Page 5
Infinity S_Dual V_old_QSG
Version 4.0
© 2021 ABB. All rights reserved.
AC terminal connections are labeled at each position (L1, L2/N, and Gnd).
AC Terminal Block is in the AC box on the rear of the rectifier shelf
Connect AC input cord to the detachable input terminal block in the wiring box –
knock out for ¾
”
conduit or cord
grip. Strip and torque per the table. Pull on wire to verify secure connection.
AC Input
Rectifiers per feed
19”
23”
AWG max
Strip Wire (mm)
Torque In
-
lb(Nm)
AC1
-
Molex mini
-
fit SR
2
Yes
8
n/a
-
AC3
-
IEC
-
320 C19
1
Yes
Yes
12
n/a
-
AC5
-
Terminal Block
1
Yes
Yes
10
10
7 (0.75)
AC5H
-
Term Block
(23”
only)
AC6
-
Terminal Block 3
-
phase Delta
3
Yes
6
12
16 (1.75)
AC7 –
Terminal Block 3
-
phase Wye
3
Yes
6
12
16 (1.75)
Step 4 –
Connect Batteries
and DC Output to Loads
The figure to the right shows the DC
circuit of the system.
Battery connections are made direct
to the battery bus.
Connect the (+) cables of each battery
string to the Battery Return bus of the
Infinity power system. Prepare the (
-
)
cable of each battery string for
connection to the Battery HOT bus of
the Infinity power system, but do NOT
connect them at this time.
Load Connections are made using
Load Breakers in the main distribution
area.
AC1
-
Molex
AC3
-
IEC
AC5H
-
TB
23”
AC5
-
TB
19”
AC6
-
TB
19”
3
Φ
Delta
AC7
-
TB
19”
3
Φ
Wye
Note: (+) Battery Cable Connects to the Power System Return Bus!
In an Infinity power system using 48V Rectifiers, the system return
bus is (+) in polarity and the system load bus is (
-
) in polarity. The (+)
Battery String cables connect to the system RETURN bus. The (
-
)
Battery String cables connect to the power system HOT battery bus.
Step 3 –
Connect AC inputs
Connect 120/208/240VAC at rear of each rectifier
shelf.
Danger:
Turn OFF and lock
-
out tag
-
out the AC source
before making AC connections. When connecting to
AC mains, follow all local and national wiring rules.
Caution:
When routing AC ensure cables do not come
in contact with sharp or rough surfaces that may
damage insulation and cause a short circuit.
Rectifiers numbers are labeled at each AC input.
QUICK START GUIDE
