Home Automation

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Home automation is the residential extension of building automation.

It is automation of the home, housework or household activity.

Home automation may include centralized control of lighting, HVAC (heating, ventilation and air conditioning), appliances, security locks of gates and doors and other systems, to provide improved convenience, comfort, energy efficiency and security.

Warning: Working with electricity can result in injury, property damage, or even death if it is not done properly. Please keep this in mind while assisting others. If you are not sure about what you are doing, hire a licensed professional.

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How to automate double pole knife switch (alien.top)

submitted 11 months ago by Jmang83@alien.top to c/homeautomation@selfhosted.forum

6 comments fedilink hide all child comments

I'm using this so I can switch between two breakers. 2 inputs and 1 output.

The reason why I am doing this is because I have 2 solar systems and battery. One for each breaker panel.

The output is going to a electric car. So instead of me running a long electrical conduit to my car, I am using the existing electrical wire and switching the input between the breakers.

I have been looking at other past post and people are suggesting a smart pool timers but it only seems to be turning disconnecting and connecting one input only.

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[–] Shelbycsx68@alien.top 1 points 11 months ago

Double contactor that's interlocked both electrically and mechanically. Both outputs to the load in parallel to the load.

[–] ForeverWinter@alien.top 1 points 11 months ago (1 children)

What you're looking for is an "automatic transfer switch."

[–] TheIlluminate1992@alien.top 1 points 11 months ago

Be cheaper to make one with semi or full industrial relays.

[–] bitee1@alien.top 1 points 11 months ago

You might also look at SSRs just to know.

[–] user3872465@alien.top 1 points 11 months ago

The Keyword here is ATS or Automatic Transfer Switch.

Those usually get used in the Datacenter where you switch between Generator Power to Powergrid and back.

They are available in different sizes. Small ones from APC that can do 230v at 20A Or bigger contraptions which take a moment to switch over to not have both inputs on the output (and connected together)

[–] Jmang83@alien.top 1 points 10 months ago

Thanks all I found what I was looking for. The link above is exactly what I needed to help me automatically move the source of the input between my breakers.