Figure 44 Lineup Detail-1+N Type D Connection To Nx; Table 26 Interconnect Wiring-1+N Type D Connection To Nx - Emerson Liebert NX 10-30kVA Installation Manual

Figure 44 Lineup detail—1+N Type D connection to NX
1 + N Cabinet Side View
(without side panel or door)
UPS Module Left Side View
(without side panel)
Table 26 Interconnect wiring—1+N Type D connection to NX
Run
A
B
C
D1-D4
E1-E4
F1-F4 UPS #1-UPS #4 Module AC Output
G1-G4 UPS #1-UPS #4 Module AC Output
H1-H4
I
J
K
L1-L4
M1-M4
1 + N Parallel Cabinet
(front view without front door and panel)
1. All Liebert-supplied cable must be repositioned prior to and while
setting the cabinets in their installed location.
2. All interconnection cables and hardware supplied by others.
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to the UPS modules.
4. The interconnecting input cables between the paralleling cabinet and
the UPSes must be the same size and the same length.
5. The interconnecting output cables between the paralleling cabinet and
the UPSes must be the same size and the same length
6. The location of the system output neutral busbar (connection K) and the
ground busbar (connections H, I and J) are shown for a left-access style.
For right-access version, these busbars are at opposite locations.
7. Refer to the individual drawing of each piece of equipment for additional
details.
From
Utility AC Source
Utility AC Source
Utility AC Source
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
(neutral and ground busbar location)
To
Paralleling Cabinet
Paralleling Cabinet
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
UPS #1-UPS #4 Module AC Input
Paralleling Cabinet
Paralleling Cabinet
UPS #1-UPS #4 Module AC Ground
Load AC Connection
Load AC Connection
Load AC Connection
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
57
Installation Drawings
1 + N Cabinet Interior View
Conductors
Ph A, B, C - System Input
Ground - System Input
Neutral - System Input
Ph A, B, C - UPS Input
Neutral - UPS Input
Ph A, B, C - UPS Output
Neutral - UPS Output
Ground - UPS
Ph A, B, C - Load
Ground - Load
Neutral -L oad
Output Breaker Aux Contact
Rotary Switch Aux Contact