Puls Dimension CP Series User manual

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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REDUNDANCY POWER SUPPLY
▪AC 100-240V Wide-range Input
▪Width only 48mm
▪Built-in Decoupling Mosfet for 1+1 and N+1 Redundancy
▪Efficiency up to 95.2%
▪20% Output Power Reserves (PowerBoost)
▪Safe HiccupPLUS Overload Mode
▪Easy Fuse Breaking–3 times nominal current for 12ms
▪Active Power Factor Correction (PFC)
▪Minimal Inrush Current Surge
▪Full Power Between -40°C and +60°C
▪DC-OK Relay Contact
▪Current Sharing Feature Included
▪3 Year Warranty
PRODUCT DESCRIPTION
The Dimension CP-Series are cost optimized power supplies
without compromising quality, reliability and performance. The
most outstanding features of the CP20.241–R1/-R2 units are the
high efficiency, electronic inrush current limitation, active PFC,
wide operational temperature range and the extraordinary small
size. The units include a decoupling MOSFET for building 1+1 or
N+1 redundant power supply systems. The devices also offer
PowerBoost: Power reserves of 20%, which may even be used
continuously at temperatures up to +45°C.
These redundancy power supplies come with three connection
terminal options; screw terminals, spring-clamp terminals or
plug connector terminals which allows replacement on an active
application.
CP20.242-R2 version feature an enhanced DC input voltage
range and the CP20.241-R2-C1 is additionally equipped with
conformal coated pc-boards.
With high immunity to transients and power surges, low
electromagnetic emission, a DC-OK signal contact for remote
monitoring, and a large international approval package, makes
this unit suitable for nearly every application.
SHORT-FORM DATA
Output voltage
DC 24V
Nominal
Adjustment range
-
Output current
20A
Up to +60°C ambient
15A
At +70°C ambient
Derate linearly between +60°C and +70°C
PowerBoost
24A
Up to +45°C ambient
Linear decrease to nominal power between
+45°C and +60°C
AC Input voltage
AC 100-240V
-15%/+10%
Mains frequency
50-60Hz
±6%
AC Input current
4.28 / 2.25A
At 120 / 230Vac
Power factor
0.99 / 0.98
At 120 / 230Vac
Input voltage DC
DC 110-150V±20%
For CP20.241-xx
DC 110-300V±20%
For CP20.242-xx
Input current DC
4.64A / 1.66A
At 110 / 300Vdc
AC Inrush current
10 / 4.5Apk
At 120 / 230Vac
Efficiency
93.8 / 95.2%
At 120 / 230Vac
Losses
31.7 / 24.2W
At 120 / 230Vac
Hold-up time
32 / 32ms
At 120 / 230Vac
Temperature range
-40°C to +70°C
Size (w x h x d)
48x124x127mm
Without DIN-rail and
plug connectors
Weight
830g
CP20.241-R1
850g
CP20.24x-R2
ORDER NUMBERS
Power Supplies
CP20.241-R1 With quick-connect spring-clamp
terminals
CP20.241-R2 With hot swappable plug
connectors (preferred item)
CP20.242-R2 Enhanced DC-Input
CP20.241-R2-C1 With conformal coated pc boards
Accessory
ZM10.WALL Wall/panel mount bracket
MAIN APPROVALS
For details or a complete approval list see chapter 20.
UL 61010-2-201

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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INDEX
Page Page
1. Intended Use................................................................4
2. Installation Requirements............................................4
3. AC-Input .......................................................................6
4. DC-Input .......................................................................7
5. Input Inrush Current.....................................................8
6. Output..........................................................................9
7. Hold-up Time..............................................................10
8. DC-OK Relay Contact..................................................11
9. Efficiency and Power Losses.......................................12
10. Lifetime Expectancy ...................................................13
11. MTBF ..........................................................................13
12. Functional Diagram ....................................................14
13. Terminals and Wiring .................................................15
14. Replacing Units while the System is Running.............16
15. Front Side and User Elements ....................................17
16. EMC............................................................................18
17. Environment...............................................................19
18. Safety and Protection Features..................................20
19. Dielectric Strength ..................................................... 21
20. Approved, Fulfilled or Tested Standards.................... 22
21. Regulatory Product Compliance ................................ 23
22. Physical Dimensions and Weight ............................... 24
23. Accessories................................................................. 26
23.1. ZM10.WALL - Wall/Panel Mount Bracket......... 26
24. Application Notes....................................................... 27
24.1. Peak Current Capability.................................... 27
24.2. Adjusting the Output Voltage........................... 28
24.3. Charging of Batteries........................................ 29
24.4. Output Circuit Breakers.................................... 29
24.5. Series Operation............................................... 30
24.6. Parallel Use to Increase Output Power ............ 30
24.7. Parallel Use for Redundancy ............................ 31
24.8. Operation on Two Phases ................................ 32
24.9. Use in a Tightly Sealed Enclosure..................... 32
24.10. Mounting Orientations..................................... 33
The information given in this document is correct to the best of our knowledge and experience at the time of publication. If not
expressly agreed otherwise, this information does not represent a warranty in the legal sense of the word. As the state of our
knowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask you
to always use the latest issue of this document.
No part of this document may be reproduced or utilized in any form without our prior permission in writing.

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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TERMINOLOGY AND ABREVIATIONS
PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .
Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.
t.b.d. To be defined, value or description will follow later.
AC 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 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.
1+1 Redundancy Use of two identical power supplies in parallel to provide continued operation following most failures in a
single power supply. The two power supply outputs should be isolated from each other by utilizing diodes or
other switching arrangements. E.g. two 20A power supplies are needed to achieve a 20A redundant system.
N+1 Redundancy Use of three or more identical power
supplies in parallel to provide
continued operation following most
failures in a single power supply. All
power supply outputs should be
isolated from each other by utilizing
diodes or other switching
arrangements.
E.g.: To achieve a 80A redundant
system, five 20A power supplies are
needed in a N+1 redundant system.
N+1
Redundancy
1+1
Redundancy
AC
DC
CP20-Rx
Load
+
-
AC
DC
CP20-Rx
AC
DC
CP20-Rx
AC
DC
CP20-Rx
AC
DC
CP20-Rx
AC
DC
CP20-Rx
AC
DC
CP20-Rx
Load
+
-
AC
DC
CP20-Rx

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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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 equipment, where malfunction may cause severe personal injury or threaten human life.
2. INSTALLATION REQUIREMENTS
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.
Obey the following installation requirements:
- This device may only be installed and put into operation by qualified personnel.
- Install the device in an enclosure providing protection against electrical, mechanical and fire hazards.
- The device is designed for use in pollution degree 2 areas in controlled environments.
- The enclosure of the device provides a degree of protection of IP20 according to IEC 60529.
- Mount the unit on a DIN-rail so that the input terminals are located on the bottom of the unit. For other mounting orientations see
derating requirements in this document.
- The 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 15%!
- 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 (Example: another power supply).
- 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. Check also local
codes and local requirements. In some countries local regulations might apply.
- 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 the device to the factory for
inspection.
- The device is designed, tested and approved for branch circuits up to up to 30A (UL) or 32A (IEC) without additional protection device.
If an external fuse is utilized, do not use circuit breakers smaller than 10A B- or C-Characteristic to avoid a nuisance tripping of the
circuit breaker.
- A disconnecting means shall be provided for the input of the power supply.

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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Notes for use in hazardous location areas:
The power supply is suitable for use in Class I Division 2 Groups A, B, C, D locations. See chapter 20 for details.
WARNING EXPLOSION HAZARDS!
Substitution of components may impair suitability for this environment. Do not disconnect the unit or operate the voltage adjustment
unless power has been switched off or the area is known to be non-hazardous.
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.
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.

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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3. AC-INPUT
The device is suitable to be supplied from TN-, TT- and IT mains networks with AC voltage. For suitable DC supply voltages see chapter 4.
AC input
Nom.
AC 100-240V
AC input range
Min.
85-264Vac
Min.
264-300Vac
For maximal 500ms (occasional)
Allowed voltage L or N to earth
Max.
300Vac
Continuous, according to IEC 62477-1
Input frequency
Nom.
50–60Hz
±6%
Turn-on voltage
Typ.
82Vac
Steady-state value, see Fig. 3-1
Shut-down voltage
Typ.
72Vac
Steady-state value, see Fig. 3-1
External input protection
See recommendations in chapter 2.
AC 100V
AC 120V
AC 230V
Input current
Typ.
5.17A
4.28A
2.25A
At 20A, see Fig. 3-3
Power factor
Typ.
0.996
0.996
0.980
At 20A, see Fig. 3-4
Crest factor
Typ.
1.65
1.63
1.63
At 20A, The crest factor is the
mathematical ratio of the peak value to
RMS value of the input current
waveform.
Start-up delay
Typ.
450ms
450ms
450ms
See Fig. 3-2
Rise time
Typ.
145ms
145ms
145ms
At 20A const. current load, 0mF load
capacitance, see Fig. 3-2
Typ.
160ms
160ms
160ms
At 20A const. current load, 20mF load
capacitance,, see Fig. 3-2
Turn-on overshoot
Max.
1000mV
1000mV
1000mV
See Fig. 3-2
Fig. 3-1 Input voltage range
Fig. 3-2 Turn-on behavior, definitions
Turn-on
85V
Rated
input range
max.
500ms
VIN
P
OUT
300Vac264V
Shut-down
Start-up
delay Rise
Time
Overshoot
-5%
Output
Voltage
Input
Voltage
Fig. 3-3 Input current vs. output current
Fig. 3-4 Power factor vs. output current
24A
2 4 6 8 10 12 14 16 18
0
1
2
3
4
5
6A
Input Current, typ.
20 22
a)100Vac
b)120Vac
c)230Vac
b
a
c
Output Current
Power Factor, typ.
2 4 6 8 10 12 14 16 18 24A
0.75
0.8
0.85
0.9
0.95
1.0
20 22
a)100Vac
b)120Vac
c)230Vac
a,b
c
Output Current

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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4. DC-INPUT
The device is suitable to be supplied from a DC input voltage. Use a battery or a similar DC source. A supply from the intermediate DC-
bus of a frequency converter is not recommended and can cause a malfunction or damage the unit.
Connect +pole to L, –pole to N and the PE terminal to an earth wire or to the machine ground.
DC input
Nom.
DC 110-150V
±20% for CP20.241-Rx
Nom.
DC 110-300V
±20% for CP20.242-Rx
DC input range
Min.
88-180Vdc
For CP20.241-Rx
88-360Vdc
For CP20.242-Rx
DC input current
Typ.
4.64A
At 110Vdc and 20A load current
Typ.
1.66A
At 300Vdc and 20A load current
Allowed Voltage (+) or (-) input to
Earth
Max.
375Vdc
Continuous according to IEC 62477-1
Turn-on voltage
Typ.
80Vdc
Steady state value
Shut-down voltage
Typ.
70Vdc
Steady state value
Fig. 4-1 Wiring for DC Input
+
-
Load
L
PE
+
-
Power Supply
AC
DC
Battery
N

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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5. INPUT INRUSH CURRENT
An active inrush limitation circuit limits the input inrush current after turn-on of the input voltage.
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.
15Apeak
12Apeak
5.5Apeak
Temperature independent
Typ.
12Apeak
10Apeak
4.5Apeak
Temperature independent
Inrush energy
Max.
1A2s
1A2s
1A2s
Temperature independent
Fig. 5-1 Typical turn-on behavior at nominal load and
25°C ambient
Output
100mS/DIV
Input
230Vac
24Vdc
Input Current 5A/ DIV

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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6. OUTPUT
The output provides a SELV/PELV/ES1 rated voltage, which is galvanically isolated from the input voltage. The output of the devices
includes a decoupling MOSFET for building 1+1 or N+1 redundant power supply systems.
The device 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 > 1F are connected to the output, the unit might charge the
capacitor in the HiccupPLUS mode.
The device is featured with a “soft output regulation characteristic” in order to achieve current share between multiple devices when
they are connected in parallel. The “soft output regulation characteristic” regulates the output voltage in such a manner that the voltage
at no load is approx. 4% higher than at nominal load.
Output voltage
Nom.
DC 24V
23.8 - 25.2V
Adjustment range
See chapter 24.2
Factory settings
24.1V
±0.2%, at 20A, cold unit (results to typ. 23.9V±0.2% at 24A and
typ. 25.1V±0.2% at no load)
Line regulation
Max.
10mV
85-300Vac
Load regulation
Typ.
1000mV
Static value, 0A →20A; see Fig. 6-1
Ripple and noise voltage
Max.
100mVpp
20Hz to 20MHz, 50Ohm
Output current
Nom.
20A
Up to +60°C ambient temperature, see Fig. 17-1
Nom.
15A
At +70°C ambient temperature, see Fig. 17-1
Derate linearly between +60°C and +70°C, see chapter 17
PowerBoost1)
Nom.
24A
Up to +45°C ambient, see Fig. 17-1
PowerBoost decreases linearly to nominal power between +45°C and +60°C, see chapter 17
Fuse breaking current2)
Typ.
60A
Up to 12ms once every five seconds, see Fig. 6-3.
Overload protection
Included
Electronically protected against overload, no-load and short-
circuits. In case of a protection event, audible noise may
occur.
Overload behaviour
Continuous current
Output voltage above 13Vdc, see Fig. 6-1
Intermitted current3)
Output voltage below 13Vdc, see Fig. 6-1
Overload/ short-circuit current
Max.
29.8A
Continuous current, see Fig. 6-1
Typ.
29A
Intermitted current peak value for typ. 2s
Load impedance 10mOhm, see Fig. 6-2.
Discharge current of output capacitors is not included.
Max.
9.8A
Intermitted current average value (R.M.S.)
Load impedance 10mOhm, see Fig. 6-2
Output capacitance
Typ.
8 000µF
Included inside the power supply
Back-feeding loads
Max.
35V
The unit 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 absorbing
energy can be calculated according to the built-in large sized
output capacitor.
1) Power Boost
This power/ current is continuously allowed up to an ambient temperature of +45°C.
Above +45°C, do not use this power or current longer than a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.
2) The fuse braking current is an enhanced transient current which helps to start heavy loads or to trip fuses on faulty output branches. The output voltage stays
above 20V. See chapter 24.1 for additional measurements.
3) 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. 6-2.

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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Fig. 6-1 Output voltage vs. output current, typ.
Fig. 6-2 Short-circuit on output, HiccupPLUS mode, typ.
Output Voltage
0025
4
8
12
28V
16
20
24
40A15510 20 30 35
Output Current
A:continuouscurrent
B:intermittedcurrent
A
B
Output
Current
0
29A
18s 18s
18s 2s 2s
2s
t
Short -circuit Normal
operation
Normal
operation
Fig. 6-3 Dynamic overcurrent capability, typ.
Output Voltage (dynamicbehavior,<12ms)
00
4
8
12
28V
16
20
24
70A3010 40 5020 60
Output Current
7. HOLD-UP TIME
AC 100V
AC 120V
AC 230V
Hold-up Time
Typ.
65ms
65ms
65ms
At 10A, see Fig. 7-1
Min.
54ms
54ms
54ms
At 10A, see Fig. 7-1
Typ.
32ms
32ms
32ms
At 20A, see Fig. 7-1
Min.
24ms
24ms
24ms
At 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
85 120 155 190 230Vac
Input Voltage
50
60
Hold-upTime
20A,typ.
10A,min.
10A,typ.
70
20A,min.
-5%
Hold-up Time
ZeroTransition
Output
Voltage
Input
Voltage

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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8. DC-OK RELAY CONTACT
This feature monitors the output voltage of the power supply in front of the decoupling device (see also chapter 12).
Contact closes
As soon as the output voltage reaches typ. 22Vdc.
Contact opens
As soon as the output voltage dips below 22Vdc.
Short dips will be extended to a signal length of 100ms. Dips shorter than 1ms will be ignored.
Switching hysteresis
1V
Contact ratings
Maximal 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load
Minimal permissible load: 1mA at 5Vdc
Isolation voltage
See dielectric strength table in chapter 19.
Fig. 8-1 DC-OK relay contact behavior
100ms
22Vdc
<
1ms
open openclosed closed
>
1...4ms

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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9. EFFICIENCY AND POWER LOSSES
AC 100V
AC 120V
AC 230V
Efficiency
Typ.
93.2%
93.8%
95.2%
At 20A
Typ.
93.1%
93.7%
95.1%
At 24A (PowerBoost)
Average efficiency*)
Typ.
92.8%
93.4%
94.6%
25% at 5A, 25% at 10A,
25% at 15A. 25% at 20A
Power losses
Typ.
3.9W
3.5W
3.3W
At 0A
Typ.
17.4W
16.4W
13.8W
At 10A
Typ.
35.0W
31.7W
24.2W
At 20A
Typ.
42.7W
38.7W
29.7W
At 24A (PowerBoost)
*) 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 Efficiency vs. output current, typ
Fig. 9-2 Losses vs. output current, typ.
Efficiency
4 6 8 10 12 14 18 20 24A
87
88
90
91
92
93
94
95
96%
Output Current
16 22
(a)
(b)
(c)
(a)100Vac
(b)120Vac
(c) 230Vac
Power Losses
0 2 6 8 12 14 24A
5
0
10
20
30
40W
18 20410 16
Output Current
22
(a)
(b)
(c)
(a)100Vac
(b)120Vac
(c) 230Vac
35
25
15
Fig. 9-3 Efficiency vs. input voltage at 20A, typ.
Fig. 9-4 Losses vs. input voltage at 20A, typ.
Efficiency
120 180 230 264Vac
90
91
92
93
Input Voltage
94
95
96%
100
Power Losses
120 180 230 264Vac
10
15
20
25
Input Voltage
30
35
40W
100

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
13/33
10.LIFETIME EXPECTANCY
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.
AC 100V
AC 120V
AC 230V
Lifetime expectancy
117 000h
136 000h
164 000h
At 10A and 40°C
331 000h
386 000h
465 000h
At 10A and 25°C
40 000h
53 000h
90 000h
At 20A and 40°C
114 000h
150 000h
253 000h
At 20A and 25°C
16 000h
25 000h
47 000h
At 24A and 40°C
44 000h
69 000h
134 000h
At 24A and 25°C
11.MTBF
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.
For these types of units the MTTF (Mean Time To Failure) value is the same value as the MTBF value.
AC 100V
AC 120V
AC 230V
MTBF SN 29500, IEC 61709
387 000h
412 000h
543 000h
At 20A and 40°C
723 000h
768 000h
976 000h
At 20A and 25°C
MTBF MIL HDBK 217F
164 000h
169 000h
199 000h
At 20A and 40°C;
Ground Benign GB40
224 000h
231 000h
272 000h
At 20A and 25°C;
Ground Benign GB25
34 000h
36 000h
42 000h
At 20A and 40°C;
Ground Fixed GF40
45 000h
47 000h
56 000h
At 20A and 25°C;
Ground Fixed GF25

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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14/33
12.FUNCTIONAL DIAGRAM
Fig. 12-1 Functional diagram CP20.241-R1
Output
Over-
Voltage
Protection
PFC
Converter Power
Converter Output
Filter
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
ActiveInrushLimiter
L
N
Decoupling
+
+
-
-
-
Output
Voltage
Regulator
Output
Voltage
Monitor
V
OUT
DC-ok
Contact
DC-ok
LED
DC-ok
Relay
Fig. 12-2 Functional diagram CP20.241-R2, CP20.242-R2 and CP20.241-R2-C1
+
-
Output
Over-
Voltage
Protection
PFC
Converter Power
Converter Output
Filter
Output
Power
Manager
Temper-
ature
Shut-
down
Input Fuse
Input Filter
Input Rectifier
ActiveInrushLimiter
L
N
Decoupling
Output
Voltage
Regulator
Output
Voltage
Monitor
V
OUT
DC-ok
Contact
DC-ok
LED
DC-ok
Relay

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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15/33
13.TERMINALS AND WIRING
The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.
CP20.241-R1
Input
Output
DC-OK-Signal
Type
Quick-connect spring-clamp
terminal
Quick-connect spring-
clamp terminal
Push-in terminal
Solid wire
Max. 6mm2
Max. 6mm2
Max. 1.5mm2
Stranded wire
Max. 4mm2
Max. 4mm2
Max. 1.5mm2
American Wire Gauge
AWG 20-10
AWG 20-10
AWG 24-16
Max. wire diameter (including ferrules)
2.8mm
2.8mm
1.6mm
Wire stripping length
10mm
10mm
7mm
Screwdriver
3 mm slotted to open the
spring
CP20.241-R2, CP20.242-R2, CP20.241-R2-C1
Input
Output
DC-OK-Signal
Type
Plug connector with screw
terminal
Plug connector with screw
terminal
Plug connector with screw
terminal
Solid wire
Max. 4mm2
Max. 6mm2
Max. 1.5mm2
Stranded wire
Max. 2.5mm2
Max. 6mm2
Max. 1.5mm2
American Wire Gauge
AWG 20-12
AWG 24-10
AWG 26-14
Max. wire diameter (including ferrules)
2.4mm
3.2mm
1.8mm
Recommended tightening torque
Max. 0.5Nm
Max. 0.6Nm
Max. 0.8Nm
Wire stripping length
7mm
12mm
6mm
Screwdriver
3.5mm slotted or cross-
head No 2
3.5mm slotted or cross-
head No 2
3.5mm slotted
Do not unplug the
connectors more often than
20 times in total
Do not unplug the
connectors more often
than 20 times in total
Do not unplug the
connectors more often than
20 times in total
Instructions for wiring:
a) Use appropriate copper cables that are designed for minimum operating temperatures of:
60°C for ambient up to 45°C, 75°C for ambient up to 60°C and 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) Unused terminal compartments should be securely tightened.
e) Ferrules are allowed and recommended.

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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16/33
14.REPLACING UNITS WHILE THE SYSTEM IS RUNNING
This feature is available only for the CP20.241-R2, CP20.242-R2 and CP20.241-R2-C1 units, which are equipped with hot-swappable plug
connectors.
Fig. 14-1 Replacing the power supply or redundancy module while the system is running
Load
I I
L
N
PE
1a
L N PE
+
-
CP20.241-R2
Power Supply
DC-OK
DC-
OK
Output 24V20A
Input L N PE
+
-
CP20.241-R2
Power Supply
DC-OK
DC-
OK
Output 24V20A
Input
1b
2a
3a 3b
2b
Replacement instructions (Example for left power supply):
-Switch-off circuit breaker (1a).
-Remove plug (2a).
-Remove plug (3a). The plug prevents the cables from shorting.
-Change power supply.
-Put the plug (3a) back in.
-Put the plug (2a) back in.
-Turn-on the circuit breaker (1a).
-The circuit is redundant again.
To replace the right power supply, repeat the process above using (1b), (2b) and (3b).

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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17/33
15.FRONT SIDE AND USER ELEMENTS
Fig. 15-1 Front side
CP20.241-R1
Fig. 15-2 Front side
CP20.241-R2
CP20.242-R2
CP20.241-R2-C1
A
Input Terminals
N, L Line input
PE (Protective Earth) input
B
Output Terminals
+Positive output
–Negative (return) output
C
Output voltage potentiometer
See chapter 24.2.
D
DC-OK LED (green)
On, when the output voltage is above 22V.
E
DC-OK Relay Contact
The DC-OK relay contact is synchronized with
the DC-OK LED.
See chapter 8 for details.

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
18/33
16.EMC
The EMC behavior of the device is designed for applications in industrial environment as well as in residential, commercial and light industry
environments.
EMC Immunity
According to the 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
20V/m
Criterion A
Fast transients (Burst)
EN 61000-4-4
Input lines
Output lines
DC-OK signal (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
2kV
Criterion A
Criterion A
Surge voltage on Signals
EN 61000-4-5
DC-OK signal →PE
1kV
Criterion A
Conducted disturbance
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 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
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, 0.3ms
Criterion A
Criterions:
A: Power supply shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible.Device may shut-down and restarts by itself. No damage or hazards for the power supply will occur.
EMC Emission
According to the generic standards EN 61000-6-3 and EN 61000-6-4.
Conducted emission
input lines
EN 55011, EN 55015, 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
5dB higher than average limits for DC power port
according EN 61000-6-3*)
Radiated emission
EN 55011, EN 55022
Class B
Harmonic input current
EN 61000-3-2
Class A equipment: fulfilled
Class C equipment: fulfilled in the load range from 8
to 24A
Voltage fluctuations, flicker
EN 61000-3-3
Fulfilled, tested with constant current loads, non
pulsing
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.
*) 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.
Switching Frequencies
PFC converter
100kHz
Fixed frequency
Main converter
80kHz to 140kHz
Output load dependent
Auxiliary converter
60kHz
Fixed frequency

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
19/33
17.ENVIRONMENT
Operational temperature
-40°C to +70°C
Operational temperature is the same as the ambient or
surrounding temperature and is defined as the air
temperature 2cm below the unit.
Storage temperature
-40°C to +85°C
For storage and transportation
Output derating
0.5A/K
1.25A/1000m or 5K/1000m
0.75A/-5kPa or 3K/-5kPa
Between +60°C and +70°C
For altitudes >2000m, see Fig. 17-2
For atmospheric pressures <80kPa, see Fig. 17-2
The derating is not hardware controlled. The customer has to take this into consideration to stay
below the de-rated current limits in order not to overload the unit.
Humidity
5 to 95% r.h.
According to IEC 60068-2-30
Do not energize while condensation is present.
Atmospheric pressure
110-47kPa
See Fig. 17-2 for details
Altitude
Up to 6000m
See Fig. 17-2 for details
Over-voltage category
III
According to IEC 60664-1 for altitudes up to 2000m
II
According to IEC 60664-1, for altitudes between 2000 and
6000m and atmospheric pressures from 80-47kPa.
Degree of pollution
2
According to IEC 62477-1, not conductive
Vibration sinusoidal
2-17.8Hz: ±1.6mm;
17.8-500Hz: 2g
2 hours / axis
According to IEC 60068-2-6
Shock
30g 6ms, 20g 11ms
3 bumps per direction, 18 bumps in
total
According to IEC 60068-2-27
Shock and vibration is tested in combination with DIN-Rails according to EN 60715 with a height of
15mm and a thickness of 1.3mm and standard orientation.
Corrosive gases
Tested according to ISA-71.04-1985, Severity Level G3 and IEC 60068-2-60 Test Ke Method 4 for a
service life of minimum 10years in these environments.
Audible noise
Some audible noise may be emitted from the power supply during no load, overload or short circuit.
Fig. 17-1 Output current vs. ambient temp.
(Inom 20A; Iout with PowerBoost = 24A)
Fig. 17-2 Output current vs. altitude
AllowedOutput Current
0-40 020 40 70°C
4A
8A
12A
16A
20A
24A
60
B
A
Ambient Temperature
A...continuous
B...short term(max.5s)
2000m 4000m 6000m
4A
8A
12A
16A
20A
24A
Altitude
AllowedOutput Current
B
C
A... Tamb < 60°C
B... Tamb < 50°C
C... Tamb < 45°C
D... Short term
A
D
AP
*)
80kPa 62kPa 47kPa110kPa
0m
*)Atmosphericpressure

CP20.241-R1, CP20.241-R2,
CP20.242-R2, CP20.241-R2-C1
CP-Series
24V, 20A, 480W, SINGLE PHASE
Aug. 2022 / Rev. 1.1 DS-CP20.241-R2-EN - All parameters are typical values specified at 230Vac, 50Hz input voltage, 24V, 20A output
load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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20/33
18.SAFETY AND PROTECTION FEATURES
Isolation resistance
Min.
500MOhm
At delivered condition between input and output,
measured with 500Vdc
Min.
500MOhm
At delivered condition between input and PE, measured
with 500Vdc
Min.
500MOhm
At delivered condition between output and PE, measured
with 500Vdc
Min.
500MOhm
At delivered condition between output and DC-OK
contacts, measured with 500Vdc
PE resistance
Max.
0.1Ohm
Resistance between PE terminal and the housing in the
area of the DIN-rail mounting bracket.
Output over-voltage protection
Typ.
30.5Vdc
Max.
32Vdc
In case of an internal defect, a redundant circuit limits the maximum output voltage.
The output shuts down and automatically attempts to restart.
Class of protection
I
According to IEC 61140
A PE (Protective Earth) connection is required
Degree of protection
IP 20
According to EN/IEC 60529
Over-temperature protection
Included
Output shut-down with automatic restart.
Temperature sensors are installed on critical components
inside the unit and turn the unit off in safety critical
situations, which can happen e.g. when ambient
temperature is too high, ventilation is obstructed or the
derating requirements are not followed. There is no
correlation between the operating temperature and turn-
off temperature since this is dependent on input voltage,
load and installation methods.
Input transient protection
MOV (Metal Oxide
Varistor)
For protection values see chapter 16 (EMC).
Internal input fuse
Included
Not user replaceable slow-blow high-braking capacity fuse
Touch current (leakage current)
Typ.
0.12mA / 0.31mA
At 100Vac, 50Hz, TN-,TT-mains / IT-mains
Typ.
0.18mA / 0.45mA
At 120Vac, 60Hz, TN-,TT-mains / IT-mains
Typ.
0.30mA / 0.76mA
At 230Vac, 50Hz, TN-,TT-mains / IT-mains
Max.
0.16mA / 0.38mA
At 110Vac, 50Hz, TN-,TT-mains / IT-mains
Max.
0.23mA / 0.55mA
At 132Vac, 60Hz, TN-,TT-mains / IT-mains
Max.
0.39mA / 0.94mA
At 264Vac, 50Hz, TN-,TT-mains / IT-mains