2 current draw worksheet for sd slc devices, 2 current draw worksheet for sd slc devices -8, Vices (table 3-3) – SilentKnight 5808 User Manual
Page 25: Ces and table 3-3 if inst
Before You Begin Installing
151274-L8
3-8
1. Total does not include isolator devices or accessory bases.
2. If 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 6.0A total current
that can be drawn from the panel.
3. Use next size battery with capacity greater than required.
4. SK-Beam-T draws a maximum of 500mA from Auxiliary power only when the test feature is used. This should be considered
when determining auxiliary power capacity but not calculated into current requirements for day to day operation.
5. The SK-Duct housing contains a vacant mount for a SK-Relay (sold separately). Current draw for the SK-Relay is calculated
by increasing the SK-Relay row of the calculation sheet by one for each SK-Relay used with a SK-Duct.
6. The FACP can only support 5 devices w/LED’s on. This current draw has been added to the panels alarm current.
3.6.1.2 Current Draw Worksheet for SD SLC Devices
Use Table 3-3 to determine current requirements during alarm/battery standby operation when SD SLC devices are
installed. (Copy the page if additional space is required.)
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.
3
Total ampere hours required
AH
Table 3-3: Current Draw worksheet for SD Devices
Device
Number 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.
5808 Fire Panel (Current draw from
battery)
1
Standby: 170 mA 170 mA
Alarm: 365 mA
365 mA
Addressable SLC Devices
SD500-AIM
(127 max.)
1
Standby/Alarm: .55 mA
5
mA
mA
SD500-MIM
mA
mA
SD500-ARM
mA
mA
SD500-PS
SD505-AHS
mA
mA
SD505-AIS
mA
mA
SD505-APS
mA
mA
SD500-ANM
(127 max.)
1
Aux. Pwr
Standby: 8 mA mA
Alarm: 60 mA
mA
SLC
Standby/Alarm: 55 mA mA
mA
Table 3-2: Current Draw Worksheet for SK Devices
Device
Number
of
Devices
Current per Device
Standby
Current
Alarm
Current