Fridge Protection

[Redge]

Hi

i would like to build a circuit to protect my fridge from running to soon after being swirched of.

So there would be a 240 V AC IN (from grid) and AC OUT (to fridge) and when the AC IN is switched off, there must be no AC OUT until about 10 minutes after it was switched off, even if the AC IN

is switched on immidiately after being switched off.The fridge has draws start up power of about 900watt and running at about 140watt.

Could you help with this?

Thank you very much

Redge

 

[HarryA1]

There are devices similar to what you want on the market. This one has 5 minute delay. Perhaps if you poke around on ebay or amazon you could find a 10 minute one.

https://www.ebay.com/itm/293677138457?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM

Else if you want to roll your own we could look at how to do.

 

[Redge]

Thank you HarryA

 

[HarryA1]

What code book? And why do you care? Unplug the refrigerator and plug it into one of these.

https://www.ebay.com/itm/293616232230?_trkparms=amclksrc%3DITM%26aid%3D1110018%26algo%3DHOMESPLICE.COMPLISTINGS%d%3APL_CLK|clp%3A2047675

 

[Scott Moris]

There are devices similar to what you want on the market. This one has 5 minute delay. Perhaps if you poke around on ebay or amazon you could find a 10 minute one.

https://www.ebay.com/itm/293677138457?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM

Else if you want to roll your own we could look at how to do.

You could use a time delay relay. This relay would be connected in series with the power supply to the fridge, and would delay the power to the fridge for a specified period of time after the power supply to the relay is switched off.

1. Begin by selecting a time delay relay that can handle the voltage and current of your fridge. For a 240V AC circuit, you could use a relay rated for at least 10A.
   
2. Connect the 240V AC IN to the input terminals of the time delay relay.
   
3. Connect the AC OUT of the time delay relay to the fridge.
   
4. Set the time delay on the relay to approximately 10 minutes (or whatever time delay you prefer). The exact process for setting the time delay will depend on the specific relay you use, but typically involves adjusting a potentiometer or dip switch.
   
5. Test the circuit to ensure that the fridge is not powered until the delay period has elapsed. If necessary, adjust the time delay on the relay until it meets your requirements.
   

Try it, hope it helps

All this will save your energy and will be helpful for sustainability.






 








 

Protecting your refrigerator and adopting good practices can contribute to energy savings and ensure the appliance operates efficiently. Here are some tips for fridge protection to save energy:

1. Proper Temperature Settings
   
2. 
   
   Regular Cleaning and Defrosting
   
3. 
   
   Proper Ventilation
   
4. 
   
   Check and Seal Door Gaskets
   

 

[Daniel Bryant]

Hi Redge,

You can build a delay timer circuit to protect your fridge. Here’s a basic outline:

1. **Power Relay**: Use a relay rated for 240V AC and at least 10A (to handle the fridge's startup current).
2. **Delay Timer**: Use an off-delay timer module, adjustable up to 10 minutes.
3. **Wiring**:
    - **AC IN to Timer**: Connect the AC input to the timer's power input.
    - **Timer to Relay**: Connect the timer's output to the relay's control input.
    - **Relay to Fridge**: Connect the relay's switch terminals between the AC input and the fridge.

**Operation**:
- When AC IN is turned off, the timer starts the delay.
- The relay will only activate and supply power to the fridge after the 10-minute delay, even if AC IN is switched back on immediately.

Ensure all components are rated for 240V and handle the required power safely. If unsure, consult an electrician for assistance.