Saftty Electronic Technology Co., Limited ST07 H Thermal protector

Power class: 10A Type series: ST07 Features normally closed does not reset automatically with connector cables transparent PET cap insulation Main parts 1) Insulating paper 2) Conductive housing 3) bimetal disc 4) movable contact 5) stationary silver contact 6) base 7) iron nails Construction The stationary silver contact is welded on the base, the movable contact is welded to one end of the bimetal disc, the other end is welded to the housing by iron nails. The movable contact is in close contact with the stationary silver contact under the pre-pressure of the bimetal disc, the base and the housing are isolated by insulating paper. The current first passes through the movable contacts connected to the housing and bimetal disc, and then through the stationary silver contacts on the base to form a loop. Function When the circuit works normally, the contact is in a closed state. When the rated operating temperature is reached, the bimetal disc is deformed by heat and snap rapidly, cut off the circuit. After that, the device begins to cool down. When it reaches the defined reset temperature, the bimetal disc and the spring disc snaps back into its start position, the contacts will close again, and the device starts working again.