[c-nsp] 7609 6000W-DC PWR supply cabling Question

David Coulson david at davidcoulson.net
Mon Mar 31 10:04:17 EDT 2008


William Jackson wrote:
> Which way is this setup cabled?
>
>  
>
> 1.	all 4 pairs of cables going back to a single circuit breaker of
> ( 6000/48 = 125Amp )
>   
Even if all 4 were on the same breaker, you'd distribute your current 
across all four pairs.

> I am not an electrical guy but I would have thought that the idea is
> that the breaker trips before the cable burns, so I would assume option
> 2?
>   
Each of the four pairs should return to their own dedicated breaker. 
They should, however, be all fed off the same bus. Cisco's site should 
have the install guides for the PSU somewhere.


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