Automatic switch

Automatic switch, also known as automatic air switch. When severe overload, short circuit, and voltage loss occur in the circuit, it can automatically cut off the faulty circuit, effectively protecting the electrical equipment connected in series behind them. Under normal circumstances, the automatic switch can also infrequently connect and disconnect the circuit and control the direct starting of the motor. Therefore, automatic switches are commonly used breaking and closing devices with protective links in low-voltage circuits.