and the second magnetic conductor, the second magnetic conductor and the static terminal are arranged at the same side of the movable terminal, and the second magnetic conductor is floatably or movably supported in the static bracket by the elastic member;
• and
• an insulation inner housing arranged in the insulation outer housing and having an inner space defining an arc extinguishing chamber and a hole through which the connecting part of the static bracket is inserted to fix the static bracket to the insulation inner housing, the static terminal is fixed to the insulation inner housing and extends into the arc extinguishing chamber, the static bracket is located in the arc extinguishing chamber and is fixed to the insulation inner housing.