Pressure switch is a component that converts pressure into an electrical signal. Users can adjust the pressure switch according to their specific pressure design requirements to output an electrical signal when the set pressure value is reached.

The working principle of the pressure switch involves utilizing liquid pressure to open or close electrical contacts, thereby achieving the conversion between hydraulic and electrical signals. When the system pressure reaches the set value of the pressure switch, an electrical signal is output, triggering the operation of electrical components such as solenoids, motors, timers, or electromagnetic clutches. This allows for actions such as pressure relief in the oil circuit, direction switching, sequential operation of actuators, or shutting down the electric motor to stop system operation, thereby providing a safety protection function.