Vertiv
|
Liebert
®
EXM
™
BDC User Manual | Rev. 3 | 01/18 |
33
Figure 27
One-line diagram, 208V dual input 10-100kVA UPS with three-breaker Liebert EXM BDC and two subfeed breakers
Notes
1. Install in accordance with national and local electrical codes.
2. Input and bypass must share the same single source.
3. A neutral is required from the system AC input source.
Vertiv recommends a full capacity neutral conductor and
grounding conductors.
4. Bypass and rectifier inputs and output cables
must be run in separate conduits.
5. Control wiring must be run in separate conduits.
6. Optional (2) 225A LDB for 60-100kVA frame only.
7. Customer must supply shunt trip breaker with 120V coil.
8. Remove bypass jumper busbars inside the UPS to configure
a dual input system.
MBB
MIB
BIB
LDB
LDB
BYPASS DISTRIBUTION CABINET
STATIC BYPASS
UPS CABINET
BATTERY
LDB - Load Distribution Breaker
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection By Others
AC Output
208V
4 Wire + GND
* Rectifier
AC Input
4 Wire + GND
See Note 7
(Optional)
(2) LDB
See Note 6
* Bypass
AC Input
4 Wire + GND
Field-Supplied Wiring
EXM11008
Rev. 0
See Tables 12 and13 for
details.
