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RCBO In Distribution Board or Isolator With RCD?

Nano Brewery
I'm trying to decide which would be the most suitable and sensible option? 


I have a Control Board that will be switching 4x 3-Phase Immersion Elements.

9kW

9kW

6kW

3kW


Control Board has Rail Mount Fuse Holders & Contactors installed for each circuit.


My question is would it be better to have a suitably rated RCBO installed in the Distribution Board which will be feeding the Control Board or should I go with downstream Isolators with RCD's?  I'm leaning towards the later as I would have separate RCD protection on each circuit.


Look forward to your feedback.  Cheers, Dan.

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  • 0
    As Andy said.

    Get someone who has the required skill, qualifications and experience to design, install, test & inspect. They might well be favourable to you doing a lot of the donkey work under their supervision and therefore you`d save a shilling or two in the process.
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  • 0
    As Andy said.

    Get someone who has the required skill, qualifications and experience to design, install, test & inspect. They might well be favourable to you doing a lot of the donkey work under their supervision and therefore you`d save a shilling or two in the process.
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