1
5
8
3
6
10
2
9
4
7
11
12
13
12V, 20 Batteries
12V, 20 Batteries
B+
N
B-
B+
B-
N
UPS
External Battery Cabinet
B Cabinet: 26AH per Battery - 125A Fuses
C Cabinet: 40AH per Battery - 160A Fuses
10 Year Cabinet: 55AH, 78AH, 103AH, 140AH-250A CB
AC/DC
MAIN INPUT
Q1
Q2
Q3
Q4
OUTPUT
DC/AC
XFMR
XFMR
13
6 – Wiring
(continued)
6-4 External Battery Cabinet Wiring Diagrams
(continued)
6-5 Electrical and Cable Data
Input and Output
Input and Output
Battery Circuit
Battery
Model
Input/Output
Breaker Size
Cable Size
Breaker/Fuse Size
Cable Size
SU80K
120/208V AC, 3Ø,
300A
4/0 AWG
125A
1 AWG
4-wire + ground
160A
2/0 AWG
250A
2/0 AWG
