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2.6.2
Battery Connection
The PAD-4 requires a 24V sealed lead-acid
battery set. The battery capacity can be from 7 to
18 A.H. For battery sets larger than 7 A.H., an
enclosure with System 3 rails or a separate listed
battery enclosure is required.
The following steps and diagram explain how to
connect the Siemens BT-33, 7 A.H. battery set to
the PAD-4-MB using the battery wires, P/N 600-
150217, included with the PAD-4-MB.
Make sure to connect AC power first
and then the battery.
1. Strip the insulation ¼" from the end of the red
and black battery wires.
2. Connect the red battery wire to B+, the
positive terminal of J6.
3. Connect the black battery wire to B-, the
negative terminal of J6.
4. Attach the quick disconnect end of the red
battery wire to the positive battery terminal.
5. Attach the quick disconnect end of the black
battery wire to the negative battery terminal.
6. Connect jumper wire from the positive (+)
side of battery #1 to the negative side of
battery #2.
When disconnecting the battery,
remove the quick disconnects from
the jumper wire, the black battery wire
and the red battery wire in that order.
The battery set is protected by a 10/20 amp,
32VDC replaceable AUTO-FUSE.
T
A
B
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PAD-4 Installation, Operation and Maintenance Manual
CAUTION:
MAKE SURE THAT THE QUICK
DISCONNECT END OF THE
BATTERY CABLE IS ATTACHED
TO THE CORRECT TERMINAL:
RED TO POSITIVE (+)
BLACK TO NEGATIVE (-)
Battery Installation
SERVICE
PORT
2
P2
J3
1
J6
1
J16
SEE
TABLE 2-3
FOR FUSE
RATINGS
CHARGE VOLTAGE (MAX.): 29 VDC
CHARGE CURRENT (MAX.): 1.5A
Battery Wiring to PAD-4-MB
B+
B-
Figure 2-8
DS8
PAD-4-MB
PWR
J1
J10
24V BATTERY SET
(7 TO 18.0 AH)
SUPERVISED
NON-POWER LIMITED
INPUT CURRENT (MAX.) 15.3A
12 AWG
Figure 2-9
JP7
11
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