Emerson 10-30kVA Manuel D’Utilisation
Installation Drawings
55
Figure 42 Lineup detail—1+N Type C connection to NX
Table 24
Interconnect wiring—1+N Type C 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
C1-C4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Ph A ,B, C - UPS Input
D1-d4
Paralleling Cabinet
UPS #1-UPS #4 Module AC Input
Neutral - UPS Input
E1-E4
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
3. AC connections must be made to the UPS modules before attaching
paralleling cabinet to UPS modules.
4. Utility AC source neutral not required for maintenance bypass/
transformer cabinet Type C.
5. The interconnecting input cables between the paralleling cabinet and
the UPSes must be the same size and the same length.
6. The interconnecting output cables between the paralleling cabinet
and the UPSes must be the same size and the same length.
7. 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.
8. Refer to the individual drawing of each piece of equipment for
additional details.