Digital Monitoring Products
XR150FC/XR550FC Series Installation Guide
12
InstallatIon
6.9
Standby Battery Selection
To choose the type and number of batteries needed for 24, 60, or 72 hours of standby power based on the Amp Hours
Required calculation from section 6.8 XR150FC/XR550FC Series Power Requirements, perform the following:
1. Select the desired standby hours required from the table below: 24, 60, or 72 hours
2. Select the desired battery size: Model 365 (12 Vdc 9 Ah), Model 366 (12 Vdc 18 Ah), Model 368 (12 Vdc
5.0 Ah), Model 369 (12 Vdc 7 Ah).
3. Select a Max. Ah Available number that is just greater than the number calculated in Amp Hours Required.
4. Install the number of batteries shown in the corresponding No. of Batteries required column.
Example
: If the Amp Hours Required calculation equals 22 Ah for 24 hours of standby time and 5.0 Ah batteries
are desired, install six (6) Model 368 (12 Vdc, 5.0 Ah) batteries.
For listed installations, batteries can be installed in a DMP Model 341, 349, 350 or 352S enclosure and all wiring shall
run through conduit. The enclosure shall be installed to the left of the XR150FC/XR550FC Series enclosure to ensure
Battery and AC wire separation.
24 hours of standby power
5.0 Ah Batteries
7 Ah Batteries
7.7 Ah Batteries
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
8
2
6
1
6
1
8
1
16
1
12
3
12
2
13
2
16
2
32
2
16
4
18
3
20
3
24
3
48
3
20
5
24
4
27
4
32
4
24
6
31
5
34
5
40
5
28
7
37
6
41
6
32
8
43
7
36
9
Note
: 48 hours is the typical battery recharge time for any of the Number of Batteries
shown in this section.
40
10
60 hours of standby power
7 Ah Batteries
7.7 Ah Batteries
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
13
2
14
2
17
2
17
1
20
3
22
3
26
3
34
2
27
4
29
4
34
4
52
3
33
5
37
5
43
5
69
4
40
6
44
6
52
6
47
7
52
7
61
7
Note
: 48 hours is the typical battery
recharge time for any of the Number
of Batteries shown in this section.
54
8
59
8
69
8
60
9
67
9
67
10
72 hours of standby power
9 Ah Batteries
18 Ah Batteries
Max. Ah
Available
No. of
Batteries
Max. Ah
Available
No. of
Batteries
16
2
16
1
25
3
33
2
33
4
50
3
42
5
67
4
50
6
59
7
Note
: 72 hours is the typical battery recharge time required for any of the Number of
Batteries shown in this section.
67
8
Note
: If the Amp Hours Required calculation is greater than any Max. Ah Available number shown on a table, then
add power supply(s) to power some system devices allowing the Amp Hours Required calculation to be
reduced. See the 710 Bus Splitter/Repeater Installation Guide (LT-0310).
