Puls Dimension C Series User manual

CS20.241
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
Please Note:
The CS20 series has been renamed to the CPS20 series.
CS20 units can no longer be ordered.
Attached is the original version of the CS20 datasheet.
If the current version of the CPS20 datasheet is needed, please search under the CPS20 series.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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1/1

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
POWER SUPPLY
AC 100-240V Wide-range Input
Width only 65mm
Efficiency up to 94.0%
CS20.241-A1 Conformal Coated and ATEX Approved
Excellent Partial Load Efficiency
20% Output Power Reserves
Easy Fuse Tripping due to High Overload Current
(typ. 90A for 15ms)
Active Power Factor Correction (PFC)
Minimal Inrush Current Surge
Full Power Between -25°C and +60°C
DC-OK Relay Contact
Current Sharing Feature for Parallel Use
3 Year Warranty
1/25
GENERAL DESCRIPTION
The Dimension C-Series are cost optimized power
supplies without compromising quality, reliability and
performance. The C-Series is part of the DIMENSION
power supply family. The most outstanding features of
CS20.241 are the high efficiency, electronic inrush
current limitation, active PFC, wide operational
temperature range. The small size is achieved by a
synchronous rectification and further technological
design details.
The C-Series includes all the essential basic functions.
The devices have a power reserve of 20% included,
which may even be used continuously at temperatures
up to +45°C. Additionally, the CS20.241 can deliver
about 4 times the nominal output current for 15ms
which helps to trip fuses on faulty output branches.
High immunity to transients and power surges as well as
low electromagnetic emission, a DC-OK relay contact
and a large international approval package for a variety
of applications makes this unit suitable for nearly every
situation.
SHORT-FORM DATA
Output voltage DC 24V
Adjustment range 24 - 28V
Output current 20A at 24V, amb <60°C
24A at 24V, amb <45°C
17.1A at 28V, amb <60°C
20.6A at 28V, amb <45°C
Output power 480W ambient <60°C
576W ambient <45°C
Output ripple < 50mVpp 20Hz to 20MHz
AC Input voltage AC 100-240V -15%/+10%
Mains frequency 50-60Hz ±6%
AC Input current 4.36 / 2.33A at 120 / 230Vac
Power factor 0.99 / 0.95 at 120 / 230Vac
AC Inrush current typ. 9 / 7A peak at 120 / 230Vac
Efficiency 92.7 / 94.0% at 120 / 230Vac
Losses 37.8 / 30.6W at 120 / 230Vac
Temperature range -25°C to +70°C operational
Derating 12W/°C +60 to +70°C
Hold-up time typ. 29 / 29ms at 120 / 230Vac
Dimensions 65x124x127mm WxHxD
ORDER NUMBERS
Power Supply CS20.241 24-28VStandardunit
CS20.241-A1 conformalcoatedand
ATEX approved unit
Accessory ZM2.WALL Wall mount bracket
ZM13.SIDE Side mount bracket
YR40.241Redundancymodule
YRH40.241Redundancymodule
MARKINGS
IND. CONT. E
Q.
UL 508, planed
UL 60950-1,
planed
Marine, planed
Class I Div 2
pending
ATEX
II 3G Ex nAC II Tx
pending
EMC, LVD, RoHS
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
INDEX
Page Page
1. Intended Use .......................................................3
2. Installation Requirements...................................3
3. AC-Input...............................................................4
4. DC-Input...............................................................5
5. Input Inrush Current ...........................................5
6. Output .................................................................6
7. Hold-up Time.......................................................8
8. DC-OK Relay Contact ..........................................8
9. Efficiency and Power Losses................................9
10. Reliability...........................................................10
11. Functional Diagram...........................................11
12. Terminals and Wiring........................................11
13. Front Side and User Elements...........................12
14. EMC....................................................................13
15. Environment ......................................................14
16. Protection Features ...........................................15
17. Safety Features ..................................................15
18. Dielectric Strength ............................................15
19. Approvals...........................................................16
20. Fulfilled Standards ............................................16
21. Used Substances ................................................17
22. Physical Dimensions and Weight ..................... 17
23. Accessories ........................................................ 18
23.1. ZM2.WALL - Wall Mounting Bracket.......18
23.2. ZM13.SIDE - Side Mounting Bracket........18
23.3. YR40/ YRH40 Redundancy Modules ........19
24. Application Notes............................................. 20
24.1. Peak Current Capability ...........................20
24.2. Back-feeding Loads ..................................21
24.3. External Input Protection.........................21
24.4. Output Circuit Breakers............................21
24.5. Parallel Use to Increase Output Power....22
24.6. Parallel Use for Redundancy ....................22
24.7. Daisy Chaining of Outputs .......................23
24.8. Series Operation .......................................23
24.9. Inductive and Capacitive Loads................23
24.10. Charging of Batteries ...............................24
24.11. Operation on Two Phases ........................24
24.12. Use in a Tightly Sealed Enclosure ............24
24.13. Mounting Orientations ............................25
The information presented in this document is believed to be accurate and reliable and may change without notice.
No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.
TERMINOLOGY AND ABREVIATIONS
PE and symbol PEistheabbreviationforProtective 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 Aslongasnototherwisestated,AC230Vparameters are valid at 50Hz mains frequency.
may A key word indicating flexibility of choice with no implied preference.
shall A key word indicating a mandatory requirement.
should A key word indicating flexibility of choice with a strongly preferred implementation.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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2/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
1. INTENDED USE
This device is designed for installation in an enclosure and is intended for the general professional use such as in
industrial control, office, communication, and instrumentation equipment.
Do not use this power supply in aircraft, trains, nuclear equipment or similar systems where malfunction may cause
severe personal injury or threaten human life.
This device is designed for use in hazardous (pending), non-hazardous, ordinary or unclassified locations.
2. INSTALLATION REQUIREMENTS
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.
Mount the unit on a DIN-rail so that the terminals are located on the bottom of the unit. For other mounting
orientations see de-rating requirements in this document. See chapter 24.13.
This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do
not cover ventilation grid (e.g. cable conduits) by more than 30%!
Keep the following installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are
recommended when the device is loaded permanently with more than 50% of the rated power. Increase this clearance
to 15mm in case the adjacent device is a heat source (e.g. another power supply).
WARNING Risk of electrical shock, fire, personal injury or death.
- Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input block for
earth connection and not one of the screws on the housing.
- Turn power off before working on the device. Protect against inadvertent re-powering.
- Make sure that the wiring is correct by following all local and national codes.
- Do not modify or repair the unit.
- Do not open the unit as high voltages are present inside.
- Use caution to prevent any foreign objects from entering 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 surfaces may cause burns.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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3/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
3. AC-INPUT
AC input nom. AC 100-240V suitable for TN-, TT- and IT mains networks
AC input range min. 100-264Vac continuous operation
min. 85-100Vac short term or with output derating (1%/V), see Fig. 15-1,
no damage between 0 and 100Vac
min. 264-300Vac < 500ms
Allowed voltage L or N to earth max. 264Vac continuous, IEC 62103
Input frequency nom. 50–60Hz ±6%
Turn-on voltage typ. 84Vac steady-state value, see Fig. 3-1!
Shut-down voltage typ. 39Vac steady-state value at 5A load, see Fig. 3-1
typ. 53Vac steady-state value at 10A load, see Fig. 3-1
typ. 74Vac steady-state value at 20A load, see Fig. 3-1!
AC 100V AC 120V AC 230V
Input current typ. 5.25A 4.36A 2.33A at 24V, 20A, see Fig. 3-3!
Power factor *) typ. 0.99 0.99 0.95 at 24V, 20A, see Fig. 3-4!
Crest factor **) typ. 1.5 1.5 1.65 at 24V, 20A
Start-up delay typ. 900ms 850ms 700ms see Fig. 3-2!
Rise time typ. 60ms 60ms 60ms 0mF, 24V, 20A, see Fig. 3-2!
!
!
typ. 105ms 105ms 105ms 20mF, 24V, 20A, see Fig. 3-2
Turn-on overshoot max. 200mV 200mV 200mV 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 behavior, definitions
Turn-on
85V
Rated
input range
max.
500ms
V
IN
P
OUT
300Vac264V
Shut-down
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
24A
24681012141618
0
1
2
3
4
5
6A
Output Current
Input Current, typ.
230Vac
120Vac
100Vac
20 22
Power Factor, typ.
24681012141618 24A
0.75
0.8
0.85
0.9
0.95
1.0
Output Current
230Vac
100Vac, 120Vac
20 22
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
4. DC-INPUT
Do not operate this power supply with DC-input voltage. Use the CS20.241-D1 unit instead.
5. INPUT INRUSH CURRENT
An active inrush limitation circuit 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 microseconds after switch-on.
AC 100V AC 120V AC 230V
Inrush current max. 13Apeak *) 13Apeak *) 13Apeak *)
typ. 11Apeak *) 9Apeak *) 7Apeak *)
Inrush energy max. 2A2s *) 2.5A2s *) 0.5A2s *)
Inrush delay (A) typ. 800ms 800ms 700ms see (A) in Fig. 5-1!
*) Over entire temperature range; mains interruptions > 500ms
Fig. 5-1 Input inrush current, typical behavior
Input Current
Input Voltage
A
Output Voltage
A…. Inrush delay
Input: 230Vac
Output: 24V, 20A
Ambient: 25°C
Upper curve: Input current 5A / DIV
Middle curve: Input voltage 500V / DIV
Lower curve: Output voltage 20V / DIV
Time basis: 100ms / DIV
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
6. OUTPUT
Output voltage nom. 24V
Adjustment range min. 24-28V guaranteed
max. 30V ****) at clockwise end position of potentiometer
Factory settings typ. 24.1V ±0.2%, at full load, cold unit, in “single use” mode
typ. 24.1V ±0.2%, at full load, cold unit, in “parallel use” mode
typ. 25.1V at no load, cold unit, in “parallel use” mode
Line regulation max. 10mV 85-300Vac
Load regulation max. 100mV in “single use” mode: static value, 0A å20A;
see Fig. 6-1!
!
typ. 1000mV in “parallel use” mode: static value, 0A å20A,
see Fig. 6-2
Ripple and noise voltage max. 50mVpp 20Hz to 20MHz, 50Ohm
Output current nom. 20A at 24V, ambient temperature <60°C, see Fig. 6-1!
nom. 24A *) at 24V, ambient temperature <45°C, see Fig. 6-1!
!
!
nom. 17.1A at 28V, ambient temperature <60°C, see Fig. 6-1
nom. 20.6A *) at 28V, ambient temperature <45°C, see Fig. 6-1
75A dynamic <15ms, see Fig. 6-4, Fig. 24-1 and Fig. 24-2
This peak current is available once every five seconds.
Output power nom. 480W continuously available
nom. 576W *) short term available Power Boost® *)
Overload behaviour cont. current output voltage > 13Vdc, see Fig. 6-1!
hiccup mode **) output voltage < 13Vdc, see Fig. 6-1!
!Short-circuit current min. 45A ***) load impedance 50mOhm, see Fig. 6-3
max. 55A ***) load impedance 50mOhm, see Fig. 6-3!
!
!
!
max. 25A ***) average (R.M.S.) current, load impedance <10mOhm, see
Fig. 6-3
min. 70A < 15ms, load impedance <10mOhm, see Fig. 6-4
typ. 90A < 15ms, load impedance <10mOhm, see Fig. 6-4
Output capacitance typ. 7 000µF included inside the power supply
*) Power Boost: This power/ current is continuously allowed up to an ambient temperature of 45°C.
Above 45°C, do not use this power/ current longer than a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.
**) Hiccup Mode
At heavy overloads (when output voltage falls below 13V), the power supply delivers continuous output current for 2s. After this, the
output is switched off for approx. 18s before a new start attempt is automatically performed. This cycle is repeated as long as the
overload exists. If the overload has been cleared, the device will operate normally. See Fig. 6-3.
***) 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 (in “single use” mode).
Peak current capability (up to several milliseconds)
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 24.1.
Peak current voltage dips typ. from 24V to 16V at 40A for 50ms, resistive load
typ. from 24V to 20V at 100A for 2ms, resistive load
typ. from 24V to 20.6V at 100A for 5ms, resistive load
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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6/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
Fig. 6-1 Output voltage vs. output current,
typ.
Fig. 6-2 Output voltage in “parallel use”
mode, typ.
Output Voltage (Single Use, typ.)
0
025
4
8
12
28V
16
20
24
40A155 10 20 30 35
Adjustment
Range
Output Current
Continuous
current
Factory
setting Hiccup
mode
Output Voltage (Parallel Use, typ.)
22V
0816
23V
24V
25V
29V
26V
27V
28V
24A20124
Adjustment
Range
Factory
setting
Output Current
Fig. 6-3 Short-circuit on output, hiccup mode, typ. Fig. 6-4 Dynamic overcurrent capability, typ.
Output
Current
0
55A
18s 18s18s 2s 2s2s
t
Startof
shortcircuitEndof
shortcircuit
Output Voltage (dynamic behavior, < 15ms)
0
0
4
8
12
28V
16
20
24
100A4020 60 80
Adjustment
Range
Output Current
< 15ms
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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7/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
7. HOLD-UP TIME
AC 100V AC 120V AC 230V
Hold-up Time typ. 65ms 65ms 65ms at 24V, 10A, see Fig. 7-1!
min. 54ms 54ms 54ms at 24V, 10A, see Fig. 7-1
typ. 29ms 29ms 29ms at 24V, 20A, see Fig. 7-1!
!min. 24ms 24ms 24ms at 24V, 20A, see Fig. 7-1
Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions
0
10
20
30
40
80ms
90 120 155 190 230Vac
Input Voltage
50
60
Hold-up Time
24V, 20A, typ.
24V, 10A, min.
24V, 10A, typ.
70
24V, 20A, min.
- 5%
Hold-up Time
Zero Transition
Output
Voltage
Input
Voltage
8. DC-OK RELAY CONTACT
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 level.
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 100ms. Dips shorter than 1ms will be ignored.
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 18.
Fig. 8-1 DC-ok relay contact behavior
100ms
0.9* V
ADJ
<
1ms
10%
open
V
OUT
= V
ADJ
openclosed closed
>
1ms
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
8/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
9. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 92.0% 92.7% 94.0% at 24V, 20A
typ. 91.6% 92.4% 94.0% at 24V, 24A (Power Boost)
Average efficiency *) typ. 91.3% 92.0% 93.3% 25% at 5A, 25% at 10A,
25% at 15A. 25% at 20A
Power losses typ. 6.8W 3.2W 3.2W at 24V, 0A
typ. 21.1W 20.1W 17.0W at 24V, 10A
typ. 41.7W 37.8W 30.6W at 24V, 20A
typ. 52.8W 47.4W 36.8W at 24V, 24A (Power Boost)
*) 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. 9-1 Efficiencyvs.outputcurrentat24V,
typ
Fig. 9-2 Lossesvs.outputcurrentat24V,typ.
Efficiency
468101214 1820 24A
86
87
88
89
90
91
92
93
94%
100Vac
120Vac
230Vac
Output Current
16 22
Power Losses
0 2 6 8 12 14 24A
10
0
20
30
40
60W
18 20
50
4 10 16
Output Current
22
120Vac
100Vac
230Vac
Fig. 9-3 Efficiencyvs.inputvoltageat24V,
20A, typ.
Fig. 9-4 Lossesvs.inputvoltageat24V,20A,
typ.
Efficiency
120 180 230 264Vac
89
90
91
92
Input Voltage
93
94
95%
100
Power Losses
120 180 230 264Vac
20
25
30
35
Input Voltage
40
45
50W
100
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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9/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
10. RELIABILITY
AC 100V AC 120V AC 230V
Lifetime expectancy *) 145 000h *) 150 000h *) 168 000h *) at 24V, 10A and 40°C
410 000h *) 425 000h *) 475 000h *) at 24V, 10A and 25°C
64 000h 70 000h 88 000h at 24V, 20A and 40°C
180 000h *) 198 000h *) 249 000h *) at 24V, 20A and 25°C
38 000h 46 000h 61 000h at 24V, 24A and 40°C
109 000h *) 130 000h *) 171 000h *) at 24V, 24A and 25°C
MTBF **) SN 29500, IEC 61709 T.B.D. T.B.D. T.B.D. at 24V, 20A and 40°C
T.B.D. T.B.D. T.B.D. at 24V, 20A and 25°C
MTBF **) MIL HDBK 217F T.B.D. T.B.D. T.B.D. at 24V, 20A and 40°C;
Ground Benign GB40
T.B.D. T.B.D. T.B.D. at 24V, 20A and 25°C;
Ground Benign GB25
*) The 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.
TheMTBFfigureisastatisticalrepresentationofthelikelihoodof 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.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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10/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
11. FUNCTIONAL DIAGRAM
Fig. 11-1 Functional diagram
+
+
-
-
Output
Over-
Voltage
Protection
PFC
Converter
Output
Voltage
Regulator
Power
Converter
Output
Filter
Output
Voltage
Monitor
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
Active Inrush Limiter
V
OUT
L
N
DC-ok
Contact
DC-ok
LED
Single /
Parallel
DC-ok
Relay
12. TERMINALS AND WIRING
The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.
Input and output DC-OK-Signal
Type screw terminals spring-clamp terminals
Solid wire 0.2-6mm20.15-1.5mm2
Stranded wire 0.2-4mm20.15-1.5mm2
American Wire Gauge 24-10 AWG 26-14 AWG
Wire stripping length 7mm / 0.28inch 7mm / 0.28inch
Screwdriver 3.5mm slotted or Pozidrive No 2 3.5mm slotted
Recommended tightening torque 0.8Nm, 7lb.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)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.
f) Unused terminal compartments should be securely tightened.
g)Ferrules are allowed.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
11/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
13. FRONT SIDE AND USER ELEMENTS
Fig. 13-1 Front side
AInputTerminals(screw terminals)
N,LLineinput
PE(ProtectiveEarth)input
BOutputTerminals(screw terminals, two pins per pole)
+ Positive output
–Negative (return) output
COutputvoltagepotentiometer
Open the flap to adjust the output voltage. Factory set: 24.1V
DDC-OKLED(green)
On, when the output voltage is >90% of the adjusted output voltage
EDC-OKRelayContact(quick-connect spring-clamp terminals)
The DC-OK relay contact is synchronized with the DC-OK LED.
See chapter 8for details.
F“ParallelUse”“SingleUse”selector
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. 5% higher than at nominal load. See also chapter 24.5. A missing
jumper is equal to a “Single Use” mode.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
12/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
14. EMC
The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment without any restrictions.
The CE mark indicates conformance with the EMC directive 2004/108/EC, the low-voltage directive (LVD) 2006/95/EC
and the RoHS directive 2011/65/EC. 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
Electromagnetic RF field EN 61000-4-3 80MHz-2.7GHz 10V/m Criterion A
Fast transients (Burst) EN 61000-4-4 input lines
output lines
DC-OK signal (coupling clamp)
4kV
2kV
1kV
Criterion A
Criterion A
Criterion A
Surge voltage on input EN 61000-4-5 L åN
L åPE, N åPE
2kV
4kV
Criterion A
Criterion A
Surge voltage on output EN 61000-4-5 + å-
+ / - åPE
1kV
1kV
Criterion A
Criterion A
Surge voltage on DC-OK EN 61000-4-5 DC-OK signal åPE 1kV Criterion A
Conducted disturbance EN 61000-4-6 0.15-80MHz 10V 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 C
Criterion A
Criterion A
Criterion A
Voltage interruptions EN 61000-4-11 0% of 200Vac (=0V) 5000ms Criterion C
Voltage sags SEMI F47 0706 dips on the input voltage according to SEMI F47 standard
80% of 120Vac (96Vac)
70% of 120Vac (84Vac)
50% of 120Vac (60Vac)
50% of 120Vac (60Vac)
1000ms
500ms
200ms
200ms
Criterion A
Criterion A
Criterion A (output < 14A)
Criterion C (output > 14A)
Powerful transients VDE 0160 over entire load range 750V, 1.3ms Criterion C
Criterions:
A: Power supply shows normal operation behavior within the defined limits.
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 lines
EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B
Conducted emission
output lines **)
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 limits for DC power port
according EN 61000-6-3 fulfilled
Radiated emission EN 55011, EN 55022 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 interference received, including interference that may cause undesired operation.
*) tested with constant current loads, non pulsing
**) for information only, not mandatory for EN 61000-6-3
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
13/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
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.
Switching frequency 1 80kHz PFC converter, nearly constant
Switching frequency 2 80kHz to 95kHz Main converter, input and output voltage dependent
15. ENVIRONMENT
Operational temperature *) -25°C to +70°C (-13°F to 158°F) reduce output power according Fig. 15-1!
Storage temperature -40 to +85°C (-40°F to 185°F) for storage and transportation
Output de-rating 12W/°C 60-70°C (140°F to 158°F)
Humidity **) 5 to 95% r.H. IEC 60068-2-30
Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
2 hours / axis
IEC 60068-2-6
Shock 30g 6ms, 20g 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. 15-2
IEC 62103, EN 50178, overvoltage category II
Altitude de-rating 30W/1000m or 5°C/1000m > 2000m (6500ft), see Fig. 15-2!
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 temperature and is defined as the air temperature 2cm below the unit.
**) Do not energize while condensation is present
Fig. 15-1 Output current vs. ambient temp. Fig. 15-2 Output current vs. altitude
Allowed Output Current at 24V
0
-25 0 20 40 70°C
4A
8A
12A
16A
20A
24A
60
short term
A...100 to 264Vac, continuous
B... 85Vac, continuous
B A
Ambient Temperature
0
02000m4000m
6000m
4A
8A
12A
16A
20A
24A
A...Tamb<60°C
B...Tamb<50°C
C...Tamb<40°C
B
A
C
short term
Allowable Output Current at 24V
Altitude
See chapter AC-Input for de-rating requirements for input voltages between 85Vac and 100Vac.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
14/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
16. PROTECTION FEATURES
Output protection Electronically protected against overload, no-load and short-circuits *)
Output over-voltage protection typ. 30.5Vdc
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 protection IP 20 EN/IEC 60529
Penetration protection > 5mm e.g. screws, small parts
Over-temperature protection yes Output shut-down with automatic restart
Input transient protection MOV (Metal Oxide Varistor)
Internal input fuse T10A H.B.C. not user replaceable
*) In case of a protection event, audible noise may occur.
17. SAFETY FEATURES
Input / output separation *) SELV IEC/EN 60950-1
PELV IEC/EN 60204-1, EN 50178, IEC 62103, 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
Touch current (leakage current) typ. 0.30mA / 0.74mA 100Vac, 50Hz, TN-,TT-mains / IT-mains
typ. 0.43mA / 1.08mA 120Vac, 60Hz, TN-,TT-mains / IT-mains
typ. 0.73mA / 1.70mA 230Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.38mA / 0.90mA 110Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.55mA / 1.31mA 132Vac, 60Hz, TN-,TT-mains / IT-mains
max. 0.96mA / 2.09mA 264Vac, 50Hz, TN-,TT-mains / IT-mains
*) double or reinforced insulation
18. DIELECTRIC STRENGTH
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. 18-1 Dielectric strength A B C D
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 > 15mA > 15mA > 20mA > 1mA
AD
C
B
B
N
L
Input DC-ok
Earth, PE Output
-
+
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.
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
15/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
19. APPROVALS
EC Declaration of Conformity
The CE mark indicates conformance with the
- EMC directive 2004/108/EC,
- low-voltage directive (LVD) 2006/95/EC and
- RoHS directive 2011/65/EC.
EC Declaration of Conformity
(additional for CS20.241-A1)
pending
The CE mark indicates conformance with EMC directive
2004/108/EC and the ATEX directive 94/9/EC (Equipment and
protection systems intended for use in potentially explosive
atmospheres)
IEC 60950-1
2nd Edition,
pending
CB Scheme,
Information Technology Equipment
UL 508,
pending
IND. CONT. E
Q.
Listed for use as Industrial Control Equipment;
U.S.A. (UL 508) and Canada (C22.2 No. 107-1-01);
E-File: E198865
UL 60950-1
2nd Edition,
pending
Recognized for use as Information Technology Equipment,
Level 5; U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950-1);
E-File: E137006
ANSI / ISA 12.12.01-2007
(Class I Div 2)
pending
Recognized for use in Hazardous Location Class I Div 2 T3
Groups A,B,C,D systems; U.S.A. (ANSI / ISA 12.12.01-2007) and
Canada (C22.2 No. 213-M1987)
The unit is suitable for use in Class I Division 2 Groups A, B, C, D 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.
EN 60079-15
ATEX
(CS20.241-A1 only), pending
II 3G Ex nAC II Tx
Suitable for use in Class 1 Zone 2 Groups IIa, IIb and IIc
locations. Number of ATEX certificate: EPS 09 ATEX 1 236 X
The power supply must be built-in in an IP54 enclosure.
Marine,
pending
GL (Germanischer Lloyd) classified
Environmental category: C, EMC2
Marine and offshore applications
GOST P,
pending
Certificate of Conformity for Russia and other GUS countries
20. 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, IEC 62103 Electronic Equipment in Power Installations
SEMI F47-0706 Ride-through compliance for the semiconductor industry up to 14A output current
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
16/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
21. USED SUBSTANCES
The unit does not release any silicone and is suitable for use in paint shops.
The unit conforms to the RoHS directives 2002/95/EC and 2011/65/EC.
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, Asbestos, Mercury, Silicia
22. PHYSICAL DIMENSIONS AND WEIGHT
Weight 1000g / 2.2lb
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 unit depth (127mm) to calculate the total required
installation depth.
Installation Clearances See chapter 2!
Fig. 22-1 Front view Fig. 22-2 Side view
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
17/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
23. ACCESSORIES
23.1. ZM2.WALL -WALL MOUNTING BRACKET
This bracket is used to mount the power
supply onto a flat surface without utilizing a DIN-Rail.
23.2. ZM13.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 slider of the unit have to be detached, so that the steel brackets can be mounted.
For sideway DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on
the steel bracket.
SidemountingwithDIN-railbrackets Side mounting without DIN-rail brackets
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
18/25

CS20.241, CS20.241-A1
C-Series 24V, 20A, SINGLE PHASE INPUT
Preliminary
is
cause controller failures.
23.3. YR40/ YRH40 REDUNDANCY MODULES
The YR40.241 and YRH40.241 are dual redundancy modules, which have two Mosfets as
decoupling devices
included. It can be
used for various
purposes. The most
popular application is
to configure highly
reliable and true
redundant power
supply systems.
Another interesting
application is the
separation of sensitive
loads from non-
sensitive loads. Th
avoids the distortion of the power quality for the
sensitive loads which can
I I
24V,20A
Load
YR40.241
Redundancy
Module
Output
Input
1
Input
2
+
-
+
-
+
-
L
N
PE
Failure
Monitor
L N PE
CS20.241
20A Power Supply
+ +
- -
24V, 20A
DC-
OK
Input Output
L N PE
CS20.241
20A Power Supply
+ +
- -
24V, 20A
DC-
OK
Input Output
Jan. 2012 / Rev. 0.5 DS-CS20.241-EN Preliminary
All parameters are specified at 24V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
19/25