As such it is best if a refrigerator is on its own circuit.
Power on delay circuit for refrigerator.
This simple refrigerator protector circuit is actually a delay on timer circuit which makes sure that whenever a power failure occurs or in case abrupt power fluctuations take place the refrigerator is never allowed to switch on instantly rather after a delay of a few moments.
The simple delay turn on the monitor circuit.
Power on delay circuit for refrigerator.
General electrical best practices end up shaping the way a kitchen is wired for electrical power.
This safeguards your food too.
When 220 volt power input to the circuit the lower the voltage to 220 volts to 15 volts with r1 r2 c1 and c2 current limiting it to about 41 milliamps.
Refrigerator amps may vary but typically can spike around 15 amps.
Power on delay circuit for refrigerator.
The delay circuit and your one shot circuit work fine.
The alarm would need a delay when power was applied so the alarm module could be placed.
Power on delay circuit for refrigerator.
Power on delay circuit for refrigerator.
By contact of the relay switch to acting.
The alarm would need to be activated by light.
This circuit can be used with 220 volt house power.