Eaton easyE4 Manual page 706

Appendix
A.3 Technical data
702
Back-up
of real-time clock
Accuracy
of the real-time clock
The supercapacitor's full charge will be reached if the easyE4 device is
connected to the power supply for 24 hours.
easyE4 10/19 MN050009 EN www.eaton.com
300
280
25°C
260
240
220
200
180
160
55°C
140
120
①
100
80
60
40
20
0
0 1 2 3 4 5 6
① Backup time (hours) with fully charged double layer capacitor
② Service life (years)
typ. ± 2 s/day (± 0.2 h⁄year)
depending on ambient air temperature fluctuations of up to
± 5 s/day (± 0.5 h⁄year) are possible
7 8 9 10 11 12 13 14 15
②
16 17 18 19 20