2 current draw worksheet for ms-25c ulc, 2 current draw worksheet for ms-25c ulc -8 – Fire-Lite MS-25E Addressable Fire Control Panel User Manual
Page 28
Model MS-25 Installation and Operation Manual
3-8
53688
3.6.1.2 Current Draw Worksheet for MS-25C ULC
Use to determine amp-hour requirements during alarm/battery standby operation. (Copy the
page if additional space is required.) You can install up to 25 SLC devices and two ANN-80C
Remote Annunciator. The maximum battery size for ULC installations is 18 Amp/hr.
Table 3-3: Current Calculation Worksheet for Devices for ULC
Device
# of Devices
Current per Device
Standby
Current
Alarm
Current
For each device use this formula: This column X This column = Current per number of devices.
Fire Panel (Current draw from
battery)
1
Standby: 165 mA
165 mA
Alarm: 220 mA
220 mA
Accessory Modules
ANN-80C Remote Annunicator
2
Standby: 37 mA mA
Alarm: 40 mA
mA
Addressable SLC Detectors
HFS-PA
25 max.
Standby: 0.27 mA
Alarm: 6.5 mA
mA
mA
HFS-PTA
mA
mA
HFS-DA
mA
mA
HFS-TA
mA
mA
SD355A
mA
mA
SD355TA
mA
mA
D355PLA
mA
mA
H355A
mA
mA
Addressable SLC Modules
HFS-MMA
25 max
Standby/Alarm 0.375 mA
mA
mA
BG-12LX
Standby/Alarm 0.375 mA
HFS-MRA
Standby/Alarm 0.255mA
mA
mA
MMF-301A
Standby/Alarm 0.375 mA
CRF-300A
Standby/Alarm 0.375 mA
I300A
10 max
Standby/Alarm 0.45 mA
mA
mA
A
Total System Current
Auxiliary Devices
Refer to devices manual for current rating.
Alarm/Standby: mA
mA
mA
Alarm/Standby: mA
mA
mA
Alarm/Standby: mA
mA
mA
B
Auxiliary Devices Current
Notification Appliance Circuits
Refer to device manual for current rating.
Alarm: mA
mA
Alarm: mA
mA
Alarm: mA
mA
C
Notification Appliances Current
mA
D
Total current ratings of all devices in system (line A + line B + C)
mA
mA
E
Total current ratings converted to amperes (line D x .001):
A
A
F
Number of standby hours (24 or 60 for NFPA 72, chapter 1, 1-5.2.5):
H
G
Multiply lines E and F.
Total standby AH
AH
H
Alarm sounding period in hours. (For example, 5 minutes = .0833 hours)
H