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Installation Drawings
73
Figure 47 Liebert
®
NX
™
480V 40-120kVA UPS to Paralleling Cabinet Interconnection—Configuration BB0,
FB0, KB0 parallel connection to Liebert NX
C1-C4
D
E1-E4
B1-B4
C1-C4
B1-B4
A
G1-G4
H1-H4
E1-E4
F
FRONT
Without Covers
FRONT
Door Open
REAR
Without Covers
G1-G4
H1-H4
Run From To Conductors
A Utility Source Parallel Cabinet
Ph A, B, C - System
Input
B1-B4 Parallel Cabinet
UPS #1-UPS #4 Module
AC Input
Ph A, B, C - UPS
Inputs
C1-C4
UPS #1-UPS #4
Module AC Output
Parallel Cabinet
Ph A, B, C -
UPS Outputs
D Parallel Cabinet Critical Loads
Ph A, B, C - System
Outputs
E1-E4 Parallel Cabinet
UPS #1-UPS #4
Module Gnd
Ground - UPS
F Parallel Cabinet Building Gnd Ground - System
G1-G4 Parallel Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic
Board (M3)
Output Breaker Aux
Contact
H1-H4 Parallel Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic
Board (M3)
UPS Bypass
Detection