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Do-It-Yourself (DIY) Question & Answer Forum
RCBO Ratings
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<blockquote data-quote="binky" data-source="post: 522848" data-attributes="member: 490"><p>ideally we would get rid of the 300mA and 100mA RCDs in favour of replacing the 32 and 40A MCBs with RCBOs, however, I don't work much with TT systems and I'm not sure if we have to have RCD protection on the sub-main between the main board and distribution board. I believe we would still need a type S time delay RCD for the sub main, but I believe we can get rid of he 300mA regardless, hopefully someone will correct me on that shortly.</p></blockquote><p></p>
[QUOTE="binky, post: 522848, member: 490"] ideally we would get rid of the 300mA and 100mA RCDs in favour of replacing the 32 and 40A MCBs with RCBOs, however, I don't work much with TT systems and I'm not sure if we have to have RCD protection on the sub-main between the main board and distribution board. I believe we would still need a type S time delay RCD for the sub main, but I believe we can get rid of he 300mA regardless, hopefully someone will correct me on that shortly. [/QUOTE]
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