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S8BA-SBF
Engineering Data
Estimated backup time
The backup time varies depending on the capacity of connected devices.
After calculating the total capacity of connected devices, refer to the graph of the backup time to obtain an estimation of the initial value of the
backup time. (This is also applied to checking the battery.)
1. Convert the total capacity (power consumption) of the connected devices to watts (W).
For the indication of connected devices, check your computer and the rear of the display.
The indicator can show values in two different ways: amperes (A), and watts (W).
Example 1: 24 VDC, 145 W
Example 2: 24 VDC, 1.8 A
Indication
Value
A
W = A × 24
For devices that use the A indication, convert the capacity into W.
Example 2: 1.8 (A) = 1.8 × 24 (W) = 43.2 (W)
2. Add the values converted into W to obtain the total capacity of the connected devices.
3. Calculate the initial value of the backup time for the total capacity of the connected devices from the graph below.
• Graph of backup time (graph of initial values for products that have not been used at 25°C). The backup time becomes shorter than the graph
(table) below when temperature is lower.
320
280
240
200
160
120
80
40
0
0
• The smaller the capacity of connected devices becomes, the longer the backup time becomes.
Model
480W
(S8BA-24D24D480SBF
+
S8BA-S480L)
480W
(S8BA-24D24D480SBF
+
S8BA-S960L)
960W
(S8BA-24D24D960SBF
+
S8BA-S960L)
Note: These backup times are for reference only. Times may vary according to battery life and external environmental conditions (temperature,
etc).
28
60 120 180 240 300 360 420 480 540 600 660 720 780 840 900 960 1020
Capacity (W)
30
60
90
120 180 240 300 360 420 480 540 600 660 720 780 840 900 960
134
63
41
29
19
290
138
94
66
43
290
138
94
66
43
Capacity (Watt)
15
11
9
8
6
30
24
20
16
14
30
24
20
16
14
S8BA-24D24D960SBF
+
S8BA-S960L
S8BA-24D24D480SBF
+
S8BA-S960L
S8BA-24D24D480SBF
+
S8BA-S480L
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13
12
11
10
9
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8
7
6
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