Emerson 208V, 10-30kVA installation manual Installation Drawings, From, Conductors

Installation Drawings

Figure 38 Lineup detail—1+N Type A connection to NX

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 UPS modules

4.The interconnecting output cables between the paralleling cabinet and the UPSes must be the same size and the same length.

5.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

6.Refer to the individual drawing of each piece of equipment for additional details.

Table 20 Interconnect wiring—1+N Type A connection to NX

RUN	FROM	TO	CONDUCTORS
A1-A4	Utility AC Source	UPS #1-UPS #4 Module AC Input	Ph A, B, C - UPS Input
B1-B4	Utility AC Source	UPS #1-UPS #4 Module AC Input	Neutral - UPS Input
C1-C4	UPS #1-UPS #4 Module AC Output	Paralleling Cabinet	Ph A, B, C- UPS Output
D1-D4	UPS #1-UPS #4 Module AC Output	Paralleling Cabinet	Neutral - UPS Output
E1-E4	Paralleling Cabinet	UPS #1-UPS #4 Module AC Ground	Ground-UPS
F	Paralleling Cabinet	Load AC Connection	Ph A, B, C - Load
G	Paralleling Cabinet	Load AC Connection	Ground-Load
H	Paralleling Cabinet	Load AC Connection	Neutral-Load
I1-I4	Paralleling Cabinet	UPS #1-UPS #4 Module	Output Breaker Aux Contact
		Parallel Logic Board (M3)

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