Secutron MR-2300T

102
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.
Ò Using the Mircom MPD-65P 2-wire photoelectric smoke detector. See Device Compatibility Guide LT1007SEC.
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 MR-2300 LED Series. Indicating Circuits must not to exceed 5
Amperes.
Battery Selection: Multiply (C) by 1.25 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 To t al
Alarm
MR-2312-LW
Fire Alarm
Control Panel, 12 Det,
FIXED ELR/ACTIVE ELR
X 0.164/0.104 = 0.424/0.364 =
MR-2312-LDW/
MR-2312-LDR
Fire Alarm Control Panel, 12 Det
with UDACT
FIXED ELR/ACTIVE ELR
X 0.164/0.104
= 0.424/0.364 =
MR-2308-LW
Fire Alarm
Control Panel, 8 Det
FIXED ELR/ACTIVE ELR
X 0.136/0.096
= 0.366/0.326 =
MR-2308-LDW
Fire Alarm Control Panel, 8 Det
with UDACT
FIXED ELR/ACTIVE ELR
X 0.136/0.096
=0.366/0.326 =
MR-2300-A
Det Class A Converter Adder
Module
X 0.000
= 0.000 =
MR-2300-NC4
Sig Class A Converter Adder
Module--4 Circuits
X 0.000
= 0.000 =
MR-2300-NC2
Sig Class A Converter Adder
Module--2 Circuits
X 0.000
= 0.000 =
MR-2300-PR
Polarity Reversal and City Tie
Module
X 0.050
= 0.300 =
MR-2312-R12/
MR-2306-R6
12 Relay or 6 Relay Adder
Module
X 0.000
= 0.160/0.080 =
MR-2312-SR12/
MR-2312-SW12
12 Relay Smart Relay Module X 0.030
=0.140=
MR-2300-LCDR/
MR-2300-LCDW
Smart Remote Annunciator X 0.056
=0.065=
MR-2306-ATW/MR-
2312-ATW
Remote Annunciators X 0.035
=0.090=
MR-2300T Remote Trouble Indicator X 0.035
=0.035=
Two-Wire Smoke Detectors X Ò 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)