Load limiter circuit 2 using 555 time base integrated circuit

The second load limiter circuit using 555 time base integrated circuit     is as shown in the figure. It can control 1-10A load; when the load exceeds the set value for more than 7 seconds, the power supply will be cut off, the power supply will be stopped, and the power supply will be restored after 5 minutes, and the load will be monitored again.     It uses capacitors to step down the voltage and uses 555 time base integrated circuit A to form a monostable delay circuit. Adjust the potentiometer RPi to change the allowed startup overload time. In the figure, KP is a reed switch. If the load current is limited to 1A, the number of pull-in turns wound on the glass tube is about 15; if the limited current is 10A, the number of pull-in turns wound around it is about 2 turns.