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Installation Drawings
54
Figure 41 Lineup detail—1+N Type B1 connection to NX
Table 23 Interconnect wiring—1+N Type B1 connection to NX
Run From To Conductors
A Utility AC Source Paralleling Cabinet Ph A, B, C - System Input
B Utility AC Source Paralleling Cabinet Ground - System Input
C Utility AC Source Paralleling Cabinet Neutral -system Input
D1-D4 Paralleling Cabinet UPS #1-UPS #4 Module AC Input Ph A, B, C - UPS Input
E1-E4 Paralleling Cabinet UPS #1-UPS #4 Module AC Input Neutral - UPS Input
F1-F4 UPS #1-UPS #4 Module AC Output Paralleling Cabinet Ph A, B, C - UPS Output
G1-G4 UPS #1-UPS #4 Module AC Output Paralleling Cabinet Neutral - UPS Output
H1-H4 Paralleling Cabinet UPS #1-UPS #4 Module AC Ground Ground-UPS
I Paralleling Cabinet Load AC Connection Ph A, B, C - Load
J Paralleling Cabinet Load AC Connection Ground-load
K Paralleling Cabinet Load AC Connection Neutral-Load
L1-L4
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Output Breaker Aux Contact
M1-M4
Paralleling Cabinet
UPS #1-UPS #4 Module
UPS Parallel Logic Board (M3)
Rotary Switch Aux Contact
1 + N Parallel Cabinet
(front view without front door and panel)
1 + N Cabinet Side View
(without side panel or door)
1 + N Cabinet Interior View
(neutral and ground busbar location)
UPS Module Left Side View
(without side 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 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.