MGE UPS Systems Comet EXtreme Series Installation And User Manual page 22

Comet EXtreme 4.5/6/9/12 kVA
Figure 2-4: 4.5/6/9/12 kVA Configuration Terminal Block Layout. (Floor Mount)
page 2 — 4
WARNING
Always connect the earth ground wire first!
WARNING
Before making connections to the UPS, check that the
battery and AC power circuit breakers are in OFF position.
Connections