EV charger installation at home (plug/sockets), Cost of Installation
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 Jul 9 2023, 10:48 AM
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#1
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4,954 posts Joined: Jul 2010  
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QUOTE(KingArthurVI @ Jul 9 2023, 10:41 AM) Bro don’t mind me asking but your house single or 3 phase? So many houses single phase only but I think 22kW requires 3 phase I think it depends on your peak usage ampere. Single phase should be using 40A circuit breaker from what I observed. |
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Jul 9 2023, 11:32 AM
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#2
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Senior Member
4,954 posts Joined: Jul 2010
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QUOTE(Kytz @ Jul 9 2023, 11:00 AM) 22kw in single phase is more than 110A, only 3 phase 40A circuit breaker can support 22kw. You are absolutely right. 22000kW/230V is almost 100A dy.Anyways regardless of 7kw or 22kw, the moment you install EV charger I think it's best to consider upgrading to 3 phase for the supply. 7kw in single phase is already more than 35A, that's leaves a measly 25A for your house A/C, water heater, fridge, etc. Which is definitely not enough for a landed house. |
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