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DIY
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Hello,
I have a hypothetical question (I'm an electrical engineer) to better understand RCBOs and how they are used in the USA. Let's say I would like to install RCBOs (or maybe just RCCBs) in my home to protect against residual currents. I am in the USA so my home has split-phase (two phases, neutral and ground). Here is a stock photo of a distribution panel just to ask my question:
I have a hypothetical question (I'm an electrical engineer) to better understand RCBOs and how they are used in the USA. Let's say I would like to install RCBOs (or maybe just RCCBs) in my home to protect against residual currents. I am in the USA so my home has split-phase (two phases, neutral and ground). Here is a stock photo of a distribution panel just to ask my question:
- I understand people can replace the small breakers in the middle of the picture for RCBOs (1P+1N for a 120V socket and 2P for a 240V socket). Am I correct?
- Assuming yes, then I'd have residual protection but only for that one socket or room. I'd need dozens of RCBOs to protect the whole residence. Is there a way to place an RCBO right where the phases and neutral enter the box (towards the North in the picture) before it gets distributed to all the little black breakers? This way, it would trip if ANY socket in the home has residual current to Earth?
I guess it would have to be something like a 2P+1N RCBO but all I find are 1P+1N and 2P RCBOs. Could you tell me what would work, maybe with some pictures or a datasheet? - If what I am suggesting is not done, why is that the case? It should work in theory I think.