Specifications

Before You Begin Installing
151051 3-9
3.9.3 Current Draw Worksheet
Use this worksheet to determine current requirements during alarm/battery standby operation.
(Copy this page if additional space is required.)
*Note: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 total current that can be drawn from the panel.
Table 3-6: Current Draw Calculations
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
SK-2224 Panel 1
Standby: 100 mA 100 mA
Alarm: 250 mA 250 mA
A Current Subtotals:
100 mA 250 mA
Smoke Detectors
Refer to device manual for current ratings. See Appendix to this manual for
max. # per loop.
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
B Current Subtotals:
mA mA
Notification Devices
Refer to device manual for number of devices and current ratings.
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
C Current Subtotals:
mA mA
Accessory Devices
SK-2884
Standby: 10 mA mA
Alarm: 10 mA mA
SK-2865
Standby: 35 mA mA
Alarm: 75 mA mA
D Current Subtotals:
mA mA
*Additional Devices
Standby: mA mA
Alarm: mA mA
Standby: mA mA
Alarm: mA mA
E Current Subtotals:
mA mA
Total current rating of all devices in system (add A through E): mA mA
F
Total current ratings converted to amperes (x .001): A A