QS40.241 Datasheet by PULS, LP

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DIMENSION I P S Y G D | s T- D o N | M DIM”: C E (SE “Q mfi:
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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1/31
P
OWER
S
UPPLY
AC 100-240V Wide-range Input
Width only 125mm, Weight only 1.9kg
94.6% Full Load and Excellent Partial Load Efficiencies
Version-C2 with Partially Conformal Coated PCB
50% BonusPower®, 1440W for up to 4s
110A High Peak Current for 10ms for Easy Fuse Tripping
Safe HiccupPLUS Overload Mode
Active PFC (Power Factor Correction)
Negligible Low Input Inrush Current Surge
Full Power Between -25°C and +60°C
Current Sharing Feature for Parallel Use
Internal Data Logging for Troubleshooting Included.
Remote Control of Output Voltage
DC-OK Relay Contact
Shut-down Input
ATEX and IECEx Approved
3 Year Warranty
G
ENERAL
D
ESCRIPTION
The most outstanding features of this Dimension
QS40.241 DIN-rail power supply are the extremely high
efficiency and the small size, which are achieved by a
synchronous rectification, a bridgeless PFC circuit and
additional unique design details.
Large power reserves of 150% and built-in large sized
output capacitors 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 emissions makes usage in nearly
every environment possible.
The integrated input fuse as well as the near zero input
inrush current make installation and usage simple.
Diagnostics are easy due to the DC-OK relay, a green
DC-OK LED and the red overload LED.
A large international approval package for a variety of
applications makes this unit suitable for nearly every
application.
S
HORT
-
FORM
D
ATA
Output voltage
nominal
Adjustment range
24 - 28Vdc
Output current
40 34.3A
continuous
short term (4s)
Output power
continuous
short term (4s)
Output ripple
< 100mVpp
20Hz to 20MHz
Input voltage
AC 100-240V
-
15%/+10%
Mains frequency
±6%
AC Input current
at 120 / 230Vac
Power factor
0.99 / 0.99
a
t 120 / 230Vac
AC Inrush current
at 120 / 230Vac
Efficiency
at 120 / 230Vac
Losses
at 120 / 230Vac
Temperature range
-25°C to +70°C
o
perational
Derating
+60 to +70°C
between 85-90Vac see chapter 18
Hold-up time
at 120 / 230Vac
Dimensions
WxHxD
Wei
ght 1900g / 4.2lb
ORDER NUMBERS
Power Supply QS40.241 24-28V Standard unit
QS40.241-C2 Partially conformal
coated
Accessory ZM2.WALL Wall mount bracket
UF20.241 Buffer unit
YR80.242 Redundancy module
YR40.245 Redundancy module
MARKINGS
UL508 UL 60950-1
Class I Div 2 Marine
PU LS I DIMENSION
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
2/31
I
NDEX
Page Page
1. Intended Use .......................................................3
2. Installation Requirements ...................................3
3. AC-Input...............................................................5
4. Input Inrush Current ...........................................6
5. DC-Input...............................................................6
6. Output .................................................................7
7. Hold-up Time .......................................................9
8. DC-OK Relay Contact ........................................ 10
9. Shut-down Input ............................................... 10
10. Remote Control of Output Voltage ................. 11
11. Internal Data Logging ....................................... 11
12. Efficiency and Power Losses.............................. 12
13. Lifetime Expectancy and MTBF ......................... 13
14. Functional Diagram ........................................... 13
15. Terminals and Wiring ........................................ 14
16. Front Side and User Elements ........................... 15
17. EMC .................................................................... 16
18. Environment ...................................................... 17
19. Protection Features ........................................... 18
20. Safety Features .................................................. 18
21. Dielectric Strength ............................................ 19
22. Approvals and Fulfilled Standards ................... 20
23. Regulatory Compliance .................................... 21
24. Physical Dimensions and Weight ..................... 22
25. Accessories ........................................................ 23
25.1. ZM2.WALL - Wall mounting bracket ....... 23
25.2. UF20.241 - Buffer module ........................ 23
25.3. YR80.242 - Redundancy Module .............. 24
25.4. YR40.245 - Redundancy Module .............. 24
26. Application Notes ............................................. 25
26.1. Repetitive Pulse Loading .......................... 25
26.2. Peak Current Capability ........................... 26
26.3. External Input Protection ......................... 26
26.4. Charging of Batteries ............................... 27
26.5. Output Circuit Breakers ............................ 27
26.6. Parallel Use to Increase Output Power .... 28
26.7. Parallel Use for Redundancy .................... 28
26.8. Series Operation ....................................... 29
26.9. Inductive and Capacitive Loads................ 29
26.10. Back-feeding Loads .................................. 29
26.11. Operation on Two Phases ........................ 30
26.12. Use in a Tightly Sealed Enclosure ............ 30
26.13. Mounting Orientations ............................ 31
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.
T
ERMINOLOGY AND
A
BREVIATIONS
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 230V 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)
230Vac A figure with the unit (Vac) at the end is a momentary figure without any additional
tolerances included.
50Hz vs. 60Hz As long as not otherwise stated, AC 230V parameters are valid at 50Hz mains frequency.
may A key word indicate flexibility of choice with no implied preference.
shall A key word indicate a mandatory requirement.
should A key word indicate flexibility of choice with a strongly preferred implementation.
PU LS I DIMENSION 1.| U 2.| R AWARNING
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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3/31
1. I
NTENDED
U
SE
This device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control,
process control, monitoring and measurement equipment or the like.
Do not use this device in equipment, where malfunctioning may cause severe personal injury or threaten human life
without additional appropriate safety devices, that are suited for the end application.
If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.
2. I
NSTALLATION
R
EQUIREMENTS
WARNING
Risk of electrical shock, fire, personal injury or death.
- Turn power off before working on the device and protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- 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.
- Do not touch during power-on, and immediately after power-off. Hot surface may cause burns.
Obey the following installation instructions:
This device may only be installed and put into operation by qualified personnel.
This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to
the factory for inspection.
Install device in an enclosure providing protection against electrical, mechanical and fire hazards. Install the device
onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the device. Other mounting
orientations require a reduction in output current.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that are
designed for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient
temperatures up to +60°C and 90°C for ambient temperatures up to +70°C. Ensure that all strands of a stranded wire
enter the terminal connection. Unused screw terminals should be securely tightened. Use ferrules for wires on the
input terminals.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against
spilled liquids.
The device is designed for overvoltage category II zones.
The device is designed as “Class of Protection I” equipment according to IEC 61140. Do not use without a proper PE
(Protective Earth) connection.
The device is suitable to be supplied from TN, TT or IT mains networks. The continuous voltage between the input
terminal and the PE potential must not exceed 276Vac.
A disconnecting means shall be provided for the input of the device.
The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not
cover ventilation grid!
The device is designed for altitudes up to 4000m (13125ft). Above 2000m (6560ft) a reduction in output current is
required.
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side.
Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device is permanently loaded with
less than 50%, the 5mm can be reduced to zero.
The device is designed, tested and approved for branch circuits up to 30A (UL) and 32A (IEC) without additional
protection device. If an external fuse is utilized, do not use circuit breakers smaller than 16A B- or C-Characteristic to
avoid a nuisance tripping of the circuit breaker.
PU LS DIMENSION
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
4/31
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the same as the ambient
or surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D locations and for use in Group II Category 3 (Zone 2)
environments.
Classification: ATEX: EPS 14 ATEX 1 638 X, II 3G EX nA nC IIC T3 Gc / IECEx EPS 14.0007X
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment.
Do not disconnect the device, operate the voltage adjustment or the S/P jumper unless power has been switched off or
the area is known to be non-hazardous.
A suitable enclosure must be provided for the end product which has a minimum protection of IP54 and fulfils the
requirements of the EN 60079-0
PU LS DIMENSION AC input nom. Ac loo-240v suitable for TN, Ti and IT mains networks AC input range 90-264Va( continuous operation 85-90Va( < sshc="" ambient="" temperature="" continuously="" allowed="" 60-85va(="" full="" power="" for="" up="" to="" 200ms="" 0-85va(="" no="" damage="" to="" the="" unit="" 254-300\/ac="">< sooms="" allowed="" voltage="" l="" or="" n="" to="" earth="" max.="" 300vac="" continuous,ch="" 62103="" lnput="" freduency="" nom.="" 50—60hz="" 26%="" turn-on="" voltage="" typ.="" 80va(="" steady-state="" value,="" load="" independent,="" see="" fig.="" 3-1="" shut-down="" voltage="" typ.="" 74vac="" steady-state="" value,="" load="" independent,="" see="" fig.="" 3-1="" external="" input="" protection="" see="" recommendations="" in="" chapter="" 25.3.="" lnput="" current="" typ.="" 10.5a="" 8.6a="" 4.5a="" at="" 24v,="" 40a,="" see="" fig.="" 3-3="" power="" factor=""> typ. 0.99 0.99 0.99 at 24v, 40A, see Fig. 3-4 Crest fador l typ. 1.47 1.53 1.56 at 24v, 40A Start-up delay typ. 800ms 750ms 700ms see Fig. 3-2 Rise time typ. 15ms 15ms 15ms at 24v, 40A, resistive load, 0mF typ. 13ms 13ms 13ms at 24v, 40A, resistive load, Turn-on overshoot max. 100mV 100mV 100mV see Fig. 3-2 J Tu rn
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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5/31
3. AC-INPUT
AC input
nom.
AC 100-240V
suitable for TN, TT and IT mains networks
AC input range
90-264Vac
continuous operation
85-90Vac
< 55°C ambient temperature continuously allowed
> 55°C ambient temperature short term or with output
derating according Fig. 18-1
60-85Vac
full power for up to 200ms
0-85Vac
no damage to the unit
264-300Vac
< 500ms
Allowed voltage L or N to earth
max.
300Vac
continuous, IEC 62103
Input frequency
nom.
5060Hz
±6%
Turn-on voltage
typ.
80Vac
steady-state value, load independent, see Fig. 3-1
Shut-down voltage
typ.
74Vac
steady-state value, load independent, see Fig. 3-1
External input protection
See recommendations in chapter 26.3.
AC 100V
AC 120V
AC 230V
Input current
typ.
10.5A
8.6A
4.5A
at 24V, 40A, see Fig. 3-3
Power factor*)
typ.
0.99
0.99
0.99
at 24V, 40A, see Fig. 3-4
Crest factor**)
typ.
1.47
1.53
1.56
at 24V, 40A
Start-up delay
typ.
800ms
750ms
700ms
see Fig. 3-2
Rise time
typ.
15ms
15ms
15ms
at 24V, 40A, resistive load, 0mF
see Fig. 3-2
typ.
18ms
18ms
18ms
at 24V, 40A, resistive load,
40mF see Fig. 3-2
Turn-on overshoot
max.
100mV
100mV
100mV
see Fig. 3-2
*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
**) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.
Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behaviour, definitions
Turn-on
85
Rated input range
V
IN
P
OUT
74 264Vac
Shut-down
80
Start-up
delay Rise
Time
Overshoot
- 5%
Output
Voltage
Input
Voltage
Fig. 3-3 Input current vs. output load at 24V Fig. 3-4 Power factor vs. output load at 24V
40A
4 8 12 16 20 24 28 32 36
0
2
4
6
8
10
12A
Output Current
Input Current, typ.
A: 100Vac
B: 120Vac
C: 230Vac
A
B
C
Power Factor, typ.
4 8 12 16 20 24 28 32 36 40A
0.75
0.8
0.85
0.9
0.95
1.0
Output Current
A: 100Vac
B: 120Vac
C: 230Vac
A
B
C
PU LS I DIMENSION 0 Input Cum-em SA IDIV HKK‘KKKKK KK WMWWWA} KK KKKK- K», n Input lKKK K K 130v“ ‘ ‘4“ K .,.,«:.K /__~._ 0“,,“ IOOmS/DKV K "W“ 5. DC-I
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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6/31
4. I
NPUT
I
NRUSH
C
URRENT
The power supply is equipped with an active inrush current limitation circuit, which limits the input inrush current
after turn-on to a negligible low value. The input current is usually smaller than the steady state input current.
AC 100V AC 120V AC 230V
Inrush current
*) max. 25Apeak 22Apeak 16Apeak over entire temperature range;
mains interruptions > 1s
typ. 20Apeak 17Apeak 11Apeak over entire temperature range;
mains interruptions > 1s
Inrush energy
max. 5A2s 5A2s 5A2s over entire temperature range;
mains interruptions > 1s
*) The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.
Fig. 4-1 Typical turn-on behaviour at nominal
load and 25°C ambient temperature
5. DC-I
NPUT
Do not operate this power supply with DC-input voltage. Check the CPS20.241-D1 unit instead. Two CPS20.241-D1
units in parallel might be necessary.
PU LS I DIMENSION 6.0
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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7/31
6. O
UTPUT
Output voltage
nom. DC 24V
Adjustment range
24-28Vdc guaranteed
max. 29Vdc****) at clockwise end position of potentiometer
Factory setting
typ. 24.1Vdc ±0.2%, at full load, cold unit, in “single use” mode
typ. 24.1Vdc ±0.5%, at full load, cold unit, in “parallel use” mode
typ. 25.1Vdc at no load, cold unit, in “parallel use” mode
Line
regulation max. 10mV 85-300Vac
Load regulation
max. 50mV in “single use” mode: static value, 0A40A, see Fig. 6-1
typ. 1000mV in “parallel use” mode: static value, 0A40A,
see Fig. 6-2
Ripple and noise voltage
max.
100mVpp
20Hz to 20MHz, 50Ohm
Output current
nom. 40A continuously available at 24V, see Fig. 6-1 and Fig. 6-2
nom. 34.3A continuously available at 28V, see Fig. 6-1 and Fig. 6-2
nom. 60A short term available BonusPower®*), at 24V
for typical 4s, see Fig. 6-1 and Fig. 6-2
nom. 51.5A short term available BonusPower®*), at 28V
for typical 4s, see Fig. 6-1 and Fig. 6-2
typ. 110A up to 10ms, output voltage stays above 20V, see Fig.
6-4, This peak current is available once every second.
See chapter 26.2 for more peak current measurements.
Output
power nom. 960W continuously available at 24-28V
nom. 1440W*) short term available BonusPower®*) at 24-28V
BonusPower
®
time
typ.
4s
duration until the output voltage dips, see Fig. 6-5
BonusPower
® recovery time typ. 7s overload free time to reset power manager, see Fig. 6-6
Overload
behaviour cont. current output voltage > 20Vdc, see Fig. 6-1
HiccupPLUS mode**) output voltage < 20Vdc, see Fig. 6-1
Short
-circuit current min. 60A***) load impedance 25mOhm, see Fig. 6-3
max.
70A
***)
load impedance 25mOhm, see Fig. 6-3
max. 23A average (R.M.S.) current, load impedance 25mOhm, see
Fig. 6-3
typ.
130A
up to 10ms, load impedance <10mOhm, see Fig. 6-4
Output capacitance
typ. 10 200µF included in the power supply
*) 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. This BonusPower® is repeatedly available. Detailed information
can be found in chapter 26.1. If the power supply is loaded longer with the BonusPower® than shown in the Bonus-time diagram (see
Fig. 6-5), the max. output power is automatically reduced to 960W. If the power requirement is continuously above 960W and the
voltage falls below approx. 20V (due to the current regulating mode at overload), the unit shuts-off and makes periodical restart
attempts. This behaviour is called hiccup mode which is described below. If the voltage is above 20V, the unit continuously delivers
current.
**) HiccupPLUS Mode
Up to 4s of overloading, the power supply delivers continuous output current. After this, the output power is reduced to nearly zero
for approx. 17s before a new start attempt is automatically performed. If the overload has been cleared, the device will operate
normally. If the overload still exists, the output current will be delivered for 2 to 4s (depending on the overload) again followed by a
17s rest time. This cycle is repeated as long as the overload exists. See Fig. 6-3. During the off period a small rest voltage and rest
current is present on the output.
***) Discharge current of output capacitors is not included.
****) This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not
guaranteed value which can be achieved. The typical value is about 28.5V.
PU LS DIMENSION ParaHe‘ USE, (pr Short of 175 aniaxTiirij ‘ ‘ 7 F , 7 T
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
8/31
Fig. 6-1 Output voltage vs. output current in
“single use” mode, typ.
Fig. 6-2 Output voltage vs. output current in
“parallel use” mode, typ.
Output Voltage
0
0 10 20 30 40
4
8
12
28V
16
20
24
60
50 70A
Output Current
Adjustment Range
Hiccup
mode
AB
A
B
Short-term (4s)
then switching
to curve
Continuously
available
A
Output Voltage (Parallel Use, typ.)
22V 0 20 40
23V
24V
25V
29V
26V
27V
28V
60A
503010
Adjustment
Range
Factory
setting
Output Current
Continuously
allowed Bonus
Power
Fig. 6-3 Short-circuit on output, HiccupPLUS mode, typ. Fig. 6-4 Dynamic overcurrent capability, typ.
Output
Current
0
65A
17s 17s
17s 2s 2s
2s
t
Short -circuit Normal
operation
Normal
operation
Output Voltage
(dynamic behavior, < 10ms)
0
0
4
8
12
28V
16
20
24
150A60
30 90 120
15 45 75 105 135
Output Current
Adjustment
Range
Fig. 6-5 Bonus time vs. output power Fig. 6-6 BonusPower® recovery time
max.
Bonus Time
0
100 120 130 140 150 170%
1
2
3
4
5s
110 160
Output Power
min.
Power
Demand
100%
t
t
Limitation by
Power Manager
Output
Voltage
Bonus Power disabled
Bonus
Time
Recovery Time
The BonusPower® is available as soon as power comes on and after the end of an output short circuit or output
overload.
Fig. 6-7 BonusPower® after input turn-on Fig. 6-8 BonusPower® after output short
100%
Output
Voltage
Input
Voltage
Bonus
Power
Output
Power
150%
Short of
Output
100%
Output
Voltage
Bonus
Power
Output
Power
150%
PU LS I DIMENSION 7.H D- T \ iffikiiierflVp/JOAAXE ,, ' ,,,,F,,,P, ,, | 7 x x w w I ‘ 7777177771777717777477 \ w ‘ ‘ | \ -—O—¢—v—v— H—D‘
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
9/31
7. H
OLD
-
UP
T
IME
AC 100V AC 120V AC 230V
Hold
-up Time typ. 54ms 54ms 54ms at 24V, 20A, see Fig. 7-1
min. 45ms 45ms 45ms at 24V, 20A, see Fig. 7-1
typ.
27ms
27ms
27ms
at 24V, 40A, see Fig. 7-1
min. 23ms 23ms 23ms at 24V, 40A, see Fig. 7-1
Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behaviour, definitions
0
10ms
20ms
30ms
40ms
60ms
90 120 155 190 230Vac
Input Voltage
50ms
Hold-up Time
24V, 40A, typ.
24V, 20A, min.
24V, 20A, typ.
24V, 40A, min.
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Input
Voltage
PU LS I DIMENSION 8. DC-OK R C
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
10/31
8. DC-OK
R
ELAY
C
ONTACT
This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back-fed
voltage from a unit connected in parallel to the power supply output.
Contact closes
As soon as the output voltage reaches 90% of the adjusted output voltage.
Contact opens
As soon as the output voltage dips more than 10% below the adjusted output voltage.
Short dips will be extended to a signal length of 250ms. Dips shorter than 1ms will be ignored.
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 21.
Fig. 8-1 DC-ok relay contact behavior
250ms
0.9* V
ADJ
<
1ms
10%
open
V
OUT
= V
ADJ
openclosed closed
>
1ms
9. S
HUT
-
DOWN
I
NPUT
This feature allows a switch-off of the output of the power supply with a signal switch or an external voltage. The
shut-down occurs immediately while the turn-on is delayed up to 350ms. In a shut-down condition, the output voltage
is <2V and the output power is <0.5W.
The voltage between different minus pole output terminals must be below 1V when units are connected in parallel. In
a series operation of multiple power supplies only wiring option “A” with individual signal switches is allowed.
Please note:
- Option C requires a current sink capability of the voltage source. Do not use a blocking diode.
- The shut-down function has no safety feature included.
Fig. 9-1 Activation of the shut-down input
15
16
OFF: linked
ON : open
Shut-
down
Input
Option A:
15
16
OFF: I > 0.3mA
ON : I < 0.1mA
Shut-
down
Input
Option B:
-
(via open
collector) I
n.c.
15
16
OFF: U < 1V
ON : U = 4 -29V
Shut-
down
Input
Option C:
-
(via external
voltage
+
U
n.c.
PU LS DIMENSION EC 10. R
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
11/31
10. R
EMOTE
C
ONTROL OF
O
UTPUT
V
OLTAGE
The shut-down input can also be used to remotely adjust the output voltage between typically 22Vdc and 28Vdc. All
other functions of shut-down input remain the same.
The control voltage is referenced to the main ground (negative output voltage)
Fig. 10-1 Remote control of the output
voltage
Fig. 10-2 Applying the control voltage
Output Voltage
12V
0V 5V
14V
16V
18V
28V
20V
22V
26V
Control Voltage
24V
10V
Potentiometer:
28V setting
24V setting
15
16
Control
Voltage
Shut-
down
Input
-
+
n.c.
Instructions:
1. Set the unit into “Single Use” mode
2. Set the output voltage adjustment (24-28V) to the maximum desired voltage.
3. Apply a control voltage to reduce the output voltage
11. I
NTERNAL
D
ATA
L
OGGING
A protected microcontroller inside the power supply acquires and stores operating data during the life of the unit. The
data can be downloaded with a small tool and special software by the PULS service and repair personnel, even when
the unit is defect. The data allows for better troubleshooting. Analysis of what happened before a failure can be
determined much more accurately.
Acquired data:
- Family name of unit (QS40), revision of firmware
- Operational hours
- Expired portion of lifetime (combination of temperature and period of time)
- Maximum ambient temperatures with timestamp (max. 47 values)
- Maximal input voltages with timestamp (max. 47 values) and type of input voltage (AC or DC)
- Failure report (various internal errors)
- Number and timestamp of input overvoltage transients
- Number and timestamp of over-temperature shut-downs
- Number of turn-on sequences
The data will be acquired with a fixed sampling rate unless the peak detectors do trigger due to an abnormal
condition. In such cases, the abnormal condition will be captured. Furthermore, data will be acquired every time
shortly before the unit switches off.
PU LS DIMENSION 12. E 7‘ 7 7 F 7 7 7 T 7 7 7 T 7 7 7 7 7 ”’\”’T”’T”’r”fi \ 7 T7 7 L ZZOVad 7+7477r7+7& 7+7&77F 7747771777+777L77J
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
12/31
12. E
FFICIENCY AND
P
OWER
L
OSSES
AC 100V AC 120V AC 230V
Efficiency
typ. 93.2% 93.6% 94.6% at 24V, 40A
Average efficiency
*) typ. 92.7% 93.0% 93.9% 25% at 10A, 25% at 20A, 25%
at 30A. 25% at 40A
Power
losses typ. 3.6W 3.5W 3.3W with activated shut-down
typ. 13.9W 13.1W 13.2W at 24V, 0A (no load)
typ. 36.1W 34.5W 30.6W at 24V, 20A (half load)
typ. 70.0W 65.6W 54.8W at 24V, 40A (full load)
*) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%
of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%
of the nominal load for the rest of the time.
Fig. 12-1 Efficiency vs. output current at 24V,
typ.
Fig. 12-2 Losses vs. output current at 24V,
typ.
Efficiency
812 16 20 24 28 32 36 40A
88
89
90
91
92
93
Output Current
94
95
96%
120Vac
100Vac
230Vac
Power Losses
0 4 8 12 16 20 24 28 40A
10
0
30
40
50
70
80W
120Vac
100Vac
230Vac
32 36
60
20
Output Current
Fig. 12-3 Efficiency vs. input voltage at 24V,
40A, typ.
Fig. 12-4 Losses vs. input voltage at 24V, 40A,
typ.
Efficiency
85 120 155 190 225 260Vac
89
90
91
92
Input Voltage
93
94
95%
Power Losses
20
30
40
50
60
70
80W
85 120 155 190 225 260Vac
Input Voltage
JEWE A MTBF DIMENSION PU LS
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
13/31
13. L
IFETIME
E
XPECTANCY AND
MTBF
AC 100V AC 120V AC 230V
Calculated lifetime
expectancy*) 288 000h*) 291 000h*) 317 000h*) at 24V, 20A and 25°C
102 000h 103 000h 112 000h at 24V, 20A and 40°C
163 000h
*)
181 000h
*)
238 000h
*)
at 24V, 40A and 25°C
57 000h 64 000h 84 000h at 24V, 40A and 40°C
MTBF
**) SN 29500, IEC 61709 491 000h 481 000h 537 000h at 24V, 40A and 25°C
274 000h 269 000h 300 000h at 24V, 40A and 40°C
MTBF
**) MIL HDBK 217F
Groun
d Benign
170 000h 171 000h 183 000h at 24V, 40A and 25°C;
Ground Benign GB25
126 000h 127 000h 137 000h at 24V, 40A and 40°C;
Ground Benign GB40
MTBF
**) MIL HDBK 217F
Ground Fixed
36 000h 36 000h 39 000h at 24V, 40A and 25°C;
Ground Fixed GF25
27 000h 27 000h 30 000h at 24V, 40A and 40°C.
Ground Fixed GF40
*) The calculated 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.
14. FUNCTIONAL DIAGRAM
Fig. 14-1 Functional diagram
+
+
-
-
V
OUT
DC-ok
Contact
Output
Over-
Voltage
Protection
Bridgeless
PFC
Converter
Input Fuse
Input Filter
Inrush Limiter
Output
Voltage
Regulator
Power
Converter
Output
Filter
DC ok
Relay
Output
Voltage
Monitor
Output
Power
Manager
Temper-
ature
Shut-
down
Overload
LED
DC-ok
LED
N
L
Single /
Parallel
Shut-down
Input &
Remote
Control
Shut-
down
13
14
15
16
Event Datalogger
PU LS I DIMENSION 15.T W
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
14/31
15. T
ERMINALS AND
W
IRING
The terminals are IP20 Finger safe constructed and suitable for field and factory wiring.
Input Output DC-OK, Shut-down
Type
screw termination screw termination spring-clamp termination
Solid w
ire 0.5-6mm2 0.5-16mm2 0.15-1.5mm2
Stranded wire
0.5-4mm2 0.5-10mm2 0.15-1.5mm2
American Wire Gauge
AWG 20-10 AWG 22-8 AWG 26-14
Max. wire
diameter 2.8mm
(including ferrules)
5.2mm
(including ferrules)
1.5mm
(including ferrules)
Wire stripping leng
th 7mm / 0.28inch 12mm / 0. 5inch 7mm / 0.28inch
Screwdriver
3.5mm slotted or
crosshead No 2
3.5mm or 5mm slotted
or crosshead No 2
3mm slotted
(to open the spring)
Recommended tightening torqu
e 1Nm, 9lb.in 2.3Nm, 20.5lb.in Not applicable
Instructions
:
a)
Use appropriate copper cables that are designed for minimum operating temperatures of:
60°C for ambient up to 45°C and
75°C for ambient up to 60°C minimum
90°C for ambient up to 70°C minimum.
b)
Follow national installation codes and installation regulations!
c)
Ensure that all strands of a stranded wire enter the terminal connection!
d
) Do not use the unit without PE connection.
e
) Unused terminal compartments should be securely tightened.
f
) Ferrules are allowed.
Daisy chaining:
Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current
through one terminal pin does not exceed 54A. If the current is higher, use a separate distribution terminal block as
shown in Fig. 15-2.
Fig. 15-1 Daisy chaining of outputs Fig. 15-2 Using distribution terminals
Load
+
-
Power
Supply
+ +
- -
Output
Power
Supply
+ +
- -
Output
max 54A!
Distribution
Terminals
Load
+
-
Power
Supply
+ +
- -
Output
Power
Supply
+ +
- -
Output
PU LS I DIMENSION 16. F S U E \> \n PULS nlMEmS‘am HI ‘0
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
15/31
16. F
RONT
S
IDE AND
U
SER
E
LEMENTS
Fig. 16-1 Front side
A Input Terminals (Screw terminals)
N, L Line input
...PE (Protective Earth) input
B Output Terminals (Screw terminals, two pins per pole)
+ Positive output
Negative (return) output
C “Parallel Use” “Single UseSelector
Set jumper to “Parallel Use” when power supplies are
connected in parallel to increase the output power. In order
to achieve a sharing of the load current between the
individual power supplies, the “parallel use” regulates the
output voltage in such a manner that the voltage at no load
is approx. 4% higher than at nominal load. See also chapter
26.6. A missing jumper is equal to a “Single Use” mode.
D Output Voltage Potentiometer
Multi turn potentiometer;
Open the flap to set the output voltage.
Factory set: 24.1V at full output current, “Single Use” mode.
E DC-OK LED (green)
On, when the voltage on the output terminals is >90% of the
adjusted output voltage
F Overload LED (red)
- On, when the voltage on the output terminals is <90% of
the adjusted output voltage, or in case of a short circuit in
the output.
- Flashing, when the shut-down has been activated or the
unit has switched off due to over-temperature.
- Input voltage is required
G DC-OK Relay Contact
The DC-OK relay contact is synchronized with the DC-OK LED.
See chapter 8 for details.
H Shut-down and Remote-Control Input
Allows the power supply to be shut down. Can be activated
with a switch contact or an external voltage.
The remote-control input allows adjusting the output
voltage between 22V and 28V. See chapter 9 and 10 for
details.
Indicators, LEDs
Overload LED DC-OK LED DC-OK Contact
Normal mode
OFF ON Closed
During BonusPower
® OFF ON Closed
Overload (
Hiccup mode) flashing OFF Open
Output short circuit
flashing OFF Open
Temper
ature Shutdown flashing OFF Open
Ac
tive Shut-down input flashing OFF Open
No input power
OFF OFF Open
PU LS I DIMENSION 17. EMC
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
16/31
17. EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment without any restrictions. A detailed EMC report is available on request.
EMC Immunity
According generic standards: EN 61000-6-1 and EN 61000-6-2
Electrostatic discharge
EN 61000-4-2 contact discharge
air discharge
8kV
15kV
Criterion A
Criterion A
Electro
magnetic RF field EN 61000-4-3 80MHz-2.7GHz 20V/m Criterion A
Fast
transients (Burst) EN 61000-4-4 input lines
output lines
signal lines (coupling clamp)
4kV
2kV
2kV
Criterion A
Criterion A
Criterion A
Surge voltage on input
EN 61000-4-5 L N
L PE, N PE
2kV
4kV
Criterion A
Criterion A
Surge voltage on output
EN 61000-4-5
+
-
+ / - PE
1kV
1kV
Criterion A
Criterion A
Surge voltage on
signal lines EN 61000-4-5 DC-OK signal PE 1kV Criterion A
EN 61000-4-5 Shut-down input PE not relevant due to wire length **)
Conducted dist
urbance EN 61000-4-6 0.15-80MHz 20V Criterion A
Mains voltage dips
EN 61000-4-11
0% of 100Vac
40% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac
0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms
Criterion A
Criterion C
Criterion A
Criterion A
Criterion A
Criterion A
Voltage interruptions
EN 61000-4-11
0% of 200Vac (=0V)
5000ms
Criterion C
Vol
tage sags SEMI F47 dips on the input voltage according to SEMI F47 standard
80% of 120Vac (96Vac)
70% of 120Vac (84Vac)
50% of 120Vac (60Vac)
1000ms
500ms
200ms
Criterion A
Criterion A
Criterion A
Powerful transients
VDE 0160 over entire load range 750V, 1.3ms Criterion B*)
*) Criterion A is fulfilled for output current up to 30A.
**) Do not use longer wires than 30m for the shut-down input or use an additional protection.
Criterions:
A: Power supply shows normal operation behavior within the defined limits.
B: Output voltage will dip from 24V to 21V for 5ms
C: Temporary loss of function is possible. Power supply may shut down and restarts by itself. No damage or hazards for the power supply
will occur.
EMC Emission
According generic standards: EN 61000-6-3 and EN 61000-6-4
Conducted emission
input lin
es
EN 55011, EN 55032, FCC Part 15, CISPR 11,
CISPR 32
Class B
C
onducted emission
output lines
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 10dB higher than average limits for DC
power port according EN 61000-6-3***)
R
adiated emission EN 55011, EN 55032 Class B
Harmonic input current
EN 61000-3-2
fulfilled for class A equipment
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 inte
rference received, including interference that may cause undesired operation.
**) Tested with constant current loads, non pulsing
***) Restrictions apply for applications in residential, commercial and light-industrial environments, where local DC power networks according
to EN 61000-6-3 are involved. No restrictions for all kinds of industrial applications.
PU LS 18.
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
17/31
Switching
Frequencies The power supply has four converters with four different switching frequencies included.
One is nearly constant. The others are input voltage and load dependent.
Swi
tching frequency 1 105kHz Resonant converter, nearly constant
Switching frequency 2
1kHz to 150kHz Boost converter, input voltage and load dependent
Switch
ing frequency 3 1kHz to 100kHz PFC converter, input voltage and load dependent
Switching frequency
4 25kHz to 45kHz Aux. converter, input voltage and load dependent
18. E
NVIRONMENT
Operationa
l temperature*) -25°C to +70°C (-13°F to 158°F) reduce output power according Fig. 18-1
Storage temperature
-40 to +85°C (-40°F to 185°F) for storage and transportation
Output de-rating
24W/°C
60-70°C (140°F to 158°F)
Humidi
ty**) 5 to 95% r.H. IEC 60068-2-30
Vibration s
inusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 1g ***)
2 hours / axis
IEC 60068-2-6
Shock
15g 6ms, 10g 11ms ***)
3 bumps / direction, 18 bumps in total
IEC 60068-2-27
Altitude
0 to 2000m (0 to 6 560ft) without any restrictions
2000 to 6000m (6 560 to 20 000ft) reduce output power or ambient temperature,
see Fig. 18-2
IEC 62103, EN 50178, overvoltage category II
Altitude de
-rating 60W/1000m or 5°C/1000m > 2000m (6500ft), see Fig. 18-2
Over
-voltage category III IEC 62103, EN 50178, altitudes up to 2000m
II altitudes from 2000m to 6000m
Degree of pollution
2 IEC 62103, EN 50178, not conductive
*) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below the
unit.
**) Do not energize while condensation is present.
***) Higher levels allowed when using the wall mounting bracket ZM2.WALL
Fig. 18-1 Output current vs. ambient temp. Fig. 18-2 Output current vs. altitude
Allowed Output Current at 24V
0
-25 0 20 40 70°C
10
20
30
40
50
60A
60
Ambient Temperature
A
B
A... 90-264Vac
B... 85-90Vac
continuous
for typ. 4s
Allowed Output
Current at 24V
0
02000 4000 6000m
10
20
30
40
50
60A
continuous
Altitude
for typ. 4s
A... Tamb < 60°C
B... Tamb < 50°C
C... Tamb < 40°C
ABC
PU LS I DIMENSION 19. P F 20. S F
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
18/31
19. P
ROTECTION
F
EATURES
Output
protection Electronically protected against overload, no-load and short-circuits*)
Output over
-voltage protection typ. 30Vdc
max. 32Vdc
In case of an internal power supply defect, a redundant
circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.
Degree of protecti
on IP 20 EN/IEC 60529
Caution: For use in a controlled environment according
to CSA 22.2 No 107.1-01.
Pen
etration protection > 5mm e.g. screws, small parts
Over
-temperature protection yes Output shutdown with automatic restart
Input transient protectio
n MOV (Metal Oxide Varistor)
Internal input fu
se included not user replaceable
*) In case of a protection event, audible noise may occur.
20. S
AFETY
F
EATURES
Input / ou
tput separation*) SELV IEC/EN 60950-1
PELV IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41
double or reinforced insulation
C
lass of protection I PE (Protective Earth) connection required
Isolation resistance
> 100MOhm input to output, 500Vdc
PE
resistance < 0.1Ohm
To
uch current (leakage current) typ. 0.39mA / 1.0mA 100Vac, 50Hz, TN-,TT-mains / IT-mains
typ. 0.56mA / 1.43mA 120Vac, 60Hz, TN-,TT-mains / IT-mains
typ. 0.90mA / 2.25mA 230Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.50mA / 1.21mA
110Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.71mA / 1.73mA 132Vac, 60Hz, TN-,TT-mains / IT-mains
max. 1.18mA / 2.82mA 264Vac, 50Hz, TN-,TT-mains / IT-mains
*) double or reinforced insulation
PU LS I DIMENSION 21.D CS 69 T I M
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
19/31
21. D
IELECTRIC
S
TRENGTH
The output voltage is floating and has no ohmic connection to the ground. Type and factory tests are conducted by
the manufacturer. Field tests may be conducted in the field using the appropriate test equipment which applies the
voltage with a slow ramp (2s up and 2s down). Connect all input-terminals together as well as all output poles before
conducting the test. When testing, set the cut-off current settings to the value in the table below.
Fig. 21-1 Dielectric strength A B C D
AD
C
B
B
*)
L
Input DC-ok
13
14
Earth, PE Output
15/16
+/-
Shut-down
N
Type test 60s 2500Vac 3000Vac 500Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac 500Vac
Field test 5s 2000Vac 2000Vac 500Vac 500Vac
Cut-off current setting > 20mA > 20mA > 40mA > 1mA
To fulfil 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 when unnoticed earth
faults occur.
B*) When testing input to DC-OK ensure that the max. voltage between DC-OK and the output is not exceeded (column D). We recommend
connecting DC-OK pins and the output pins together when performing the test.
PU LS I DIMENSION 22. A F S C ® IIS lISTED IECEE CB SCHEME a“ US <83) e@="" us="" dnv-gl="" w="" abs="" corros="" io="" n="" iec="" 6006872760="" method="" a="" v="">
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
20/31
22. A
PPROVALS AND
F
ULFILLED
S
TANDARDS
UL 508
UL Certificate
Listed equipment for category NMTR - Industrial Control
Equipment
Applicable for US and Canada
E-File: E198865
IEC 60950
-1
CB Scheme Certificate
General safety requirements for Information Technology
Equipment (ITE)
UL 60950
-1
UL Certificate
Recognized component for category QQGQ - Information
Technology Equipment (ITE)
Applicable for US and Canada
E-File: E137006
ATEX
Agency Certificate (Bureau Veritas)
EN 60079-0 Explosive atmospheres - General requirements
EN 60079-7, EN 60079-15 Equipment protection by type
of protection "e" and "n"
Certificate: EPS 14 ATEX 1 638 X
Temperature Code: T4
Type of Protection: nA nC
IECEx
IECEx Certificate
IEC 60079-0 Explosive atmospheres - General requirements
IEC 60079-7, IEC 60079-15 Equipment protection by type
of protection "e" and "n"
Certificate: IECEx EPS 14.0007 X
Temperature Code: T4
Type of Protection: nA nC
Class I Div 2
CSA Certificate
Power Supplies for Hazardous Location
Applicable for Canada and US
CSA Class: 5318-01 (Canada), 5318-81 (USA)
Temperature Code: T4
Groups: A, B, C and D
M
arine (DNV GL)
DNV-GL Certificate
DNV-GL Type approved product
Certificate: TAA00002JT
Temperature: Class D
Humidity: Class B
Vibration: Class C
EMC: Class A
Enclosure: Class A
M
arine (ABS)
ABS Design Assessment Certificate
ABS (American Bureau of Shipment) assessed product
Certificate: 17-HG1599236-PDA
I
EC 60068-2-60
Manufacturer's Declaration (Online Document)
Environmental Tests, Flowing Mixed Gas Corrosion Test
Test Ke - Method 4
H2S: 10ppb
NO2: 200ppb
Cl2: 10ppb
SO2: 200ppb
Test Duration: 3 weeks, which simulates a service life of at least
10 years
PU LS DIMENSION Corrosion G3-lSA-71.04 LABS VDMA 243BArC1rL/W 23. R CE REACH \/ [H[
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
21/31
ISA
-71.04-1985
Manufacturer's Declaration (Online Document)
Airborne Contaminants Corrosion Test
Severity Level: G3 Harsh
H2S: 100ppb
NOx: 1250ppb
Cl2: 20ppb
SO2: 300ppb
Test Duration: 3 weeks, which simulates a service life of at least
10 years.
VDMA
24364
Paint Wetting Impairment Substances Test (or LABS-Test)
Tested for Zone 2 and test class C1 according to VDMA 24364-
C1-L/W for solvents and water-based paints
23. R
EGULATORY
C
OMPLIANCE
E
U Declaration of
Conformity
The CE mark indicates conformance with the
- EMC directive
- Low-voltage directive (LVD)
- RoHS directive
R
EACH Directive
Manufacturer's Statement
EU-Directive regarding the Registration, Evaluation,
Authorization and Restriction of Chemicals
EAC TR Registratio
n
Registration for the Eurasian Customs Union market
(Russia, Kazakhstan, Belarus)
PU LS DIMENSION 24. P gym/n] DC 0k 0 Uvenoad 0 Dacm' fig 5sz » u down E a N L FE + + _ _ ._. an 19 1 75A 405 Width' 125mm A 92“ Heig M: 124mm, 4.88" Deplh:127mm, 5.0" DlNrRail depth
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
22/31
24. P
HYSICAL
D
IMENSIONS AND
W
EIGHT
Width
125mm 4.92’’
Height
124mm 4.88’’
Depth
127mm 5.0’’
The DIN-rail height must be added to the unit depth to calculate the total required
installation depth.
We
ight 1900g / 4.2lb
DIN
-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Housing material
Aluminium body, steel cover
Installation clearances
See chapter 2
Fig. 24-1 Front view Fig. 24-2 Side view
PU LS I DIMENSION 25. A
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
23/31
25. A
CCESSORIES
25.1. ZM2.WALL - WALL MOUNTING BRACKET
This bracket is used to mount specific DIMENSION units onto a flat surface without
utilizing a DIN-Rail.
25.2. UF20.241 - BUFFER MODULE
This buffer unit is a supplementary device for DC 24V power supplies. It delivers power to bridge typical mains failures
or extends the hold-up time after turn-off
of the AC power. In times when the power
supply provides sufficient voltages, the
buffer unit stores energy in integrated
electrolytic capacitors. In case of mains
voltage fault, this energy is released again
in a regulated process. One buffer module can deliver 20A. To buffer the full output
current of 40A, two buffer modules are needed in parallel.
The buffer unit does not require any control wiring. It can be added in parallel to
the load circuit at any given point. Buffer units can be added in parallel to increase
the output ampacity or the hold-up time.
DC
Buffer
Unit(s)
Power
Supply Load
AC
+
-
PU LS DIMENSION
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
24/31
25.3. YR80.242 - REDUNDANCY MODULE
The YR80.242 is equipped with two input channels (40A each), which are individually
decoupled by utilizing mosfet technology. The output current can go as high as 80A. Using
mosfets instead of diodes reduces the heat generation and the voltage drop between input
and output. The YR80.242 does not require an additional auxiliary voltage and is self-
powered even in case of a short circuit across the output.
Due to the low power losses, the unit is very slender and only requires 46mm width on the
DIN-rail.
25.4. YR40.245 - REDUNDANCY MODULE
The YR40.245 is a 40A single channel redundancy module, which is equipped with a plug
connector on the output. The plug connector allows replacing the power supply or the
redundancy module while the system is running. The plug connector avoids that the output
wires can touch and short the load circuit.
The YR40.245 is very slender and only requires 46mm width on the DIN-rail. It also utilizes
mosfets technology instead of diodes for low heat generation and a minimal voltage drop
between input and output. It does not require an additional auxiliary voltage and is self-
powered even in case of a short circuit across the output.
Fig. 25-1 Typical 1+1 Redundant configuration for
40A with a dual redundancy module
Fig. 25-2 Typical N+1 or 1+1 Redundant configuration for 40A with
multiple YR40.245 redundancy modules
YR80.242
*)
Redundancy
Module
+
-
+
-
Input
1
Input
2
Output
L N PE + +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
L N PE + +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
24V
40A
Load
Failure
Monitor
*)
YR80.241
also possible
L
N
PE
II
L N PE
+ +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
L N PE
+ +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
YR40.245
Redundancy
Module
+
-
Input
Output
+
-
YR40.245
Redundancy
Module
+
-
Input
Output
+
-
L
N
PE
II
24V
40A
Load
Failure
Monitor
PU LS DIMENSION 26. A NES
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
25/31
26. A
PPLICATION
N
OTES
26.1. REPETITIVE PULSE LOADING
Typically, a load current is not constant and varies over time. This power supply is designed to support loads with a
higher short-term power demand (=BonusPower®). The short-term duration is hardware controlled by an output
power manager and is available on a repeated basis. If the BonusPower® load lasts longer than the hardware
controller allows it, the output voltage will dip and the next BonusPower® is available after the BonusPower® recovery
time (see chapter 6) has elapsed.
To avoid this, the following rules must be met:
a) The power demand of the pulse must be below 150% of the nominal output power.
b) The duration of the pulse power must be shorter than the allowed BonusPower® 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 period of time. Use the
maximum duty cycle curve (Fig. 26-2) to check if the average output current is below the nominal current.
d) The duty cycle must be below 0.75.
Fig. 26-1 Repetitive pulse loads, definitions Fig. 26-2 Max. duty cycle curve
100%
P
PEAK
T
PEAK
P
0
T
0
max.
150%
150%100
0
0.2
0.4
0.6
0.75
Duty Cycle
110 120 130 140
P
PEAK
P
0
= 10%
P
0
= 50%
P
0
= 75%
P
0
= 100%
P0 Base load (W)
PPEAK Pulse load (above 100%)
T0 Duration between pulses (s)
TPEAK Pulse duration (s)
D
uty
C
ycle
T
0
= T
peak
-
(D
uty
C
ycle
x T
peak
)
T
peak +
T
0
T
peak
D
uty
C
ycle
=
Example: A load is powered continuously with 480W (= 50% of the rated output load). From time to time a peak
power of 1440W (= 150% of the rated output load) is needed for 1 second.
The question is: How often can this pulse be supplied without overloading the power supply?
- Make a vertical line at PPEAK = 150% and a horizontal line where the vertical line crosses the P0 = 50%
curve. Read the max. duty cycle from the duty cycle-axis (= 0.37)
- Calculate the required pause (base load) length T0:
- Result: The required pause length = 1.7s
- Max. repetition rate = pulse +pause length = 2.7s
More examples for pulse load compatibility:
PPEAK P0 TPEAK T0 PPEAK P0 TPEAK T0
1440W 960W 1s >25s 1440W 480W 0.1s >0.16s
1440W
0W
1s
>1.3s
1440W
480W
1s
>1.6s
1200W 480W 1s > 0.75s 1440W 480W 3s >4.9s
D
uty
C
ycle
T
0
=T
peak
-
(D
uty
C
ycle
x T
peak
)
0.37
1s
-
(0.37 x 1s)
= =1.7s
PU LS DIMENSION " Oumm " 24v vutsge 24v Output ‘ *7 Wm 97 /1§.8v Oulpm Output 0A WCunem 0A Current films/UN 1m ‘DIV
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
26/31
26.2. PEAK CURRENT CAPABILITY
The power supply can deliver peak currents (up to several milliseconds) which are higher than the specified short-term
currents.
This helps to start current demanding loads. 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 BonusPower®). The same situation applies when
starting a capacitive load.
The peak current capability also ensures the safe operation of subsequent circuit breakers of load circuits. The load
branches are often individually protected with circuit breakers or fuses. In case of a short or an overload in one branch
circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. This avoids
voltage loss in adjacent circuits.
The extra current (peak current) is supplied by the power converter and the built-in large sized output capacitors of
the power supply. The capacitors get discharged during such an event, which causes a voltage dip on the output. The
following two examples show typical voltage dips:
Fig. 26-3 Peak load with 2x the nominal
current for 50ms, typ.
Fig. 26-4 Peak load with 5x the nominal
current for 5ms, typ.
80A Peak load (resistive) for 50ms
Output voltage dips from 24V to 18.9V. 200A Peak load (resistive) for 5ms
Output voltage dips from 24V to 13.8V.
Please note: The DC-OK relay triggers when the voltage dips more than 10% for longer than 1ms.
Peak
current voltage dips typ. from 24V to 18.9V at 80A for 50ms, resistive load
typ. from 24V to 15.9V at 200A for 2ms, resistive load
typ. from 24V to 13.8V at 200A for 5ms, resistive load
26.3. EXTERNAL INPUT PROTECTION
The unit is tested and approved for branch circuits up to 30A (U.S.A.) and 32A (IEC). An external protection is only
required if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In
some countries local regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of
the circuit breaker. A minimum value of 16A B- or C-Characteristic breaker should be chosen, when the unit is used at
AC100 and AC120V mains voltages (including AC 230V). If the unit is used only at AC 230V mains, a 10A B- or C-
Characteristic breaker is sufficient.
PU LS DIMENSION
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
27/31
26.4. CHARGING OF BATTERIES
The power supply can be used to charge lead-acid or maintenance free batteries. (Two 12V batteries in series)
Instructions for charging batteries:
a) Set output voltage (measured at no load and at the battery end of the cable) very precisely to the end-of-charge
voltage.
End-of-charge voltage 27.8V 27.5V 27.15V 26.8V
Battery temperature 10°C 20°C 30°C 40°C
b) Use a 50A or 63A 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 (battery discharge current) is typ. 35mA when the power supply is
switched off (except in case a blocking diode is utilized).
26.5. OUTPUT CIRCUIT BREAKERS
Standard miniature circuit breakers (MCB’s or UL1077 circuit breakers) are commonly used for AC-supply systems and
may also be used on DC branches.
MCB’s are designed to protect wires and circuits. If the ampere value and the characteristics of the MCB are adapted to
the wire size that is used, the wiring is considered as thermally safe regardless of whether the MCB opens or not.
To avoid voltage dips and under-voltage situations in adjacent 24V branches which are supplied by the same source, a
fast (magnetic) tripping of the MCB is desired. A quick shutdown within 10ms is necessary corresponding roughly to
the ride-through time of PLC's. This requires power supplies with high current reserves and large output capacitors.
Furthermore, the impedance of the faulty branch must be sufficiently small in order for the current to actually flow.
The best current reserve in the power supply does not help if Ohm’s law does not permit current flow. The following
table has typical test results showing which B- and C-Characteristic MCBs magnetically trip depending on the wire cross
section and wire length.
Fig. 26-5 Test circuit Maximal wire length*) for a fast (magnetic) tripping:
MCB
Power Supply
AC
DC
+
-
+
-
Load
Wire length
S1... Fault simulation switch
S1
0.75mm²
1.0mm²
1.5mm²
2.5mm²
C-2A 29m 38m 54m 86m
C-3A 27m 34m 48m 78m
C-4A
19m 26m 38m 58m
C-6A 10m 15m 21m 34m
C-8A 8m 12m 18m 28m
C-10A 7m 11m 16m 26m
C-13A 4m 6m 8m 13m
B-6A 19m 25m 35m 55m
B-10A 11m 17m 24m 40m
B-13A 10m 13m 21m 29m
B-16A 7m 11m 15m 24m
B-20A 5m 7m 9m 16m
*) Don’t forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and wire).
PU LS DIMENSION
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
28/31
26.6. PARALLEL USE TO INCREASE OUTPUT POWER
Power supplies from the same series (Q-Series) can be paralleled to increase
the output power. The output voltage shall be adjusted to the same value
(±100mV) in “Single use” mode with the same load conditions on all units, or
the units can be left with the factory settings. After the adjustments, the
jumper on the front of the unit shall be moved from “Single use” to “Parallel
use”, in order to achieve load sharing. The “Parallel use” mode regulates the
output voltage in such a manner that the voltage at no load is approx. 4%
higher than at nominal load. See also chapter 6. If no jumper is plugged in, the
unit is in “Single use” mode. Factory setting is also “Single use” mode.
If more than three units are connected in parallel, a fuse or circuit breaker with a rating of 50A or 63A is required on
each output. Alternatively, a diode or redundancy module can also be utilized.
Energize all units at the same time to avoid the overload HiccupPLUS mode. It also might be necessary to cycle the input
power (turn-off for at least five seconds), if the output was in HiccupPLUS mode due to overload or short circuits and the
required output current is higher than the current of one unit.
Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other. Do not use power supplies in parallel in mounting orientations other than the standard
mounting orientation (terminals on the bottom of the unit) or in any other condition where a derating of the output
current is required (e.g. altitude, above 60°C, …).
Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.
26.7. PARALLEL USE FOR REDUNDANCY
Power supplies can be paralleled for redundancy to gain 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
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 40A are paralleled to build a 160A
redundant system. For N+1 redundancy the same restrictions apply as for increasing the output power, see also
chapter 26.6.
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 case, the defective unit becomes a load for the other power supplies
and the output voltage can not be maintained any more. This can be avoided by utilizing redundancy modules, which
have decoupling devices (diodes or mosfets) included. Further information and wiring configurations can be found in
chapter 25.3 and 25.4.
Recommendations for building redundant power systems:
a) Use separate input fuses for each power supply. A separate source for each supply when possible increases the
reliability of the redundant system.
b) Set the power supply into “Parallel Use” mode.
c) Monitor the individual power supply units. Therefore, use the DC-OK relay contact of the QS40 power supply.
d) It is desirable to set the output voltages of all units to the same value (± 100mV) or leave it at the factory setting.
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
PU LS DIMENSION
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
29/31
26.8. SERIES OPERATION
Power supplies of the same type can be connected in series for higher
output voltages. It is possible to connect as many units in series as needed,
providing the sum of the output voltage does not exceed 150Vdc. Voltages
with a potential above 60Vdc are not SELV anymore and can be dangerous.
Such voltages must be installed with a protection against touching.
Earthing of the output is required when the sum of the output voltage is
above 60Vdc.
Avoid return voltage (e.g. from a decelerating motor or battery) which is
applied to the output terminals.
Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other. Do not use power supplies in series in mounting orientations other than the standard
mounting orientation (terminals on the bottom of the unit).
Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.
26.9. INDUCTIVE AND CAPACITIVE LOADS
The unit is designed to supply any kind of loads, including capacitive and inductive loads. If extreme large capacitors,
such as EDLCs (electric double layer capacitors or “UltraCaps”) with a capacitance > 2.5F are connected to the output,
the unit might charge the capacitor in the HiccupPLUS mode (see chapter 6).
26.10. 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. (Electro 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 35Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 6.
Unit A
AC
DC
Unit B
AC
DC
-
+
-
+
Load
+
-
Earth
(see notes)
PU LS DIMENSION L1 L2 Power Supp‘y ‘.|._|
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
30/31
26.11. OPERATION ON TWO PHASES
The power supply can also be used on two-phases of a three-phase-system.
Such a phase to phase connection is allowed as long as the supplying voltage
is below 240V+10%.
26.12. 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. In such situations, the inside temperature defines the ambient temperature for the power supply.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
The power supply is placed in the middle of the box, no other heat producing items are inside the box
Enclosure: Rittal Typ IP66 Box PK 9522 100, plastic, 254x180x165mm
Load: 24V, 32A; (=80%) load is placed outside the box
Input: 230Vac
Temperature inside enclosure: 68.6°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside enclosure: 24.3°C
Temperature rise: 44.3K
240V
+10%
max.
L2
L1
L3
L
N
PE
Power Supply
AC
DC
internal
fuse
]] DIMENSION orienmion A Muunling orienmion a Muunling orienmion c Muunling Muunling orienmion E
QS40.241, QS40.241-C2
Q-Series 24V, 40A, SINGLE PHASE INPUT
Dez. 2020 / Rev. 1.3 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
31/31
26.13. MOUNTING ORIENTATIONS
Mounting orientations other than all terminals on the bottom require a reduction in continuous output power or a
limitation in the maximum 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 in approximately half the lifetime expectancy of A1).
Fig. 26-6
Mounting
Orientation A
(Standard
orientation)
Power
Supply
OUTPUTINPUT
Output Current
0
10 20 30 40 60°C
10
20
30
40A
50
A1
Ambient Temperature
Fig. 26-7
Mounting
Orientation B
(Upside down)
Power
Supply
OUTPUTINPUT
Output Current
0
10 20 30 40 6C
10
20
30
40A
50
A2
Ambient Temperature
A1
Fig. 26-8
Mounting
Orientation C
(Table-top
mounting)
Output Current
0
10 20 30 40 60°C
10
20
30
40A
50
Ambient Temperature
A1
A2
Fig. 26-9
Mounting
Orientation D
(Horizontal cw)
Power
Supply
OUTPUT
INPUT
Output Current
0
10 20 30 40 6C
10
20
30
40A
50
Ambient Temperature
A1
A2
Fig. 26-10
Mounting
Orientation E
(Horizontal ccw)
Power
Supply
OUTPUTINPUT
Output Current
0
10 20 30 40 6C
10
20
30
40A
50
Ambient Temperature
A1
A2

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