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6 – Internal Battery Connection (Model SU40K Only)
DANGER! LETHAL HIGH VOLTAGE HAZARD!
Potentially lethal high voltage exists within the batteries, even when not connected to a UPS system. Battery connection
should be performed by qualifi ed service personnel only, following all the precautions listed in this manual and adhering to
local electrical codes. Read
Section 2 – Important Safety Instructions before proceeding.
Internal battery connection is for model SU40K only. Each internal battery pack consists of two strings of batteries: one string with a black cable
and one string with a red cable.
6-1 Internal Battery Wiring Diagrams
Review the internal battery wiring diagrams prior to connecting the internal batteries. The UPS system can accept up to four internal battery packs
(each pack consists of two strings; each string consists of 10 batteries).
AC/DCMAIN INPUT
Q1Q2
Q3
Q4
OUTPUTDC/AC
12V, 20PCS 12V, 20PCS
B+ N B-
B+
B-
N
UPS
12V, 20PCS 12V, 20PCS
XFMR XFMR
SU40K shown
SU40K shown
VBoard
W1: RED, W2: BLUE, W3: WHITE, W4: BLACK
12V, 9AH, 10PCS
12V, 9AH, 10PCS
12V, 9AH, 10PCS
12V, 9AH, 10PCS
RED RED
RED RED
BLACK BLACK
BLACK BLACK
RED RED
RED RED
BLACK BLACK
BLACK BLACK
B+
W1
W1
W1
W1
W2
W2
W2
W2
12V, 9AH, 10PCS
12V, 9AH, 10PCS
12V, 9AH, 10PCS
12V, 9AH, 10PCS
W4
W4
W4
W4
W3
W3
W3
W3
B-
N
VBoard