Siemens PAD-3

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2.5.2 Battery Connection
The PAD-3 requires a 24V sealed lead-acid battery set. The battery capacity can be from 7 to 15A.H. For
battery sets larger than 7A.H., an enclosure with System 3 rails or a separate battery enclosure is
required.
The following steps and diagram explain how to connect the Siemens BT-33, 7A.H. battery set.
1. Connect black wire to the negative (-) side of battery #2.
2. Connect jumper wire from the positive (+) side of battery #2 to the negative side of battery #1.
3. Connect red wire to the positive (+) side of battery #1.
Figure 2-5. Battery Wiring
BATTERY
CHARGER
1-2 ENABLED
2-3 DISABLED
1-2 CLASS B
2-3 CLASS A
J10
J4
K6
F2
F3
D14
B+
B-
N.A.C.
JUMPERS
J2
J3
J8J7
J5
1
2
3
1
2
3
1
2
3
1
2
3
1
2
3
24V BATTERY SET
(7 TO 15.0 AH)
SUPERVISED
NON-POWER LIMITED
INPUT CURRENT (MAX.) : 6.1A
CHARGE VOLTAGE (MAX.) : 27.8VDC
CHARGE CURRENT (MAX.) : 3.3A
Figure 2-4. Battery Installation