1 Connect the COM port (male * * * terminal) of the delay switch to the negative pole (-) of the power supply.
2. Connect the NO port (normally open end) of the delay switch to the place where electrical appliances or equipment need to be controlled.
3. Connect the NC port (normally closed end) of the delay switch to the other side of the local cable and connect it to the ground, so that the electrical appliance or equipment can be electrified.
4. Connect the +V port (positive pole) of the delay switch to the positive pole (+) of the power supply.
5. Connect the -GND port (negative pole) of the delay switch to the negative pole (-) of the power supply.