18
1
5
9
3
7
11
2
6
10
4
8
12
13
14
7 – Wiring
(continued)
7-4 External Battery Cabinet Wiring Diagrams
(continued)
7-5 Electrical and Cable Data
12V, 20 Batteries
12V, 20 Batteries
B+
N
B-
B+
B-
N
UPS
External Battery Cabinet
B Cabinet: 26AH per Battery
C Cabinet: 40AH per Battery
AC/DC
MAIN INPUT
Q1
Q2
Q3
Q4
OUTPUT
DC/AC
XFMR
XFMR
Input and Output
Battery
Input and Output
Battery
Model
Input/Output
Breaker Size
Fuse Size
Cable Size
Cable Size
SU40K
120/208V AC, 3O,
150A
120A
1/0 AWG
6 AWG
4-wire + ground, wye
SU60K
120/208V AC, 3O,
225A
160A
4/0 AWG
4 AWG
4-wire + ground, wye
SU60KTV
277/480V AC, 3O,
100A
160A
4 AWG
4 AWG
4-wire + ground, wye
SU80KTV
277/480V AC, 3O,
125A
220A
2 AWG
2 AWG
4-wire + ground, wye