Figure 38 One-Line Diagram, Single-Input Ups With 3-Breaker Bypass Distribution Cabinet And Panelboard - Emerson Liebert EXM User Manual

AVERTISSEMENT
!
Risque d'arc ou de décharge électrique pouvant entraîner des dommages matériels, des
blessures et même la mort.
Même lorsque le système ASC est en mode de dérivation d'entretien et hors tension, des
parties du système eXM de Liebert demeurent sous tension. L'entretien ne doit être confié
qu'à un personnel qualifié et dûment formé.
NOTICE
Risk of power loss to connected load. Can cause damage to equipment.
The load equipment is not protected from normal supply aberrations when the Liebert eXM is
operating in the maintenance bypass mode.

Figure 38 One-line diagram, single-input UPS with 3-breaker bypass distribution cabinet and panelboard

BYPASS DISTRIBUTION CABINET
* System
AC Input
BIB
3 Wire + GND
UPS
BATTERY
Notes:
1. Install in accordance with national and local electrical codes.
2. Input and bypass must share the same single source.
3. UPS system input and output cables must be run in separate conduits.
4. Control wiring must be run in separate conduits.
5. Optional 54 pole 400A distribution panel or two 225A subfeed breakers.
6. Transformer available: 208, 220, 480, 600V input.
MBB
MIB
Static Bypass
61
AC Output 208V
(Optional
Distribution) 4 Wire + GND
See Note 5
Local Grounding
Electrode
See Note 1
BIB - Bypass Isolation Breaker
MBB - Maintenance Bypass Breaker
MIB - Maintenance Isolation Breaker
* External Overcurrent Protection By Others
Field-Supplied Wiring
Operation
® ™
Liebert eXM