Specifications

Before You Begin Installing
150972 3-7
3.6.2 Current Draw Worksheet
Use the worksheet beginning on the next page to determine current requirements during
alarm/battery standby operation. (Copy the page if additional space is required.)
* If you are using door holders, you do not need to consider door holder current for alarm/battery standby,
because power is removed during that time. However, during normal operation, door holders draw current
and must be included in the 5.0 A total current that can be drawn from the panel.
** Use next size battery with capacity greater than required.
Table 3-2: Current Draw Calculations
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.
IntelliKnight 5820 Fire Panel
(Current draw from battery)
1
Standby: 140 mA 140 mA
Alarm: 260 mA 260 mA
Addressable Devices (381 max.)
Standby: 0.55 mA mA
Alarm: 0.55 mA mA
5815 SLC Expander (2 max.)
Standby: 55 mA mA
Alarm: 55 mA mA
5860 Remote Fire Alarm
Annunciator
(8 max.)
Standby: 20 mA mA
Alarm: 25 mA mA
5824 Serial / Parallel Module (2 max.)
Standby: 45 mA mA
Alarm: 45 mA mA
5895 IntelliKnight Power
Expander
(8 max.)
Standby: 10 mA mA
Alarm: 10 mA mA
5865-4 LED Annunciator
(with reset and silence switches)
(8 max.)
Standby: 35 mA mA
Alarm: 145 mA mA
5865-3 LED Annunciator
Standby: 35 mA mA
Alarm: 145 mA mA
5880 Generic LED Driver Module
Standby: 35 mA mA
Alarm: 200 mA mA
A
Total 5820 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
Alarm/Standby: mA mA mA
B
Auxiliary Devices Current
Alarm: mA
mA
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
I Multiply lines E and H.
Total alarm AH
AH
J **Add lines G and I.
Total ampere hours required
AH