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QT20.481
Data Sheet
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Installation Manual [ml]
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Puls QT20.481 Data Sheet

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Q-Series
1. GENERAL DESCRIPTION
The most outstanding features of this Dimension Q­Series DIN-rail power supply are the high efficiency and the small size, which are achieved by a synchronous rectification and further novel design details.
Large power reserves of 150% support the starting of heavy loads such as DC motors or capacitive loads. In many cases this allows the use of a unit from a lower wattage class which saves space and money.
High immunity to transients and power surges as well as low electromagnetic emission makes usage in nearly every environment possible.
The integrated output power manager and virtually no input inrush current make installation and usage simple with no jumpers and switches necessary. Diagnostics are easy due to the dry DC-ok contact, a green DC-ok LED and red overload LED.
Unique quick-connect spring-clamp terminals allow a safe and fast installation and a large international approval package for a variety of applications makes this unit suitable for nearly every situation.
QT20.481
48V, 10A, THREE PHASE INPUT
POWER SUPPLY
• 3AC 380-480V Wide-range Input
• 2-Phase Operation also Possible
• Efficiency up to 95.4%
• Width only 65mm
• 150% Peak Load Capability
• Active Power Factor Correction PFC
• Active Input Transient Filter
• Full Power Between -25°C and +60°C
• Minimal Inrush Current
• DC-OK Relay Contact
• Quick-connect Spring Clamp Terminals
• 3 Year Warranty
2. SHORT-FORM DATA
Output voltage DC 48V Adjustment range 48-55V Output current 10A Continuous, 48V 15A For typ. 4s, 48V Output power 480W Continuous, 48V 720W For typ. 4s, 48V Output ripple < 100mVpp 20Hz to 20MHz Input voltage AC 380-480V ±15% Mains frequency 50-60Hz ±6% AC Input current 0.79 / 0.65A At 3x400 / 480Vac Power factor 0.94 / 0.95 At 3x400 / 480Vac AC Inrush current typ. 3A peak Efficiency 95.4 / 95.0% At 3x400 / 480Vac Losses 23.1 / 25.3W At 3x400 / 480Vac Temperature range -25°C to +70°C Operational Derating 12W/°C +60 to +70°C Hold-up time typ. 22 / 22ms At 3x400 / 480Vac Dimensions 65x124x127mm WxHxD
3. ORDER NUMBERS
Power Supply
Accessory ZM1.WALL Wall mount bracket ZM14.SIDE Side mount bracket YR2.DIODE Decoupling module UF20.481 Buffer unit
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
QT20.481
48-55V Standard unit
4. MARKINGS
IND. CONT. EQ.
UL 508
EMC, LVD
UL 60950-1
Marine
GL
Class I Div 2
1/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
INDEX PAGE INDEX PAGE
1.
General Description ............................................1
2. Short-form Data ..................................................1
3. Order Numbers....................................................1
4. Markings ..............................................................1
5. AC-Input...............................................................3
6. DC-Input...............................................................4
7. Input Inrush Current ...........................................4
8. Output .................................................................5
9. Hold-up Time.......................................................7
10. DC-OK Relay Contact ..........................................7
11. Efficiency and Power Losses................................8
12. Functional Diagram.............................................9
13. Front Side and User Elements.............................9
14. Terminals and Wiring........................................10
15. Reliability...........................................................10
16. EMC....................................................................11
17. Environment......................................................12
18. Protection Features ...........................................13
19. Safety .................................................................13
20. Dielectric Strength ............................................13
21. Approvals...........................................................14
22. Fulfilled Standards............................................ 14
23. Used Substances ............................................... 14
24. Physical Dimensions and Weight..................... 15
25. Installation and Operation Instructions .......... 15
26. Accessory........................................................... 16
27. Application Notes............................................. 17
27.1. Repetitive Pulse Loading........................ 17
27.2. Peak Current Capability ......................... 18
27.3. Back-feeding Loads ................................ 18
27.4. Charging of Batteries............................. 18
27.5. Output Circuit Breakers ......................... 19
27.6. External Input Protection....................... 20
27.7. 2-Phase Operation.................................. 20
27.8. Parallel Use to Increase Output Power . 21
27.9. Parallel Use for Redundancy.................. 21
27.10. Daisy Chaining of Outputs..................... 21
27.11. Series Operation ..................................... 22
27.12. Inductive and Capacitive Loads ............. 22
27.13. Use in a Tightly Sealed Enclosure .......... 22
27.14. Mounting Orientations .......................... 23
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.
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) As long as not otherwise stated, AC 380V and AC 400V parameters are valid at 50Hz and AC 480V parameters are valid at 60Hz mains frequency.
400Vac A figure with the unit (Vac) at the end is a momentary figure without any additional
tolerances included.
DISCLAIMER
The information presented in this document is believed to be accurate and reliable and may change without notice.
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
2/23
A
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
5. AC-INPUT
AC input
AC input range min. 3x 323-552Vac Continuous operation min. 3x 280-323Vac Full power for 200ms, no damage between 0 and 280Vac
Input frequency Turn-on voltage typ. 3x 263Vac Steady-state value, see Fig. 5-1 Shut-down voltage typ. 3x 242Vac Steady-state value, see Fig. 5-1
3AC 400V 3AC 480V
Input current typ. 0.79A 0.65A At 48V, 10A, all three phases equal voltage
Power factor *) typ. 0.94 0.95 At 48V, 10A, see Fig. 5-4 Start-up delay typ. 350ms 290ms See Fig. 5-2 Rise time typ. 30ms 30ms 0mF, 48V, 10A, see Fig. 5-2
Turn-on overshoot
*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
Fig. 5-1 Input voltage range Fig. 5-2 Turn-on behavior, definitions
P
OUT
full power
for 200ms
Rated input range
nom. 3AC 380-480V Wide-range input, TN-, TT-, IT-Mains, see Fig. 5-1
Consult factory if one phase is earthed.
For 2-phase operation see section 27.7 nom. 50–60Hz ±6%
See Fig. 5-3
typ. 40ms 40ms 10mF, 48V, 10A, see Fig. 5-2 max. 500mV 500mV See Fig. 5-2
Intput Voltage
Turn-on
Shut-down
V
IN
323V
280V 3x 552Vac
Output Voltage
- 5%
Start-up
delay
Rise
Time
Fig. 5-3 Input current vs. output load at 48V Fig. 5-4 Power factor vs. output load
Input Current, typ.
0.8A
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
c
a
V
0
0
4
a
x
V
3
0
8
4
x
3
Output Current
123456789
c
10A
Power Factor, typ.
1.0
0.95
0.9
0.85
0.8
0.75
3x
400Vac
3x
480Vac
Output Current
12345678910
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
Overshoot
3/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
6. DC-INPUT
The QT20 series shall not be used with a DC-input voltage without consulting PULS. Check QTD20.241 for DC-input voltage. (special version for intermediate bus systems, drive systems)
7. INPUT INRUSH CURRENT
An active inrush limitation circuitry limits the input inrush current after turn-on of the input voltage and after short input voltage interruptions.
The charging current into EMI suppression capacitors is disregarded in the first milliseconds after switch-on.
Inrush current max. 10A typ. 3A Inrush energy Inrush delay
max. 1A2s 1A2s -25°C to +70°C typ. 270ms 220ms
Fig. 7-1 Input inrush current, typical behavior
Input Current
A
Input Voltage
3AC 400V 3AC 480V
10A
peak
3A
peak
-25°C to +70°C
peak
-25°C to +70°C
peak
A: Inrush delay B: Start-up delay
Input: 3x400Vac Output: 48V, 10A Ambient: 25°C
Upper curve: Input current 2A / DIV Medium curve: Input voltage 1000V / DIV Lower curve: Output voltage 100V / DIV Time basis: 100ms / DIV
B
Output Voltage
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
4/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
8. OUTPUT
Output voltage Adjustment range max. 56.1V At clockwise end position of potentiometer Factory setting Line regulation Load regulation max. 100mV Static value, 0A Æ 10A Æ 0A Ripple and noise voltage
Output capacitance
Continuous power capability
Output current
Output power nom. 480W 48V, continuous nom. 480W 55V, continuous Short-circuit current max. 11.5A Load impedance 50mOhm, see Fig. 8-1
nom. 48V min. 48-55V Guaranteed, multi turn potentiometer
max. 10mV 320 to 552Vac
max. 100mVpp 20Hz to 20MHz, 50Ohm typ. 250µF The energy of the bulk capacitor on the input side will be
nom. 10A At 48V, see Fig. 8-1 nom. 8.7A
min. 10A Load impedance 50mOhm, see Fig. 8-1
48.0V
±0.2%, at full load, cold unit
transferred to the output to supply short load peaks.
At 55V, see
Fig. 8-1
BonusPower®, short term power capability (up to typ. 4s)
The power supply is designed to support loads with a higher short-term power requirement without damage or shutdown. The short-term duration is hardware controlled by an output power manager. The BonusPower
repeatedly available. Detailed information can be found in chapter 27.1 .
Once BonusPower® has been stopped by the output power limiter, a timer disables the next BonusPower® capability. The recovery timer will start as soon as the output voltage reaches the adjusted value again, which usually happens after the load has been reduced.
Output current nom. 15A At 48V, see Fig. 8-1
Output power nom. 720W 48V, short term nom. 720W 55V, short term Short-circuit current max. 17A Load impedance 50mOhm, see Fig. 8-1 Bonus time min 3.5s See Fig. 8-2
BonusPower® recovery time
Peak current capability (up to several ms)
The power supply can deliver a peak current which is higher than the specified short-term current. This helps to start current demanding loads or to safely operate subsequent circuit breakers.
The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 27.2.
Peak current voltage dips typ. from 48V to 37V At 20A for 20ms typ. from 48V to 38.5V
nom. 13A
min. 15A Load impedance 50mOhm, see Fig. 8-1
typ. 4s At 48V, 15A, duration until the output voltage dips,
max. 4.5s
typ. 7s Overload free time to reset power manager, see Fig. 8-3
typ. from 48V to 34.2V
At 55V, see
At 40A for 2ms At 40A for 5ms
Fig. 8-1
®
is
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
5/23
A
Q-Series
48V, 10A, THREE PHASE INPUT
Fig. 8-1 Output voltage vs. output current, typ. Fig. 8-2 Bonus time vs. output power
Output Voltage
55V
48
40
32
24
16
8 0
02 6 1012
Output Current
4
Adjustment
Range
c o
n t
i
n u o u s
814
16
s h
o r
t
-
t e
r m
Bonus Time
5s
4
3
m
a
x
i
m
n
.
2
1
0
110 120 130 140 150
Output Power
Fig. 8-3 BonusPower® recovery time
Power Demand
<150%
Limitation by Power Manager
100%
QT20.481
.
160%
Output Voltage
Bonus Power
Fig. 8-4 BonusPower® after input turn-on
Intput Voltage
Output Voltage
Output Power
Bonus
Time
Recovery Time
Bonus Power disabled
®
is available as soon as power comes on and immediately after the end of an output short circuit.
Fig. 8-5 BonusPower® after output short
Short of
Output
Output Voltage
150%
Bonus Power
100%
150%
Bonus Power
Output Power
100%
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
6/23
Q-Series
48V, 10A, THREE PHASE INPUT
9. HOLD-UP TIME
3AC 400V 3AC 480V
Hold-up Time typ. 22ms 22ms 10A, 48V, see typ. 44ms 44ms 5A, 48V, see Fig. 9-1
Fig. 9-1 Hold-up time vs. input voltage Fig. 9-2 Shut-down behavior, definitions
Hold-up Time
50ms
40
V,
8
4
V,
8
4
.
p
y
t
,
A
5
Intput
.
n
i
m
,
A
5
Voltage
30
.
p
y
t
,
A
20
0
1
,
V
8
4
.
i
n
m
,
A
0
1
,
V
8
4
10
0
320 360 400 440 3x480Vac
Input Voltage
Output Voltage
Fig. 9-1
Zero Transition
Hold-up Time
QT20.481
- 5%
10. DC-OK RELAY CONTACT
This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back­fed voltage from a unit which is connected in parallel to the power supply output.
Contact closes As soon as the output voltage reaches the adjusted output voltage. Contact opens As soon as the output voltage dips more than 10% below the adjusted output voltage.
Contact re-closes As soon as the output voltage exceeds 90% of the adjusted voltage. Contact ratings max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A resistive load min 1mA at 5Vdc min. permissible load Isolation voltage See dielectric strength table in section 20
Fig. 10-1 DC-ok relay contact behavior
V
=
V
OUT
ADJ
90% V
ADJ
open
<
1ms
Short dips will be extended to a signal length of 250ms. Dips shorter than 1ms will be ignored.
Note:
The DC-ok feature requires that the output voltage
10%
reaches the nominal (=adjusted) level after turn-on in order to function according to specification. If this level cannot be achieved, the overload lamp will be on and
>
1ms
250ms
the DC-ok contact will be open. The overload signal will only shut off as soon as the adjusted voltage is reached. This is an important condition to consider particularly, if the load is a battery, the power supply is used in
openclosed closed
parallel or the power supply is used for N+1 redundant systems.
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
7/23
c
c
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
11. EFFICIENCY AND POWER LOSSES
3AC 400V 3AC 480V
Efficiency typ. 95.4% 95.0% 10A, 48V, Power losses typ. 23.1W 25.3W 10A, 48V, typ. 8.2W 10.0W 0A
Fig. 11-1 Efficiency vs. output current at 48V Fig. 11-2 Losses vs. output current at 48V
Efficiency
96%
95
3x
94
400Vac
93 92 91 90 89 88
3x
480Vac
Output Current
2345678910A
30W
Fig. 11-3 Efficiency vs. input voltage, 48V, 10A Fig. 11-4 Losses vs. input voltage, 48V, 10A
Efficiency
95.8%
95.6
95.4
95.2
95.0
94.8
94.6 350 400 450 500 3x550
Input Voltage
Va
Power Losses
25
20
15
10
5
0
01234567 10A
Power Losses
27W
26.0
25.0
24.0
23.0
22.0
21.0 350 400 450 500 3x550
3x
480Vac
Input Voltage
3x
400Vac
Output Current
89
Va
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
8/23
Q-Series
12. FUNCTIONAL DIAGRAM
Fig. 12-1 Functional diagram
L1 L2 L3
Input Filter Input Rectifier Inrush Limiter Transient Filter
Temper-
ature Shut­down
Output Power
Manager
PFC
Converter
Output
Over-
Voltage
Protection
Power
Converter
Output Voltage Monitor
QT20.481
48V, 10A, THREE PHASE INPUT
Output
Voltage
Regulator
Output
Filter
DC ok Relay
V
OUT
+ +
-
-
Over­load
DC ok
DC ok
13. FRONT SIDE AND USER ELEMENTS
Fig. 13-1 Front side
Output Terminals
Quick-connect spring-clamp terminals, no tools required
+ Positive output
- Negative (return) output
Dual pins per pole DC ok Relay contact (NO-contact)
480W Continuous power / 720W Peak power
Input Terminals
Quick-connect spring-clamp terminals, no tools required
L1, L2, L3 Line inputs
... PE (Protective Earth) input
See chapter 14 “Terminals and Wiring” to choose appropriate wire gauges
Output voltage potentiometer (multi turn potentiometer) Open the flap to tune the output voltage. Factory setting: 48.0V
DC-ok lamp (green) Overload lamp (red)
Normal mode OFF ON Closed BonusPower®
mode Overload
< 90%)
(V
OUT
Short-circuit
= ca. 0V)
(V
OUT
Over­temperature
No input power OFF OFF Open
Overload
lamp
OFF ON Closed
ON OFF Open
ON OFF Open
OFF ON
DC-ok lamp and DC-ok contact function synchronized
DC-ok
lamp
DC-ok
contact
Open
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
9/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
14. TERMINALS AND WIRING
Type Bi-stable, quick-connect spring clamp terminals. IP20 Finger safe construction.
Suitable for field- and factory installation. Shipped in open position. Solid wire 0.5-6mm Stranded wire 0.5-4mm2 American wire gauge 20-10 AWG Ferrules Allowed, but not required Wire stripping length 10mm / 0.4inch Pull-out force 10AWG:80N, 12AWG:60N, 14AWG:50N, 16AWG:40N (according to UL486E)
Fig. 14-1 Connecting a wire
1.
Insert the wire
To disconnect wire: same procedure vice versa
2.
Snap the lever
2
Instructions:
a) Use appropriate copper cables that are designed
for an operating temperature of: 60°C for ambient up to 45°C and 75°C for ambient up to 60°C minimum.
b) Follow national installation codes and
installation regulations!
c) Ensure that all strands of a stranded wire enter
the terminal connection!
d) Up to two stranded wires with the same cross
section are permitted in one connection point (except PE wire).
e) Do not use the unit without PE connection.
15. RELIABILITY
Lifetime expectancy min. 51 000h 48 000h 40°C, 48V, 10A min. 89 000h 86 000h 40°C, 48V, 5A min. 144 000h 135 000h 25°C, 48V, 10A MTBF SN 29500, IEC 61709 690 000h 670 000h 40°C, 48V, 10A 1 194 000h 1 159 000h 25°C, 48V, 10A MTBF MIL HDBK 217F 284 000h 271 000h 40°C, 48V, 10A, Ground Benign GB40 389 000h 371 000h 25°C, 48V, 10A, Ground Benign GB25
The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the lifetime expectancy of the built-in electrolytic capacitors.
Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to the capacitor’s manufacturer specification. The prediction model allows a calculation of up to 15 years from date of shipment.
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.
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
3AC 400V 3AC 480V
10/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
16. EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light industry environment without any restrictions. CE mark is in conformance with EMC guideline 89/336/EEC and 93/68/EEC and the low-voltage directive (LVD) 73/23/EWG. A detailed EMC Report is available upon request
EMC Immunity
Electrostatic discharge EN 61000-4-2 Contact discharge
Electromagnetic RF field EN 61000-4-3 80MHz-1GHz 10V/m Criterion A
Fast transients (Burst) EN 61000-4-4 Input lines
Surge voltage on input EN 61000-4-5 L1 Æ L2, L2 Æ L3,
Surge voltage on input EN 61000-4-5 L1 / L2 / L3 Æ PE 4kV Criterion A
Surge voltage on output EN 61000-4-5 + Æ -
Conducted disturbance EN 61000-4-6 0.15-80MHz 10V Criterion A
Mains voltage dips Dip on all three phases
Mains voltage dips Dip on one phase
Voltage interruptions EN 61000-4-11 0Vac, 5000ms Criterion C
Voltage sags SEMI F47 0200 Dips on two phases
Powerful transients VDE 0160 over entire load
Criterions: A: Power supply shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible. Power supply might shut-down and restarts by itself. No damages or hazards for the power supply occur.
EMC Emission
Conducted emission EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B, input lines Radiated emission EN 55011, EN 55022 Class B Harmonic input current EN 61000-3-2 Fulfilled, active PFC Voltage fluctuations, flicker EN 61000-3-3 Fulfilled
This device complies with FCC Part 15 rules. Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Switching Frequencies
Switching frequency 1 100kHz Nearly constant Switching frequency 2 30kHz to 90kHz Input voltage and load dependent Switching frequency 3 40kHz to 220kHz Input voltage and load dependent
EN 61000-6-1 EN 61000-6-2
Air discharge
Output lines
L1 Æ L3
+ / - Æ PE
EN 61000-4-11 70% of 380Vac
40% of 380Vac 40% of 380Vac
EN 61000-4-11 70% of 380Vac
40% of 380Vac 40% of 380Vac
according to section
7.2. (SEMI F47-200)
range
EN 61000-6-3 and EN 61000-6-4 Generic standards
The power supply has three converters with three different switching frequencies included. One is nearly constant. The other two are input voltage and load dependent.
Generic standards 8kV
15kV
4kV 2kV
2kV Criterion A
500V 500V
266Vac, 10ms 152Vac, 100ms 152Vac, 1000ms
266Vac, 10ms 152Vac, 100ms 152Vac, 1000ms
304Vac, 1000ms 266Vac, 500ms 190Vac, 200ms
1300V, 1.3ms Criterion A
Criterion A Criterion A
Criterion A Criterion A
Criterion A Criterion A
Criterion A Criterion C Criterion C
Criterion A Criterion A Criterion A
Criterion A Criterion A Criterion A
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
11/23
C
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
17. ENVIRONMENT
Operational temperature -25°C to +70°C (-13°F to 158°F) Reduce output power above +60°C Output de-rating 12W/°C 60-70°C (140°F to 158°F), see Fig. 17-1 Storage temperature -40 to +85°C (-40°F to 185°F) Storage and transportation
Humidity 5 to 95% r.H. IEC 60068-2-30
Vibration sinusoidal 2-17.8Hz: ±1.6mm;
17.8-500Hz: 2g 2 hours / axis
2(s3
Vibration random
0.5m 2 hours / axis
)
Shock 30g 6ms, 20g 11ms
3 bumps / direction, 18 bumps in total
Altitude 0 to 6000m (0 to 20 000ft) Reduce output power or ambient temperature
Output de-rating (for altitude) 30W/1000m or 5°C/1000m above 2000m, see Fig. 17-2 Over-voltage category III EN 50178, altitudes up to 2000m II Altitudes from 2000m to 6000m Degree of pollution 2 EN 50178, not conductive
Fig. 17-1 Output current vs. ambient temp., Fig. 17-2 Output current vs. altitude
Allowed Output Current at 48V
15A
12.5
10
7.5
5
2.5
0
-25 0 20 40
Ambient Temperature
f
r
o
p
t
y
4
.
s
c
o
i
t
n
u
n
u
o
s
60
70°
The ambient temperature is defined as the air temperature 2cm below the unit.
Do not energize while condensation is present IEC 60068-2-6
IEC 60068-2-64
IEC 60068-2-27
above 2000m sea level.
Allowed Output Current at 48V
15A
12.5
f
o
r
t
y
.
p
s
4
10
c
o
n
t
i
u
n
s
u
7.5
5
2.5
0
0 2000 4000
o
.
A
.
a
.
T
b
m
<
6
°
B
.
.
.
T
C
.
.
.
T
0
a
b
m
<
5
°
0
a
b
m
<
4
°
0
C
B
A
C C C
Altitude
6000m
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
12/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
18. PROTECTION FEATURES
Output protection Electronically protected against overload, no-load and short-circuits Output over-voltage protection typ. 57Vdc
max. 60Vdc
Degree of protection IP 20 EN/IEC 60529 Penetration protection > 3.5mm e.g. screws, small parts Over-temperature protection yes Output shut-down with automatic restart Input transient protection MOV (Metal Oxide Varistor) and active transient filter Internal input fuse Not included See section 27.6
Note: In case of a protection event, audible noise may occur.
In case of an internal power supply defect, a redundant circuitry limits the maximum output voltage. The output shuts-down and automatically attempts to restart.
19. SAFETY
Input / output separation SELV IEC/EN 60950-1 PELV EN 60204-1, EN 50178, IEC 60364-4-41 double or reinforced insulation Class of protection I PE (Protective Earth) connection required Isolation resistance > 5MOhm Input to output, 500Vdc PE resistance < 0.1Ohm Between housing and PE terminal Touch current (leakage current) typ. 0.38mA 3x 400Vac, 50Hz, TN mains typ. 0.54mA 3x 480Vac, 60Hz, TN mains < 0.47mA 3x 440Vac, 50Hz, TN mains < 0.7mA 3x 528Vac, 60Hz, TN mains
20. DIELECTRIC STRENGTH
The output voltage is floating and has no ohmic connection to ground. To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or
any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in which a load starts unexpectedly or can not be switched off any more when unnoticed earth faults occur.
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
Fig. 20-1 Dielectric strength
Input DC-ok
L1 L2 L3
A
Earth
B
B
C
D
Output
+
-
Type test 60s 2500Vac 3000Vac 500Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac 500Vac
Field test 5s 2000Vac 2000Vac 500Vac 500Vac
Type tests and factory tests: Conducted by the manufacturer. Do not repeat test in field! Rules for field test: Use appropriate test equipment which applies the voltage with a slow ramp! Connect L1, L2 and L3 together as well as all output poles.
A B C D
13/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
21. APPROVALS
IEC 60950-1
IECEE
CB SCHEME
UL 508
IND. CONT. EQ.
UL 60950-1
UL 1604
The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations as well as for Class I
Marine
Zone 2 Groups IIA, IIB and IIC locations. Substitution of components may impair suitability for Class I Division 2 environment. Do not disconnect equipment unless power has been switched off. Wiring must be in accordance with Class I, Division 2 wiring methods of the National Electrical Code, NFPA 70, and in accordance with other local or national codes.
GL
ABS
CB Scheme, Information Technology Equipment
LISTED E198865 listed for use in U.S.A. (UL 508) and Canada (C22.2 No. 14-95) Industrial Control Equipment
RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-
1) and Canada (C22.2 No. 60950) Information Technology Equipment, Level 5
RECOGNIZED E246877 recognized for use in U.S.A. (UL 1604) and Canada (C22.2 No. 213-M1987) Hazardous Location Class I Div 2 T4A Groups A,B,C,D and Class I Zone 2 Groups IIA, IIB and IIC
GL (Germanischer Lloyd) classified and ABS (American Bureau for Shipping) PDA for marine and offshore applications.
Environmental category: C, EMC2
22. FULFILLED STANDARDS
EN 61558-2-17 Safety of Power Transformers
EN/IEC 60204-1 Safety of Electrical Equipment of Machines
EN/IEC 61131-2 Programmable Controllers
EN 50178 Electronic Equipment in Power Installations
SEMI F47-200 Ride-through compliance for semiconductor industry.
23. USED SUBSTANCES
The unit does not release any silicone and is suitable for the use in paint shops.
Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.
Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.
The production material within our production does not include following toxic chemicals: Polychlorized Biphenyl (PCB), Polychlorized Terphenyl (PCT), Pentachlorophenol (PCP), Polychlorinated naphthalene (PCN), Polybrom Biphenyll (PBB), Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO), Cadmium, Asbest, Mercury, Silicia
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
14/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
24. PHYSICAL DIMENSIONS AND WEIGHT
Weight 870g / 1.92lb DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
The DIN-rail height must be added to the depth (127mm) to calculate the total required installation depth.
Electronic files with mechanical data can be downloaded at www.pulspower.com
Fig. 24-1 Front view Fig. 24-2 Side view
25. INSTALLATION AND OPERATION INSTRUCTIONS
Mounting Orientation:
Output terminal must be located on top and input terminal on the bottom. For other orientations see section 0.
Cooling:
Convection cooled, no forced cooling required. Do not cover ventilation grid (e.g. cable conduits) by more than 30%!
Installation clearances:
40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. In case the adjacent device is a heat source, 15mm clearance is recommended.
Risk of electrical shock, fire, personal injury or death!
Do not use the unit without proper earth connection (Protective Earth). Use the pin on the terminal block for earth connection and not one of the screws on the housing. Turn power off before working on the power supply. Protect against inadvertent re-powering. Make sure the wiring is correct by following all local and national codes. Do not open, modify or repair the unit. Use caution to prevent any foreign objects from entering into the housing. Do not use in wet locations or in areas where moisture or condensation can be expected.
Service parts: The unit does not contain any serviceable parts. If damage or malfunctioning should occur during operation, immediately turn power off and send unit to factory for inspection!
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
15/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
26. ACCESSORY
ZM1.WALL Wall mounting bracket This bracket is used to mount Dimension units onto a flat surface without utilizing a DIN-Rail. The two aluminum
brackets and the black plastic slide of the unit have to be detached, so that the two steel brackets can be mounted.
Fig. 26-1 ZM1.WALL Wall Mounting Bracket Fig. 26-2 Assembled Wall Mounting Bracket
ZM14.SIDE Side mounting bracket This bracket is used to mount Dimension units sideways with or without utilizing a DIN-Rail. The two aluminum
brackets and the black plastic slide of the unit have to be detached, so that the steel brackets can be mounted. For sideways DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on
the steel bracket.
Fig. 26-3 ZM14.SIDE Side Mounting Bracket
Panel Mount
Fig. 26-4 ZM14.SIDE Side Mounting Bracket
DIN-Rail Mount
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
16/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
27. APPLICATION NOTES
27.1. REPETITIVE PULSE LOADING
Typically, a load current is not constant. It varies over time. For pulse load compatibility, following rules must be met: a) The pulse power demand must be below 150% of the nominal power.
b) The duration of the pulse power must be shorter than the allowed Bonus Time. (see output section) c) The average (R.M.S.) output current must be below the specified continuous output current.
If the R.M.S. current is higher, the unit will respond with a thermal shut-down after a while. Use the max. duty
cycle curve (Fig. 27-2) to check if the average output current is below the nominal current. d) The duty cycle must be below 0.75. e) For altitudes higher than 2000m reduce the pulse loading (15W/1000m) or the ambient temperature (5°C/1000m)
Fig. 27-1 Repetitive pulse loads, definitions Fig. 27-2 Max. Duty Cycle Curve
P0
=
0
1
Duty Cycle
P
max.
150%
100%
PEAKTPEAK
P
0
P0 Base load (W)
P
Pulse load (above 100%)
PEAK
T
Duration between pulses (s)
0
Pulse duration (s)
T
PEAK
T
0
0.75
0.6
0.4
0.2
0
D
utyCycle
T0 =
P
=
1
0
110 120 130 140
T
peak
=
T
peak + T0
T
peak -
(D
utyCycle
x T
peak
D
utyCycle
%
0
0
)
Utilizing the Max. Duty Cycle Curve:
Example to determine the repetition rate of pulses without dipping of the output voltage:
Parameters of application:
Pulse length is T
PEAK = 1s
Steady state load P (= 50% of I
RATED
0=120W
)
Peak load P (= 150% of I
PEAK = 360W
)
RATED
Determining the repetition rate:
1) make a vertical line at P
PEAK
= 150%
2) make a horizontal line where the vertical line crosses the P
3) Read the Max. Duty Cycle from the Duty Cycle-axis (= 0.37)
4) Calculate the min. pause (base load) length T0 :
T
peak -
(D
utyCycle
x T
peak
)
T0 =
D
utyCycle
1s - (0.37 x 1s)
=
0.37
=1.7s
5) Pulse length = 1s, min. pause length = 1.7s
6) Max. repetition rate = pulse length +pause length = 2.7s
More examples for pulse load compatibility:
P
P
PEAK
T
0
PEAK
T0
P
P
PEAK
T
0
PEAK
T0
720W 480W 1s >25s 720W 240W 0.1s >0.16s 720W 0W 1s >1.3s 720W 240W 1s >1.6s 600W 240W 1s > 0,75s 720W 240W 3s >4.9s
%
P
=
0
5
%
0
P
=
%
5
7
0
P
PEAK
150%100
= 50% curve
0
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
17/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
27.2. PEAK CURRENT CAPABILITY
Solenoids, contactors and pneumatic modules often have a steady state coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady state current and usually exceeds the nominal output current (including the Bonus Power®) The same situation applies, when starting a capacitive load.
Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch circuit, the fuse needs a certain amount of over-current to trip or to blow. The peak current capability ensures the safe operation of subsequent circuit breakers.
Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the power supply can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The following two examples show typical voltage dips:
Fig. 27-3 Peak load 20A for 50ms, typ. Fig. 27-4 Peak load 40A for 5ms, typ.
48V
20A
30.6V
Output Voltage
48V
40A
Output Voltage
34.2V
0A
20ms/DIV
Peak load 20A (resistive) for 50ms
Output voltage dips from 48V to 30.6V.
Output Current
0A
Output voltage dips from 48V to 34.2V.
2ms/DIV
Peak load 80A (resistive) for 5ms
Output Current
Please note: The DC-OK relay triggers when the voltage dips more than 10% for longer than 1ms.
27.3. BACK-FEEDING LOADS
Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called return voltage immunity or resistance against Back- E.M.F. (E
lectro Magnetic Force).
This power supply is resistant and does not show malfunctioning when a load feeds back voltage to the power supply. It does not matter, whether the power supply is on or off.
The maximum allowed feed back voltage is 58Vdc. The absorbing energy can be calculated according to the built-in large sized output capacitor which is specified in chapter 8.
27.4. CHARGING OF BATTERIES
The power supply can be used to charge lead-acid or maintenance free batteries. (Four 12V batteries in series)
Instructions for charging batteries:
a) Set output voltage (measured at the battery) very precisely to the end-of-charge voltage.
End-of-charge voltage 55.6V 55.0V 54.3V 53.6V Battery temperature 10°C 20°C 30°C 40°C
b) Use a 25A circuit breaker (or blocking diode ) between the power supply and the battery. c) Ensure that the output current of the power supply is below the allowed charging current of the battery. d) Use only matched batteries when putting 12V types in series. e) The return current to the power supply is typ. 14mA at 55Vdc when the power supply is switched off (except in
case a blocking diode is utilized).
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
18/23
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
27.5. OUTPUT CIRCUIT BREAKERS
Standard miniature circuit breakers (MCBs) can be used for branch protection. Ensure that the MCB is rated for DC voltage, too. The following tests show which circuit breakers the power supply typically trips.
Circuit breakers have huge tolerances in their tripping behavior. Therefore, these typical tests can only be used as a recommendation or for comparing two different power supplies. Furthermore, the loop impedance has a major influence on whether a breaker trips or not. Two tests were performed, representing typical situations:
Test 1: Short circuit with S1 on the power supply end of the cable (loop impedance approx. 20mOhm)
Fig. 27-5 Branch protectors, test circuit 1
Circuit
Power
Supply
AC
DC
Breaker
I
+
S1
-
+
Load
-
Test 2: Short circuit with S1 on the load end (additional impedance included; represents longer load wire length).
Fig. 27-6 Branch protectors, test circuit 2
Circuit
Power
Supply
AC
DC
Breaker
I
+
-
R
+
S1 Load
-
Example: Which wire gauge must be used to trip a B-Characteristic circuit breaker with a rating of 6A? The load wire length is 21m.
Answer: A 6A B-Characteristic circuit breaker requires a loop impedance of less than 180mOhm (test results). The wire length table shows that up to 25.1m wire with a cross section of 2.5mm than 2.5mm
2
shall be used.
120mOhm
180mOhm 220mOhm
Parameters: Input voltage:3x 400Vac, load current: 0A
Tripping time shorter than 5s. The following circuit breaker tripped during the test:
A- or Z- Characteristic:: equal or smaller 10A B- Characteristic: equal or smaller 6A C- Characteristic: equal or smaller 4A
Parameters: Input voltage: 3x 400Vac, load current: 0A
Tripping time shorter than 5s. The following circuit breaker tripped during the test:
A- or Z- Characteristic:: ≤ 16A and R< 120mOhm B- Characteristic: ≤ 6A and R< 180mOhm C- Characteristic: ≤ 6A and R<= 220mOhm
What does this resistance mean in wire length?
2
0.5mm
0.7mm2 1.0mm2 1.5mm2 2.5mm2 4.0mm2
3.3m 4.7m 6.7m 10.0m 16.7m 26.7m
5.0m 7.0m 10.0m 15.0m 25.1m 40.1m
6.1m 8.6m 12.3m 18.4m 30.6m 49.0m
2
are below 180mOhm. A wire not smaller
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
19/23
C
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
27.6. EXTERNAL INPUT PROTECTION
The unit is tested and approved for branch circuits up to 15A (U.S.A.) and 16A (IEC). External protection is only required, if the supplying branch has an ampacity greater than this. In some countries local regulations might apply. Check also local codes and local requirements.
If an external fuse is necessary or utilized, a minimum value is required to avoid undesired tripping of the fuse.
B-Characteristic C-Characteristic Ampacity max. min.
16A (U.S.A.: 15A) 16A (U.S.A.: 15A)
6A 3A
27.7. 2-PHASE OPERATION
The QT20 series is specified to operate on two phases.
Instructions for 2-ph operation:
Reduce output power according to curve. Exceeding the limits results in a thermal shut-down.
The specification for EMC performance, hold-up time, losses and output ripple will no longer be valid. Check suitability individually in the application.
Fig. 27-8 2-phase operation, allowed output
Allowed Output Current at 48V
15A
f
o
current
y
r
t
.
p
s
4
12.5
10
7.5
5
2.5
0
-25 0 20
c
o
t
n
i
u
n
s
u
o
.
A
.
.
x
2
6
4
0
t
o
5
5
V
a
2
.
B
.
.
x
2
4
3
0
Input Voltage
c
t
o
6
4
V
a
0
c
A
B
40 60
70°
Fig. 27-7 Wiring diagram 2-phase operation
L1
L3
L2
Fig. 27-9 2-phase operation, Hold-up time
Hold-up Time (2-Ph)
Fuse
open
L1
L2
L3
DC
PE
50ms
40
4
.
n
i
m
,
A
5
V,
8
4
.
p
y
t
,
A
5
V,
8
30
20
10
0
Input Voltage
,
V
8
4
,
V
8
4
.
p
y
t
,
A
0
1
.
i
n
m
,
A
0
1
320 360 400 440 2x480Vac
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
20/23
Q-Series
27.8. PARALLEL USE TO INCREASE OUTPUT POWER
Power supplies can be paralleled to increase the output power.
Fig. 27-10 Schematic for parallel operation
Unit A
AC
DC
Unit B
AC
DC
*)
Fuse
+
-
*)
Fuse
+
-
+
Load
-
Instructions for parallel use:
a) Use only power supplies from the same series (Q-Series). b) Adjust the output voltages of all power supplies to
approximately the same value (±500mV). Otherwise, the DC-ok signal might not work properly.
c) A fuse (or diode) on the output is only required if more
than three units are connected in parallel.
d) Keep an installation clearance of 15mm (left / right)
between two power supplies and avoid installing the power supplies on top of each other.
27.9. PARALLEL USE FOR REDUNDANCY
QT20.481
48V, 10A, THREE PHASE INPUT
Power supplies can be paralleled for redundancy to gain a higher system availability. Redundant systems require a certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put two Q-Series power supplies in parallel. This is called a 1+1 redundancy. In case one power supply unit fails, the other one is automatically able to support the load current without any interruption. Redundant systems for a higher power demand are usually built in a N+1 method. E.g. Five power supplies, each rated for 10A are paralleled to build a 40A redundant system.
Please note: This simple way to build a redundant system does not cover failures such as an internal short circuit in the secondary side of the power supply. In such a - virtually nearly impossible - case, the defect unit becomes a load for the other power supplies and the output voltage can not be maintained any more. This can only be avoided by utilizing decoupling diodes which are included in the decoupling module YR2.DIODE.
Recommendations for building redundant power systems: a) Use separate input fuses for each power supply. b) Monitor the individual power supply units. A DC-ok lamp and a DC-ok contact is already included in the units
This feature reports a faulty unit. c) When possible, connect each power supply to different phases or circuits. d) It is desirable to set the output voltages of all power supplies to the same value to avoid a false DC-ok signal.
27.10. DAISY CHAINING OF OUTPUTS
Daisy chaining (jumping from one power supply output to the next) is allowed as long as the maximum current through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block.
Fig. 27-11 Daisy chaining of outputs
max 25A!
Fig. 27-12 Using distribution terminals
+
-
+ +
- -
Power
Supply
Input
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
+ +
- -
Power
Supply
Input
+ +
Load
- -
Power Supply
Input
+ +
Power
Supply
Input
- -
Distribution Terminals
+
Load
-
21/23
Q-Series
27.11. SERIES OPERATION
The power supply can be put in series to increase the output voltage.
Fig. 27-13 Schematic for series operation
Unit A
AC
+
-
DC
Unit B
AC
DC
+
-
+
Load
-
Earth (see notes)
Instructions for use in series:
a) It is possible to connect as many units in series as needed,
providing the sum of the output voltage does not exceed 150Vdc.
b) Voltages with a potential above 60Vdc are not SELV any
more and can be dangerous. Such voltages must be installed
with a protection against touching. c) For serial operation use power supplies of the same type. d) Earthing of the output is required when the sum of the
output voltage is above 60Vdc. e) Keep an installation clearance of 15mm (left/right) between
two power supplies and avoid installing the power supplies
on top of each other.
Avoid return voltage (e.g. from a decelerating motor or
Note: battery) which is applied to the output terminals.
QT20.481
48V, 10A, THREE PHASE INPUT
27.12. INDUCTIVE AND CAPACITIVE LOADS
The unit is designed to supply any kind of load, including unlimited capacitive and inductive loads.
27.13. USE IN A TIGHTLY SEALED ENCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher than outside. The inside temperature defines the ambient temperature for the power supply.
Results from such an installation: Power supply is placed in the middle of the box, no other heat producer inside the box Enclosure: Rittal Typ IP66 Box PK 9519 100, plastic, 180x180x165mm
Load: 48V, 8A; (=80%) load is placed outside the box Input: 3x 400Vac Temperature inside enclosure: 55.1°C (in the middle of the right side of the power supply with a distance of 2cm) Temperature outside enclosure: 24.9°C Temperature rise: 30.2K
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
22/23
C
C
C
C
C
Q-Series
48V, 10A, THREE PHASE INPUT
QT20.481
Mounting Orientations Mounting orientations other than input terminals on the bottom and output on the top require a reduction in
continuous output power or a limitation in the max. allowed ambient temperature. The amount of reduction influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous operation can be found below:
Curve A1 Recommended output current. Curve A2 Max allowed output current (results approx. in half the lifetime expectancy of A1).
Fig. 27-12
Mounting Orientation A
Standard Orientation
Fig. 27-13
Mounting Orientation B (Upside down)
OUTPUT
Power
Supply
INPUT
INPUT
Supply
Power
OUTPUT
Fig. 27-14
Mounting Orientation C
(Table-top mounting)
Fig. 27-15
Mounting Orientation D
(Horizontal cw)
Supply
INPUT
OUTPUT
Power
Fig. 27-16
Mounting Orientation E
(Horizontal ccw)
OUTPUT
Power
INPUT
Supply
Output Current
10A
8 6 4 2 0
Ambient Temperature
10 20 30 40
Output Current
10A
8 6 4 2 0
Ambient Temperature
10 20 30 40
Output Current
10A
8 6 4 2 0
Ambient Temperature
10 20 30 40
Output Current
10A
8 6 4 2 0
Ambient Temperature
10 20 30 40
Output Current
10A
8 6 4 2 0
Ambient Temperature
10 20 30 40
A
1
60°
50
A
2
A
1
50
A
2
A
1
50
A
2
A
1
50
A
2
A
1
50
60°
60°
60°
60°
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
23/23
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