Symmetra PX 40K UPS Input Circuit Breaker Rating Application Note

This application note specifies permitted input circuit breaker (OCPD) rating deviations for the APC Symmetra PX 40K scalable UPS frame when used with a 208Y/120V, 60 Hz utility source. It provides guidance for installations with limited power availability or specific power module configurations, including tables for capacity and N+1 system setups, and notes that 175A is the maximum allowed OCPD rating per UL listing.