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Operation
73
Figure 49 Single module block diagram—Dual input configuration with three-breaker Liebert BDC
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. A full
capacity neutral conductor is recommended. Grounding
conductors are recommended.
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 54-pole, 225A for 45kVA frame only or optional 54-pole,
400A for 90kVA frame only.
7. Customer must supply shunt trip breaker with 120V coil.
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection
by others
Field-Supplied Wiring
UAM01023
Rev. 3
Bypass Distribution Cabinet
* Bypass
AC Input
4-Wire + GND
* Rectifier
AC Input
4-Wire + GND
See Note 7
BIB
MBB
MIB
Static Bypass
UPS Cabinet
Battery
Optional
54-Pole
See Note 6
AC Output
208V
4-Wire + GND