Question on PX100 ISX PDU 480:208 with MBS

[karbonphiber_apc]

On the online specs for the APC 100kW Modular Power Distribution Unit, Isolation Transformer, 480:208V, 72 Poles, MBP, 1 Subfeed (part no. PDPM100G6F-M) it states that:
Maximum Line Current per phase: 159A
Maximum Input Current per phase: 146A

and then on the single line diagram it states that the nominal current is 165A

link to specs: http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=PDPM100G6F-M
link to SLD (page 3 for fpds): http://www.apcmedia.com/salestools/KCHY-85VEFD_R2_EN.pdf

Can someone explain what the difference is between all 3 of these terms?

[upsguy_apc · Accepted solution]

I suspect its some bad technical editing. I'd just ensure your MIB is 175A and you should be fine.