Datasheet

YR20.242
Y-Series
12-28V, 20A, DUAL REDUNDANCY MODULE
INDEX
Page Page
1.
Intended Use .......................................................3
2. Installation Requirements...................................3
3. Input and Output Characteristics .......................4
4. Power Losses........................................................5
5. Lifetime Expectancy and MTBF...........................5
6. Terminals and Wiring..........................................6
7. Functional Diagram.............................................6
8. Front Side and User Elements.............................7
9. EMC ......................................................................8
10. Environment ........................................................9
11. Protection Features ...........................................10
12. Safety Features ..................................................10
13. Dielectric Strength ............................................10
14. Approvals...........................................................11
15. RoHS, REACH and Other Fulfilled Standards .. 11
16. Physical Dimensions and Weight ..................... 12
17. Accessories ........................................................ 13
17.1. ZM11.SIDE - Side Mounting Bracket........13
18. Application Notes............................................. 14
18.1. Using Only One Input instead of Both
Channels...............................................................14
18.2. Recommendations for Redundancy.........15
18.3. Inductive and Capacitive Loads................15
18.4. Sidewards Installation Clearances............15
18.5. 1+1 Redundancy up to 10A......................16
18.6. N+1 Redundancy, Example with 30A ......16
18.7. Mounting Orientations ............................17
The information given in this document is correct to the best of our knowledge and experience at the time of publication. If not
expressly agreed otherwise, this information does not represent a warranty in the legal sense of the word. As the state of our
knowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask
you to always use the latest issue of this document (available under www.pulspower.com). No part of this document may be
reproduced or utilized in any form without our prior permission in writing.
TERMINOLOGY AND ABREVIATIONS
DC 24V A figure displayed with the AC or DC before the value represents a nominal voltage with
standard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
24Vdc A figure with the unit (Vdc) at the end is a momentary figure without any additional
tolerances included.
may A key word indicating flexibility of choice with no implied preference
shall A key word indicating a mandatory requirement
should A key word indicating flexibility of choice with a strongly preferred implementation
1+1 Redundancy Use of two identical power supplies in parallel to provide continued operation following most
failures in a single power supply. The two power supply outputs should be isolated from each
other by utilizing diodes or other switching arrangements. E.g. two 10A power supplies are
needed to achieve a 10A redundant
system.
N+1 Redundancy Use of three or more identical power
supplies in parallel to provide
continued operation following most
failures in a single power supply. All
power supply outputs should be
isolated from each other by utilizing
diodes or other switching
arrangements.
E.g.: To achieve a 40A redundant
system, five 10A power supplies are
needed in a N+1 redundant system.
N+1
Redundancy
1+1
Redundancy
AC
DC
AC
DC
AC
DC
AC
DC
AC
DC
AC
DC
IN 1
OUT
IN 2 IN 1
OUT
IN 2 IN 1
OUT
IN 2
Load
+
-
AC
DC
AC
DC
Load
+
-
IN 1
OUT
IN 2
Jul. 2017 / Rev. 1.3 DS-YR20.242-EN All parameters are typical values specified at 24V, 20A output current, 25°C ambient and
after a 5 minutes run-in time unless otherwise noted.
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