Bosch ICP-EZM2 - Standby Battery Calculation

Easy Series (ICP-EZM2) | Installer Guide | 7.0 Reference Materials
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Bosch Security Systems, Inc. | 5/07 | F01U025147-01 59
7.3 Standby Battery Calculation
Use the following formula to calculate standby battery capacity for 24 hr of standby power and 4 to 30 minutes
of alarm power:
(Total B _____ x 24 hr) + (Total C _____ x Y hr*) + 10% reserve = Total battery Ah required
* Y hr =
- For UL-approved residential applications (household), Y = 0.067 (4 minutes)
- For UL-approved commercial applications, Y = 0.25 (15 minutes)
- For ULC-approved commercial applications, Y = 0.50 (30 minutes)
If the Column C total exceeds 1.4 A, use an external power supply.
A
AC Power On
Normal Current
B
AC Power Off
Minimum Current
C
In Alarm
Maximum Current
Model Number Quantity
Used
Each
Unit
(mA)
Total
(mA)
Each
Unit
(mA)
Total
(mA)
Each
Unit
(mA)
Total
(mA)
Control Panel 85 x 1 = 85 85 x 1 = 85 160 x 1 = 160
Control Center
110 x Qty = 110 x Qty = 165 x Qty =
Wireless Hub
(IWT-WSN-N1-86)
30 x 1 = 30 30 x 1 = 30 30 x 1 = 30
DX2010
35 x Qty = 35 x Qty = 35 x Qty =
Sounders Connected to PO 4
D118 8 Ω Speaker
0 x Qty = 0 0 x Qty = 0 330 x Qty =
Ratings of other devices in system that are not shown above
x Qty = x Qty = x Qty =
x Qty = x Qty = x Qty =
x Qty = x Qty = x Qty =
x Qty = x Qty = x Qty =
x Qty = x Qty = x Qty =
x Qty = x Qty = x Qty =
Total
A
=
Total
B
=
Total
C
=