con unit question

[bobby101]

Hi all I came across a situation which had me a little puggled and I would like a second or third etc opinion
The situation was this a merlin, con unit with a reversed busbar, ie the busbar supplied the top of the circuit breakers and where the busbar normally goes the circuits were wired into, now I am unsure if this is will still enable correct operation of the mcb,s please clarify because I am unsure many thanks

 

[SirKit Breaker]

Never considered this, and to be fair i dont know the answer, but thinking logically it works on overload/overcurrent, and i suppose the breaker wont know which way the electric is flowing through it, so my guess is it will be OK. But i will stand to corrected, so watch this space, and someone will be along shortly.

Cheers..........Howard

 

[monkeyelectric]

I can't see why that wouldnt work, square d qwikline are set up like that with a concealed busbar and plug in mcb's

 

[kingeri]

Any idea why it was done like that?

 

[telectrix]

so you can't use another manufacturers MCBs. also, the busbar is safer , same as the crabby starbreaker boards.

 

[monkeyelectric]

No access to live parts unless you have a long thin uninsulated pokey thing in you hand

 

[not clever]

Today I've put in 4x TP outlets on old MG (C45N) boards & yes all the mcb's are fitted (even the new C60N schneider ones I fitted) with the top to the busbar.

Getting hold of BCL's were a pain, ended up going direct to schneider for a handfull.