2 module enclosure

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sunupuci

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Ramona
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Electrical Contractor
Hello ✊
I am not sure if this is acceptable? If I am using a 2 module enclosure for 2 MCBs both fed from a MCB in the main consumer unit. Would I have to use a busbar inside the 2 module enclosure or would it be ok to have a cable link at the bottom of the MCBs. I have heard people say this is a nono inside a C/U, but my thinking in this example is that as long as the cable is rated high enough for the MCB from to C/U then there shouldn't be a problem as overcurrent protection is provided by the MCB feeding the 2 MCBs
Thanks Marcus
 
Ramona, as in the city in Southern California? But your use of the term "consumer unit" implies somewhere overseas, such as the UK, NZ or Austrailia and "2 module enclosure" doesn't mean anything specific here in the US. In addition, acronyms, although good for cutting down on typing, can end up problematic when there are multiple possible meanings. "MCB" is one of those. Could mean "Main Circuit Breaker" to us here in North America, could be "Miniature Circuit Breaker" to someone overseas. Please clarify.
 
This is an article from the UK with a short description of the acronyms that I think the OP is using.

What is a Consumer Unit? Busbar, Neutral, Earth, Main Switch, RCD, RCBO, MCB

What is a Consumer Unit? This article explains the anatomy of a fuseboard - Busbar, Neutral, Earth, Main Switch, RCD, RCBO, MCB - in layman's terms.
www.consumerunitworld.co.uk www.consumerunitworld.co.uk

What electrical code is applicable in your location? The IEC or something else?
 
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