I cannot find a WiFi enabled change over switch. I want to be able to switch my pool pump to grid on heavy overcast days. Currently I have a manual changeover switch to do this function. What I am considering is an automatic change over switch. I want to install a smart isolator/ breaker on the supply from grid. The other supply will be from my inverter. I can then switch the isolator on remotely if it is an overcast day. This should then disconnect the inverter supply. Is this a viable solution?

Thanks 

I am no electrician so I don't know if this would get a COC. You could try a contactor with NC and NO contacts (Changeover contactor) operated by a standard wifi light switch.

Thanks for the advice. I just want to be sure I cannot mistakenly have the two supplies connected during the change over.

 

5 minutes ago, JohannesD said:

Thanks for the advice. I just want to be sure I cannot mistakenly have the two supplies connected during the change over.

 

No that is why a change over relay is used. It will break the one supply before making the other one. 

Thanks for clarifying