Dell H950N - Manual (Page 17)

15 Installation and Startup |
Connecting the Power Cord
5 Verify that the power input to the UPS has adequate upstream overcurrent protection:
Table 1. Minimum Upstream Circuit Breaker Rating
UPS Output Power 120V 208V 230V
2700W 30A 20A 16A
6 For models with a detachable power cord.
Plug the detachable UPS power cord into the input
connector on the UPS rear panel.
7 Plug the UPS power cord into a power outlet.