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Battery Calculations
Regulated Load in Alarm
TABLE A-3:
Device Type
Main Circuit Board
LED-10IM
LED-10 Annunciator
Misc. Annunciators
PRT-24
CAC-10F
NAC-REM
4-wire Smoke Detector
4-wire Smoke Detector
Power Supervision Relay
Notification Appliances
Notification Appliances
Current Draw from TB2
(alarm current)
Sum Column for Alarm Load
1. The current shown represents one zone on the Main Circuit Board in alarm. For all ten zones in alarm,
the current draw increases to 0.590 amps with communicator off and 0.610 amps with communicator on.
2. The current shown represents all ten zones in alarm. One zone in alarm will draw 0.028 amps.
3. Current limitations of terminals:
TB2, Terminals 1 and 2 = 0.500 amps, regulated filtered, 24 VDC +/-5%, 120 Hz ripple @
10 mV
, nonresettable power (100 Hz ripple if MS-5210UDE)
RMS
TB2, Terminals 3 and 4 = 0.500 amps, regulated filtered, 24 VDC +/-5%, 120 Hz ripple @
10 mV
, resettable power (100 Hz ripple if MS-5210UDE)
RMS
4. Must use compatible listed Power Supervision Relay
5. Current limitation of Terminal TB4 circuits is 3.0 amps per Notification Appliance Circuit
6. Current limitations of NAC-REM module circuits is 1.5 amps per Notification Appliance Circuit.
7. Total current draw listed above cannot exceed:
• 3.6 amps with standard transformer installed (only)
• 6.6 amp with both the standard and optional transformers installed
@24 VDC
.
# of
Devices
1
X
(1 max.)
X
[
]
X
[
]
X
(1 max.)
X
(1 max.)
X
(1 max.)
X
3
[
]
X
[
]
X
4
[
]
X
5
[
]
X
6
[
]
x
3
7
Document #50193
Rev. E
Current
Total Current
(amps)
0.245
=
0.017
=
2
=
0.040
[
]
=
0
=
0.020
=
0.075
=
[
]
=
[
]
=
0.025
=
[
]
=
[
]
=
=
=
01/30/02
P/N 50193:E
(amps)
1
0.245
0
amps
93
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