QT40.241, QT40.242
Q-Series
24V, 40A, THREE PHASE INPUT
INDEX
Page
Page
1. Intended Use .......................................................3
2. Installation Requirements...................................3
3. AC-Input...............................................................4
4. Input Inrush Current ...........................................5
5. DC-Input...............................................................5
6. Output .................................................................6
7. Hold-up Time.......................................................8
8. DC-OK Relay Contact ..........................................9
9. Shut-down Input .................................................9
10. Remote Control of Output Voltage .................10
11. Efficiency and Power Losses..............................11
12. Lifetime Expectancy and MTBF.........................12
13. Functional Diagram...........................................13
14. Terminals and Wiring........................................14
15. Front Side and User Elements...........................15
16. EMC....................................................................16
17. Environment......................................................17
18. Protection Features...........................................18
19. Safety Features..................................................18
20. Dielectric Strength ............................................19
21. Approvals...........................................................19
22. Physical Dimensions and Weight..................... 20
23. Accessories ........................................................ 21
23.1. ZM2.WALL - Wall mounting bracket.......21
23.2. UF20.241 - Buffer module........................21
23.3. YR80.241 - Redundancy Module..............22
24. Application Notes............................................. 23
24.1. Repetitive Pulse Loading..........................23
24.2. Peak Current Capability ...........................24
24.3. External Input Protection.........................24
24.4. Using only 2 Legs of a 3-Phase System ....25
24.5. Charging of Batteries ...............................26
24.6. Output Circuit Breakers............................26
24.7. Parallel Use to Increase Output Power....27
24.8. Parallel Use for Redundancy....................27
24.9. Series Operation .......................................28
24.10. Inductive and Capacitive Loads................28
24.11. Back-feeding Loads ..................................28
24.12. Use in a Tightly Sealed Enclosure ............28
24.13. Mounting Orientations ............................29
The information presented in this document is believed to be accurate and reliable and may change without notice.
No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.
TERMINOLOGY AND ABREVIATIONS
PE and
symbol
PE is the abbreviation for Protective Earth and has the same meaning as the symbol
This document uses the term “earth” which is the same as the U.S. term “ground”.
To be defined, value or description will follow later.
.
Earth, Ground
T.b.d.
AC 400V
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)
400Vac
A figure with the unit (Vac) at the end is a momentary figure without any additional
tolerances included.
50Hz vs. 60Hz
may
As long as not otherwise stated, AC 230V parameters are valid at 50Hz mains frequency.
A key word indicating flexibility of choice with no implied preference.
A key word indicating a mandatory requirement.
shall
should
A key word indicating flexibility of choice with a strongly preferred implementation.
Dec. 2016 / Rev. 2.4 DS-QT40.241-EN
All parameters are specified at 24V, 40A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
2/29
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