Datasheet

QTD20.241
Q-Series
24V, 20A, DC INPUT
Mar 2012 / Rev. 1.2 DS-QTD20.241-EN
All parameters are specified at 24V, 20A, 600Vdc input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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INDEX PAGE INDEX PAGE
1. General Description ............................................1 20. Approvals.......................................................... 14
2. Short-form Data ..................................................1 21. Fulfilled Standards............................................ 14
3. Order Numbers....................................................1 22. Used Substances ............................................... 14
4. Markings..............................................................1 23. Physical Dimensions and Weight..................... 15
5. Input Voltage ......................................................3 24. Installation and Operation Instructions .......... 15
6. Input Inrush Current ...........................................4 25. Accessories ........................................................ 16
7. Output .................................................................5 26. Application Notes............................................. 17
8. Hold-up Time.......................................................7 26.1. Repetitive Pulse Loading........................ 17
9. DC-OK Relay Contact ..........................................7 26.2. Back-feeding Loads ................................ 18
10. Efficiency and Power Losses................................8 26.3. Charging of Batteries............................. 18
11. Functional Diagram.............................................9 26.4. Output Circuit Breakers ......................... 19
12. Front Side and User Elements.............................9 26.5. Parallel Use to Increase Output Power .20
13. Terminals and Wiring........................................10 26.6. Parallel Use for Redundancy.................. 20
14. Reliability...........................................................10 26.7. Daisy Chaining of Outputs..................... 20
15. EMC....................................................................11 26.8. Series Operation..................................... 21
16. Environment ......................................................12 26.9. Inductive and Capacitive Loads ............. 21
17. Protection Features ...........................................13 26.10. Use in a Tightly Sealed Enclosure .......... 21
18. Safety .................................................................13 26.11. Mounting Orientations.......................... 22
19. Dielectric Strength ............................................13
INTENDED USE
The power supply shall only be installed and put into operation by qualified personnel.
This power supply is designed for installation in an enclosure and is intended for the general use, such as in industrial
control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear
equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life.
TERMINOLOGY AND ABREVIATIONS
PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .
Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.
T.b.d. To be defined, value or description will follow later.
DC 600V 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 regardless whether it is charged (13.7V) or discharged
(10V)
600Vdc A figure with the unit (Vdc) at the end is a value which is used during testing without any
additional tolerances included.
DISCLAIMER
The information presented in this document is believed to be accurate and reliable and may change without notice.
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