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Puls UB20 Series User Manual

Puls UB20 Series
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QS3.241
Q-Series
24V, 3.4A, SINGLE PHASE INPUT
Jul. 2020 / Rev. 2.3 DS-QS3.241-EN
All parameters are specified at 24V, 3.4A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
10/26
9. R
ELIABILITY
AC 100V AC 120V AC 230V
Lifetime expectancy
*) 48 000h 62 000h 79 000h at 24V, 3.4A and 40°C
117 000h 126 000h 114 000h at 24V, 1.7A and 40°C
137 000h*)
177 000h*)
224 000h*)
at 24V, 3.4A and 25°C
MTBF
**) SN 29500, IEC 61709 1 191 000h 1 265 000h 1 451 000h at 24V, 3.4A and 40°C
2 061 000h 2 155 000h 2 436 000h at 24V, 3.4A and 25°C
MTBF
**) MIL HDBK 217F 581 000h 631 000h 643 000h
at 24V, 3.4A and 40°C; Ground
Benign GB40
812 000h 889 000h 912 000h
at 24V, 3.4A and 25°C; Ground
Benign GB25
*) The Lifetime expectancy 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
capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years
(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
**) MTBF stands for 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.
The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means that
statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit
has been running for 50 000h or only for 100h.

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Puls UB20 Series Specifications

General IconGeneral
BrandPuls
ModelUB20 Series
CategoryPower Supply
LanguageEnglish

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