100
15.0
Appendix D: Power Supply and
Battery Calculations
Use the form below to determine the required secondary power supply (batteries).
*
Assume three Initiating Circuits are in alarm.
'
Use
0.084
for five minutes of alarm as a multiplier figure.
Using the Mircom MPD-65P 2-wire photoelectric smoke detector. See Device Compatibility Guide LT1007.
Total Current Requirement:
ALARM (
B
)______ Amp. (Value obtained from column
B
)
Battery Capacity Requirement:
(
[STANDBY (
A
) ______ ] X [(24 or 60 Hours) ___ ]
)
+
(
[ALARM (
B
) ______ ] X [Alarm in Hr.] _____
)
= (
C
) ______AH
Total Alarm Current:
Must be 6 Amperes or less for FA-300 Series. Indicating Circuits must not to exceed 5 Amperes.
Battery Selection:
Multiply (
C
) by 1.20 to derate battery.
IMPORTANT NOTICE
The main AC branch circuit connection for Fire Alarm Control Panel must provide a dedicated continuous power without provision of any
disconnect devices. Use #12 AWG wire with 600-volt insulation and proper over-current circuit protection that complies with the local codes. Refer
to
Appendix A
for specifications.
POWER REQUIREMENTS (ALL CURRENTS ARE IN AMPERES)
Model Number
Description
Qty
Standby
Total Standby
Alarm
Total Alarm
FA-301-12LW
Fire Alarm
Control Panel, 12 Det,
FIXED ELR/
ACTIVE ELR
X
0.164/
0.104
= 0.424/
0.364
=
FA-301-12LD(W/R)
Fire Alarm Control Panel, 12 Det
with UDACT
FIXED ELR/
ACTIVE ELR
X
0.164/
0.104
= 0.424/
0.364
=
FA-301-8LW
Fire Alarm
Control Panel, 8 Det
FIXED ELR/
ACTIVE ELR
X
0.136/
0.096
= 0.366/
0.326
=
FA-301-8LDW
Fire Alarm Control Panel, 8 Det
with UDACT
FIXED ELR/
ACTIVE ELR
X
0.136/
0.096
=
0.366/
0.326
=
ICAC-306
Det Class A Converter Adder
Module
X
0.000
= 0.000
=
OCAC-304
Sig Class A Converter Adder
Module--4 Circuits
X
0.000
= 0.000
=
OCAC-302
Sig Class A Converter Adder
Module--2 Circuits
X
0.000
= 0.000
=
PR-300
Polarity Reversal and City Tie
Module
X
0.050
= 0.300
=
RM-312/
RM-306
12 Relay or 6 Relay Adder
Module
X
0.000
= 0.160/
0.080
=
SRM-312
12 Relay Smart Relay Module
X
0.030
=
0.140
=
RAM-300LCD
Smart Remote Annunciator
X
0.056
=
0.065
=
RAM-208/
216
Remote Annunciators
X
0.035
=
0.090
=
RTI-1
Remote Trouble Indicator
X
0.035
=
0.035
=
Two-Wire Smoke Detectors
X
0.00011
=
*
0.090
= 0.090
Four-Wire Smoke Detectors
X
=
=
Signal Load (bells, horns, strobes, and etc.)
X
=
Auxiliary Power Supply for Annunciators, etc.
=
ALARM
=
Total currents (Add above currents)
STANDBY
(
A
)
(
B
)
Summary of Contents for FA-300 Series
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