BW9700 series are bimetallic trip-type thermal protectors and motor protectors, small size, accurate trip temperature, long service life, with a variety of wiring methods.

Widely used in: all kinds of motors, ballasts, chargers, transformers, electric water heaters, cylindrical coils, electric steam baths, office automation equipment, baby products, etc.

The current is connected to the moving contact terminal through the lead, and then the stationary contact terminal is connected to the electrical appliance (such as battery, etc.) through the lead to form a circuit; when the appliance happens to work abnormally lead to the surrounding temperature is too high, the heat is transmitted to the bimetal sheets through the shell, and when the corrective trip temperature is reached, the bimetal sheets flips over so that the electrical contactors quickly breaks off the circuit, and when the temperature drops to the reset temperature, the bimetal resets and quickly closes the electrical contact When the temperature drops to the reset level, the bimetal sheets will reset and quickly close the electrical contactors to connect the circuit, continue the cycle of action.