And Two Subfeed Breakers - Liebert EXM BDC User Manual

Figure 24 One-line diagram, 208V single input 10-100kVA UPS with three-breaker Liebert EXM BDC and two subfeed
breakers
BYPASS DISTRIBUTION CABINET
* System
AC Input
BIB
4 Wire + GND
UPS CABINET
BATTERY
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.UPS system input 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.
Optional single 225A LDB for 10-40kVA frame.
Vertiv | Liebert
®
™
EXM BDC User Manual | Rev. 3 | 01/18 |
MBB
MIB
STATIC BYPASS
LDB
LDB
(Optional)
AC Output
(2) 225A
208V
See Note 6
4 Wire + GND
LDB - Load Distribution Breaker
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection by Others
Field-Supplied Wiring
EXM11005
Rev. 0
30