XR2500F Installation Guide Digital Monitoring Products
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InstallatIon
11.8 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theXR2500FPowerRequirementssection,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368(12VDC4.5Ah),Model369(12VDC7Ah),
Model367(12VDC7.7Ah),Model365(12VDC9Ah),Model366(12VDC18Ah).
3.SelectaMax.AhAvailablenumberthatisjustgreaterthanthenumbercalculatedasthe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4.5Ah
 batteriesaredesired,installsix(6)Model368(12VDC,4.5Ah)batteries.
For listed installations, all batteries shall 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 XR2500F
enclosure to ensure Battery and AC wire separation.
24 hours of standby power
4.5 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
8261618116 1
12 312 2 13 216 232 2
16 418 3 20 324 3 48 3
20 5 24 4 27 432 4
24 6 31 534 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 17 217 1
20 322 3 26 3 34 2
27 429 434 4 52 3
33 537 543 569 4
40 644 652 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
16 216 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710/710FBusSplitter/RepeaterInstallationGuide(LT-0310).