Installation Drawings
15
Figure 11 Cable routing
TOP ENTRY NOTES:
1. Cables from lower busbars must be routed and
tied to the aligning holes on the the cable landing
bar directly above (see figure below). Installation
method is to prevent cables from lower busbars
from contacting the upper busbars.
2. Cables from upper busbars can be optionally tied
also, as shown in top entry view.
3. The UPS output phase cables must be run
on the left side of cabinet, outside of the ground bus.
Output
Phase B
Neutral
Ground
Input
UPS
Output
Phases
BREAKERS REMOVED FOR CLARITY
BOTTOM ENTRY NOTES:
1. Cables from upper busbars must be routed so that
they run clear of lower busbars.
Maintenance
Isolation Breaker
(MIB) Busbar
Input
Phase A
Input
Phase C
Output
Phase A
Output
Phase C
TOP CABLE ENTRY ROUTING
BOTTOM CABLE ENTRY ROUTING
DO NOT DOUBLE-STACK LUGS (PUT
TWO LUGS ON SAME SIDE OF BUSBAR).
THIS IS TO PREVENT THE CABLES
FROM COMING INTO CONTACT WITH
OTHER BUSBARS.
CB1-3 CB1-3
Summary of Contents for Liebert NXL 250
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