Emerson 10-30kVA Manuel D’Utilisation

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 Ground

Ph A, B, C- UPS Input

E1-E4

Paralleling Cabinet

UPS #1-UPS #4 Module AC Ground

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

1 + N Parallel Cabinet

(front view without front door and panel)

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.