Figure 1 : One short circuit protection by relay
The operation starts by pressing the switch SW2, the circuit will supply power, the green LED will turn on and if an overload occurs The protection circuit will cut off the power immediately, the red LED will turn on
1.RELAY 12V
2.R1-R2 1K 1/4W
3.LED1 Red ,LED2 Green
4.SW2 Micro Switch