Input Power Connections - Liebert EXM Distribution Cabinet User Manual

2.2.1 Input Power Connections

WARNING
Risk of electric shock and arc flash. Can cause injury and death.
Verify that all incoming line voltage (power) and low-voltage (control) circuits are
de-energized and locked out before installing cables or making connections, whether in
the junction box or in the Liebert EXM Distribution Cabinet.
The 3-phase power input to the Liebert EXM
Liebert EXM UPS.
The input feeder circuit should be sized in accordance with the NEC and any local building codes
to ensure the feeder's ability to safely carry the system's full load current, including losses.
Typical conductor size data is shown in Table 5. All connections must comply with the NEC and
all other applicable codes.
The main input feeder should consist of 3-phase conductors and one (safety) ground conductor
(3W + G).
Stand-alone distribution cabinets have an input circuit breaker; attached distribution cabinets do
not have an input circuit breaker.
Vertiv | Liebert Distribution Cabinet
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Distribution Cabinet
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