18 Rockwell Automation Publication 1606-RM003A-EN-P - March 2019
DC-UPS with Integrated Battery - 24V, 10 A
Lifetime Expectancy and
Mean Time between
Failure
Attribute Description
Lifetime
expectancy
(1)
– min. 137,400 h at 10 A output current and 40 °C (104 °F)
min. > 15 years at 5 A output current and 40 °C (104 °F)
min. > 15 years at 10 A output current and 25 °C (77 °F)
MTBF
(2)
SN 29500, IEC 61709 886,000 h at 10 A output current and 40 °C (104 °F)
1,482,000 h at 10 A output current and 25 °C (77 °F)
MIL HDBK 217 F 397,900 h at 10 A output current and 40 °C (104 °F), Ground Benign GB40
545,000 h at 10 A output current and 25 °C (77 °F), Ground Benign GB25
(1) The Lifetime expectancy that is shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime expectancy of the
built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to the capacitors manufacturer specification. The
prediction model allows a calculation of up to 15 years (131,400 h) from date of shipment.
(2) MTBF represents Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a device. It is the statistical
representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.
All values except a battery.
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