SPECIFICATIONS Main Contact Kit For Contactor MC-85 MC-75 MC-65 MC-50 MC-40a Moving And Fixed Parts electrical contactor parts, contactor mc Phase: 3 Number of Pole: 3 Model Number: MC-85 MC-75 MC-65 MC-50 MC-40 Main Circuit Rating Voltage: 380V Electricity Type: AC Description grade A : the contact point contains approximately 85% silver.grade A has two different appearances,but the quality is the same.grade B : the contact point contains approximately 40% silver.The higher the silver content, the longer the service life of the product. The??frame??of??the??MC-85??and??MC-75??are??the??same??but??the??SIZE of the contact??point??of??MC-85??is??bigger??than??MC-75, the??picture??below??is??MC-85: The??frame??of??the??MC-65 MC-50 MC-40??are??the??same??but??the??SIZE??of??contact??point??are??different??the??picture??below??is??MC-65: One set includes:3 movable parts & 6 fixed parts & 6 screws Pictures??for??MC-85??MC-75: