OnLine Power Battery Backup System - Manual (Page 36)

OLP
Three Phase UPS Systems
3.0 INSTALATION
3-5
3.3. Cable Selection
The following tables list typical information concerning the KVA of the UPS versus
the size and rating of the cables. Inadequate cable size or over sized breakers will
incur risk of fire or damage of insulation. Therefore, please use the following tables
to determine the input circuit breaker rating and the size of cable for input, output
and battery connections. These data are for reference; final decisions should be
made in accordance with the local electrical codes.
BREAKER RATING FOR INPUT
KVA INPUT OCPD
80 480/277V 3D 125
100 480/277V 3D 150
120 480/277V 3D 200
160 480/277V 3D 250
CABLE SIZE FOR INPUT ( AWG- 3 conductors Ambient F= 85*)
KVA INPUT In(A) max F= 140* F=167*
80 480/277V 3D 100 2 2
100 480/277V 3D 120 0 1
120 480/277V 3D 160 000 00
160 480/277V 3D 200 2 x 2 2 x 2
CABLE SIZE FOR OUTPUT
KVA OUTPUT A(O) F= 140* F=167*
80 480/277V 3D 96 2 2
100 480/277V 3D 120 0 1
120 480/277V 3D 150 000 00
160 480/277V 3D 198 2 x 2 2 x 2