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110 AC DPDT latch relay

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tubejim101:
Have a solar panel running to a batter.  Have an inverter for the battery.
So I would like to tape into one of my house ceiling lights.
The idea would be to have a microcontroller check the battery.
If their is enough "juice" in the battery, run the light off the battery.
If not, then run the light off the city/house power.

Can anyone recommend some kind of latching AC relay that I can control with my microcontroller?
Hopefully, one that does not cost to much.

IanB:
You shouldn't mess with mains wiring unless you are an electrician, or unless you really know what you are doing.

Unfortunately, asking this question means you don't really know what you are doing. Best to stay way from the mains. Use a separate lamp, like a table lamp or standard lamp, and power this solely from the inverter. Don't make any connection to the mains wiring.

tubejim101:

--- Quote from: IanB on October 08, 2011, 11:53:42 pm ---You shouldn't mess with mains wiring unless you are an electrician, or unless you really know what you are doing.

Unfortunately, asking this question means you don't really know what you are doing. Best to stay way from the mains. Use a separate lamp, like a table lamp or standard lamp, and power this solely from the inverter. Don't make any connection to the mains wiring.

--- End quote ---

Here in the states we are encouraged to do our own work.  We have many warehouse like stores that you can buy everything you need to do the house wiring.  They will assist you with any questions and even have classes you can take in the stores.  Only thing, is it is "old school" for the most part.  Most house electricians don't know what a microcontroller is.

IanB:
Do you have a Fry's near you? Last time I was in there they had a whole range of solar panels, charge controllers, batteries, mains switching interfaces and everything you need for a home solar power system. All properly designed with the right safety certifications and installation instructions. Take a look there.

Zero999:

--- Quote from: tubejim101 on October 09, 2011, 12:21:00 am ---  Most house electricians don't know what a microcontroller is.
--- End quote ---
Because they don't need to know what a microcontroller does, the same as a digital designer doesn't need to know about wiring regulation.

Would you be able to work out the fault circuit current of your mains supply or work out the derating factor for PVC cables buried under thermal insulation? Are you aware of the requirements for connecting an inverter to the grid in your country?

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