Vertiv Liebert EXM - 2.6 Auxiliary Cabinets

Vertiv™ | Liebert® EXM
™
50-250kVA, 480V, 60Hz User Manual | 16
2.6 Auxiliary Cabinets
The Liebert
®
EXM
™
frame consists of a single cabinet housing the UPS components. It does not
accommodate internal batteries. The UPS requires external battery cabinets for extended run
time.
Battery Cabinets—Optional battery cabinets are available for each Liebert
®
EXM
™
model to
provide extended run time. The battery cabinets are designed to be bolted to the left side of the
UPS (see Figure 4). Refer to SL-25656, the Liebert
®
EXM
™
Battery Cabinet manual, for details.
Battery cabinet wiring is specified for optimal performance of the system.
Maintenance Bypass Cabinet—Optional Liebert
®
bypass cabinets are available. These cabinets
house the components necessary to provide an external wraparound maintenance bypass switch
for servicing the UPS. Liebert
®
bypass cabinets are designed to be bolted to the right side of the
UPS (see Figure 4). Refer to SL-26103, the Liebert
®
EXM
™
Maintenance Bypass Cabinet manual
for further details.
System Composition
A UPS system can comprise a number of optional equipment cabinets, depending on the system
design requirements—e.g., UPS cabinet, External Battery Cabinet and External Bypass Cabinet.
All cabinets used will be the same height and will be designed to be positioned side-by-side to
form an aesthetically appealing equipment suite.
Figure 4 Cabinet arrangement
Liebert
EXM
Maintenance
Bypass
Cabinet
Maintenance
Bypass
Cabinet
Liebert
EXM
Battery
Cabinet
Battery
Cabinet
Liebert
®
EXM
™
connected only
to Liebert
®
MBC
™
(The Liebert
®
MBC
™
must be on right side
of the Liebert
®
EXM
™
)
Liebert
®
EXM
™
connected to Liebert
®
MBC
™
and Battery Cabinets
(The Liebert
®
MBC
™
must be on right side of the Liebert® EXM™)
(Battery Cabinets must be on the left side of the Liebert
®
EXM
™
)
ALL UNITS VIEWED FROM ABOVE
Liebert
®
EXM
™
connected to Battery
Cabinet (Battery Cabinets must be on the
left side of the Liebert
®
EXM
™
)
Layouts shown are typical.
Not all auxiliary cabinets are
shown. Refer to the submittal
drawings for the exact
configuration of your system.
Liebert
EXM
Battery
Cabinet
®
™
®
™
®
™