Puls CP20.241-M1 DIN rail power supply Owner's Manual

CP-Series

CP20.241-M1

24V, 20A, S INGLE P HASE I NPUT

P

OWER

S

UPPLY

 2MOPP Safety Approved for Medical applications according to IEC 60601-1

 Quick-connect Spring-clamp Terminals

 AC 100-240V Wide-range Input

 Width only 48mm

 Efficiency up to 95.6%, Excellent Partial Load Efficiency

 Easy Fuse Breaking – 3 times nominal current for 12ms

 Safe Hiccup PLUS Overload Mode

 Active Power Factor Correction (PFC)

 Minimal Inrush Current Surge

 Full Power Between -25°C and +60°C

 DC-OK Relay Contact

 3 Year Warranty

P

RODUCT

D

ESCRIPTION

The CP20.241-M1 is a DIN rail mountable single-phaseinput power supply for use in industrial and medical equipment. It provides a stable and galvanically separated SELV/PELV output voltage.

The specialty of this power supply is the 2MOPP (two means of patient protection) safety approval for medical use and the fulfillment of the required EMC tests for professional healthcare facility and home healthcare environments.

The CP-Series is part of the DIMENSION power supply family. The most outstanding features of CP20.241-M1 are the high efficiency, advanced inrush current limitation, active PFC and the wide operational temperature range.

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.

O

RDER

N

UMBERS

Power Supply CP20.241-M1 Medical power supply with Spring-clamp terminal

Accessory ZM10.WALL Wall/panel mount bracket

ZM12.SIDE Side mount bracket

S

HORT

-

FORM

D

ATA

Output voltage DC 24V

Adjustment range 24 - 28V

Output current

Range A

20.0 – 17.1A

Output current

Range B

Nominal

Factory setting 24.1V

15.0 – 13.0A At +70°C ambient

Derate linearly between +60°C and +70°C

18.0 – 15.4A Up to +60°C ambient

13.5 – 9.6A

Up to +60°C ambient

At +70°C ambient

Derate linearly between +60°C and +70°C

AC Input voltage

Range A

Range B

AC 120-240V

AC 100-240V

-15%/+10%

-15%/+10%

Mains frequency

Input current AC

Power factor

Input voltage DC

Input current DC

AC Inrush current

Efficiency

Losses

50-60Hz

4.26 / 2.23A

0.99 / 0.98

DC 110-150V

4.64A

10.0 / 4.5Apk

94.2 / 95.6%

29.6 / 22.1W

Hold-up time 32/ 32ms

Temperature range -25°C to +70°C

Size (WxHxD)

Weight

48x124x127mm

830g

±6%

At 120 / 230Vac

At 120 / 230Vac

±20%

At 110Vdc

At 120 / 230Vac

At 120 / 230Vac

At 120 / 230Vac

At 120 / 230Vac

Without DIN rail

M

AIN

A

PPROVALS

For details and the complete approval list see chapter 20.

UL 60601-1 planned

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN

All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. www.pulspower.com Phone +49 89 9278 0 Germany

1/28

CP-Series

CP20.241-M1


I

NDEX

Page

1.

Intended Use ............................................................. 3

2.

Installation Instructions ............................................ 3

3.

AC-Input .................................................................... 5

4.

DC-Input .................................................................... 6

5.

Input Inrush Current ................................................. 7

6.

Output ....................................................................... 8

7.

Hold-up Time .......................................................... 10

8.

DC-OK Relay Contact .............................................. 10

9.

Efficiency and Power Losses ................................... 11

10.

Functional Diagram ................................................ 12

11.

Front Side and User Elements ................................ 13

12.

Connection Terminals............................................. 13

13.

Lifetime Expectancy................................................ 14

14.

MTBF ........................................................................ 14

15.

EMC – According to Medical Standards ................ 15

16.

EMC – According to Generic Standards ................ 16

17.

Environment ........................................................... 17

18.

Safety and Protection Features ............................. 18

19.

Dielectric Strength .................................................. 19

Page

20.

Approved, Fulfilled or Tested Standards .............. 20

21.

Regulatory Product Compliance............................ 20

22.

Physical Dimensions and Weight .......................... 21

23.

Accessories .............................................................. 22

23.1.

ZM10.WALL - Wall/Panel Mount Bracket .... 22

23.2.

ZM12.SIDE - Side Mounting Bracket ............ 23

24.

Application Notes ................................................... 24

24.1.

Peak Current Capability ................................ 24

24.2.

Output Circuit Breakers ................................ 25

24.3.

Charging of Batteries ................................... 25

24.4.

Series Operation ........................................... 26

24.5.

Parallel Use to Increase Output Power........ 26

24.6.

Parallel Use for Redundancy ........................ 26

24.7.

Inductive and Capacitive Loads ................... 26

24.8.

Operation on Two Phases ............................ 26

24.9.

Use in a Tightly Sealed Enclosure ................ 26

24.10.

Mounting Orientations ................................ 27

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 (available under www.pulspower.com).

No part of this document may be reproduced or utilized in any form without our prior permission in writing.

Packaging and packaging aids can and should always be recycled. The product itself may not be disposed of as domestic refuse.

T

ERMINOLOGY AND

A

BREVIATIONS

PE and symbol PE is the abbreviation for P rotective E arth 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.

AC 230V

To be defined, value or description will follow later.

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

50Hz vs. 60Hz may shall should

A figure with the unit (Vac) at the end is a momentary figure without any additional tolerances included.

As long as not otherwise stated, AC 230V parameters are valid at 50Hz mains frequency.

A key word indicating flexibility of choice with no implied preference.

A key word indicating a mandatory requirement.

A key word indicating flexibility of choice with a strongly preferred implementation.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


2/28

CP-Series

CP20.241-M1


1. I

NTENDED

U

SE

This device is designed for installation in an enclosure and is intended for use in medical equipment. Do not use this device in HF surgical equipment or similar apertures.

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

I

NSTRUCTIONS

WARNING

Risk of electrical shock, fire, personal injury or death

- Turn power off before working on the device. Protect against inadvertent re-powering.

- Do not open, modify or repair the unit.

- 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 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 the 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.

Use shielded or unshielded cables, twisted or untwisted cables of any length. 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 +90°C for ambient temperatures between below +60°C and 1+05°C for ambient temperatures up to

+70°C. Ensure that all strands of a stranded wire enter the terminal connection.

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 housing 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 terminals and the PE potential must not exceed 264Vac.

The device can also be powered from batteries or similar DC sources. The voltage between the input terminals and the

PE terminal must not exceed 180Vdc continuously.

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 3000m.

Keep the following minimum installation clearances: 50mm on top, 50mm 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.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


3/28

CP-Series

CP20.241-M1


The device is designed, tested and approved for branch circuits up to 32A (IEC) and 30A (UL) 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.

The maximum surrounding air temperature is +70°C. 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.

Portable RF communication equipment should be used no closer than 30cm to the power supply or the power supply connection cables.

WARNING

Use of this equipment adjacent to or stacked with other equipment should be avoided because it could result in improper operation. If such use is necessary, this equipment and the other equipment should be observed to verify that they are operating normally.

Please note: This device incorporates a single fuse in the L-input. For medical use an additional external fuse in the Ninput may be necessary, depending on the type of medical equipment.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


4/28

CP-Series

CP20.241-M1


3. AC-I

NPUT

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 voltage Range A

AC input voltage Range B

AC input range

Nom.

Nom.

AC 120-240V

AC 100-240V

85-264Vac

264-300Vac

Allowed voltage L or N to earth Max. 300Vac

Input frequency

Turn-on voltage

Shut-down voltage

External input protection

Nom.

Typ.

Typ.

50–60Hz

82Vac

72Vac

-15%/+10%

-15%/+10%

Occasionally for maximal 500ms

Continuous, according to IEC 60664-1

±6%

Steady-state value, see Fig. 3-1

Steady-state value, see Fig. 3-1

See recommendations in chapter 2.

Input current

Power factor

Crest factor

Rise time

*)

Start-up delay

Typ.

Typ.

Typ.

Typ.

Typ.

Typ.

Max.

AC 120V AC 230V

4.26A 2.23A

0.996 0.980

1.63 1.63

450ms

145ms

160ms

200mV

450ms

145ms

160ms

200mV

At 24V, 20A, see Fig. 3-3


At 24V, 20A, The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform.

See Fig. 3-2

At 24V, 20A const. current load, 0mF load

capacitance, see Fig. 3-2

At 24V, 20A const. current load, 20mF load

capacitance, see Fig. 3-2 see Fig. 3-2

Turn-on overshoot

P

OUT

Fig. 3-1 Input voltage range

Rated input range max.

500ms

Fig. 3-2 Turn-on behavior, definitions

Input

Voltage

85V

V

IN

264V 300Vac

Fig. 3-3 Input current vs. output current at

24V output voltage

2

1

0

4

3

Input Current, typ.

6A

5

(a) 120Vac

(b) 230Vac

Output Current

2 4 6 8 10 12 14 16 18

(a)

20A

Output

Voltage

- 5%

Start-up delay

Rise

Time

Fig. 3-4 Power factor vs. output current at

24V output voltage

Power Factor, typ.

1.0

0.95

(a)

(b)

0.9

0.85

(a) 120Vac

(b) 230Vac

0.8

Output Current

0.75

2 4 6 8 10 12 14 16 18 20A

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


5/28

CP-Series

CP20.241-M1


4. DC-I

NPUT

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

DC input range

DC input current

Allowed voltage (+) or (-) input to Earth

Turn-on voltage

Shut-down voltage

Nom. DC 110-150V

Typ.

88-180Vdc

4.64A

Max. 375Vdc

Typ.

Typ.

80Vdc

70Vdc

±20%, derate below 110V acc. to chapter 6: Output

Current, Range B

At 110Vdc, at 24V, 20A

Continuous according to IEC 60664-1

Steady state value

Steady state value

Battery

+

Fig. 4-1 Wiring for DC Input

Power Supply

AC

L

N

PE

+

-

Load

-

DC

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


6/28

CP-Series

CP20.241-M1


5. I

NPUT

I

NRUSH

C

URRENT

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.

Inrush current

Inrush energy

Max.

Typ.

Max.

AC 120V

12A peak

10A peak

1A 2 s

AC 230V

5.5A

peak

4.5A

peak

1A 2 s

Temperature independent



Fig. 5-1 Typical turn-on behavior at nominal load and 25°C ambient

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


7/28

CP-Series

CP20.241-M1


6. O

UTPUT

The output provides a SELV/PELV/ES1 rated voltage, which is galvanically isolated from the input voltage.

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 an intermittent mode.

The output is electronically protected against overload, no-load and short-circuits. In case of a protection event, audible noise may occur.

Output voltage

Adjustment range

Nom.

Max.

24V

24-28V

30V

Factory setting output voltage Typ. 24.1V

Line regulation

Load regulation

Ripple and noise voltage

Output current Range A

Max.

Max.

Max.

10mV

100mV

50mVpp

Guaranteed value

This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is not a guaranteed value which can be achieved.

±0.2% at full load, cold unit

Between 85 and 300Vac input voltage change

Between 0 and 24A , static value

Bandwidth 20Hz to 20MHz, 50Ohm

Nom. 20A

Nom. 15A

Nom. 17.1A

At 24V and up to +60°C ambient temperature

At 24V and +70°C ambient temperature


Nom. 13A At 28V and +70°C ambient temperature

Derate linearly between +60°C and +70°C, see chapter 17

Output current Range B

Output capacitance

Back-feeding loads

Nom. 18A

Nom. 13.5A

Nom. 15.4A

Nom. 9.6A





Derate linearly between +60°C and +70°C, see chapter 17

Fuse breaking current

Overload behavior

Typ.

Overload/ short-circuit current Max. 29.8A

Typ. 29A

Max.

60A

9.8A

Up to 12ms once every five seconds, see Fig. 6-3.

The fuse breaking current is an enhanced transient current which helps to trip fuses on faulty output branches. The output voltage stays above 20V.

Continuous current

For output voltage > 13Vdc, see Fig. 6-1

Intermittent current 2)

For output voltage < 13Vdc, see Fig. 6-1

Continuous current, see Fig. 6-1

Intermitted current peak value for typ. 2s

Load impedance 10mOhm, see Fig. 6-2

Discharge current of output capacitors is not included.

Intermitted current average value (R.M.S.)

Load impedance 10mOhm, see Fig. 6-2

Typ. 8 500µF

Max. 35V

Included inside the power supply

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) 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.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


8/28

CP-Series

Fig. 6-1 Output voltage vs. output current, typ

Output Voltage (Single Use, typ.)

28V

24

20

16

12

8

4

0

0

(a) continuous current

(b) intermitted current

5

Output Current

10 15 20

Adjustment

Range

(a)

(b)

25 30A

24V,

CP20.241-M1

20A, S INGLE P HASE

Fig. 6-2 Short-circuit on output, Hiccup PLUS ® mode, typ.

Output

Current

Normal operation

29A

Short -circuit

Normal operation

0 t

2s 18s 2s 18s 2s 18s

Fig. 6-3 Dynamic overcurrent capability, typ.

Output Voltage (dynamic behavior, < 12ms)

28V

24

20

16

12

Adjustment

Range

8

4

0

Output Current

0 10 20 30 40 50 60 70A

I NPUT

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


9/28

CP-Series

CP20.241-M1


7. H

OLD

-

UP

T

IME

The hold-up time is the time during which a power supply’s output voltage remains within specification following the loss of input power. The hold-up time is output load dependent. At no load, the hold-up time can be up to several seconds. The green DC-OK LED is also on during this time.

Hold-up Time Typ.

Min.

Typ.

Min.

AC 120V

65ms

54ms

32ms

24ms

AC 230V

65ms

54ms

32ms

24ms





Fig. 7-1 Hold-up time vs. input voltage

Hold-up Time

80ms

70

60

50

40

30

20

10

0

85 120

24V, 10A, typ.

24V, 10A, min.

24V, 20A, typ.

24V, 20A, min.

Input Voltage

155 190 230Vac

Fig. 7-2 Shut-down behavior, definitions

Zero Transition

Input

Voltage

Output

Voltage

Hold-up Time

- 5%

8. DC-OK R

ELAY

C

ONTACT

This feature monitors the output voltage on the output terminals of a running power supply.

Contact closes

Contact opens

As soon as the output voltage reaches typ. 90% of the adjusted output voltage level.

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.

Switching hysteresis 1V

Contact ratings

Isolation voltage

Maximal 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load

Minimal permissible load: 1mA at 5Vdc

See dielectric strength table in chapter 18.

Fig. 8-1 DC-OK relay contact behavior

V

OUT

= V

ADJ

10%

0.9* V

ADJ

<

1ms

>

1...4ms

100ms open closed open closed

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


10/28

CP-Series

CP20.241-M1


9. E

FFICIENCY AND

P

OWER

L

OSSES

Efficiency

Average efficiency *)

Typ.

Typ.

AC 120V

94.2%

93.8%

AC 230V

95.6%

95.0%

At 24V, 20A

25% at 5A, 25% at 10A,

25% at 15A. 25% at 20A

Power losses Typ.

Typ.

2.2W

15.0W

2.2W

12.5W

At 24V, 0A

At 24V, 10A

Typ. 29.6W 22.1W At 24V, 20A

*) 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 at 24V, typ

Efficiency

96%

95

94

93

92

91

90

88

87

Output Current

4 6 8 10 12 14 16

(a) 120Vac

(b) 230Vac

18 20A

Fig. 9-3 Efficiency vs. input voltage at 24V,

20A, typ.

Efficiency

96%

92

91

90

95

94

93

100 120

Input Voltage

180 230 264Vac

Fig. 9-2 Losses vs. output current at 24V, typ.

Power Losses

30W

25

20

15

10

5

0

0 2 4 6 8

Output Current

(a) 120Vac

(b) 230Vac

10 12 14 16 18 20A

Fig. 9-4 Losses vs. input voltage at 24V, 20A, typ.

Power Losses

40W

20

15

10

35

30

25

100 120

Input Voltage

180 230 264Vac

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


11/28

CP-Series

CP20.241-M1


10. F

UNCTIONAL

D

IAGRAM

Fig. 10-1 Functional diagram CP20.241-M1

L

N

Input Fuse

Input Filter

Input Rectifier

Inrush Current Limiter

PFC

Converter

Power

Converter

Output

Filter

Output

Voltage

Regulator

Temperature

Shutdown

Output

Power

Manager

Output

Over-

Voltage

Protection

Output

Voltage

Monitor DC-ok

Relay

-

-

-

+

+

V

OUT

DC-ok

LED

DC-ok

Contact

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


12/28

CP-Series

CP20.241-M1


11. F

RONT

S

IDE AND

U

SER

E

LEMENTS

Fig. 11-1 Front side

A Input Terminals

Quick-connect spring-clamp terminals

N, L Line input

PE (Protective Earth) input

B Output Terminals two identical + poles and three identical – poles

Quick-connect spring-clamp terminals

+

–

Positive output

Negative (return) output

C Output Voltage Potentiometer

Open the flap to adjust the output voltage. The factory setting is 24.1V.

D DC-OK LED (green)

On, when the output voltage is >90% of the adjusted output voltage

E DC-OK Relay Contact

The DC-OK relay contact is synchronized with the

DC-OK LED. See chapter 8 for details.

12. C

ONNECTION

T

ERMINALS

The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.

Type

Solid wire

Stranded wire

American Wire Gauge

Input and Output

Quick-connect spring-clamp terminals max. 6mm max. 4mm

2

2 max. AWG 20-10

Wire diameter (including ferrules) max. 2.8mm

Wire stripping length 10mm

Screwdriver -

DC-OK Signal

Push-in terminals max. 1.5mm

2 max. 1.5mm

2 max. AWG 28-16 max. 1.6mm

7mm

3mm slotted to open the spring

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


13/28

CP20.241-M1

CP-Series 24V, 20A, S INGLE P HASE I NPUT

13.

L

IFETIME

E

XPECTANCY

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.

Lifetime expectancy

AC 120V

60kh

149kh

31kh

169kh

422kh

88kh

AC 230V

94kh At 24V, 20A, 40°C

173kh At 24V, 10A, 40°C

54kh At 24V, 24A, 40°C

265kh At 24V, 20A, 25°C

488kh At 24V, 10A, 25°C

152kh At 24V, 24A, 25°C

14.

MTBF

MTBF stands for M ean T ime B etween F ailure, 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 ( M ean T ime T o F ailure) value is the same value as the MTBF value.

MTBF SN 29500, IEC 61709

MTBF MIL HDBK 217F

AC 120V

429kh

794kh

197kh

267kh

41kh

54kh

AC 230V

569kh At 24V, 20A, 40°C

1012kh At 24V, 20A, 25°C

233kh At 24V, 20A, 40°C; Ground Benign GB40

318kh At 24V, 20A, 25°C; Ground Benign GB25

49kh At 24V, 20A, 40°C; Ground Fixed GF40

66kh At 24V, 20A, 25°C; Ground Fixed GF25

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


14/28

CP20.241-M1


15.

EMC – A

CCORDING TO

M

EDICAL

S

TANDARDS

EMC Immunity

Electrostatic discharge

Electromagnetic RF field

Fast transients (Burst)

Surge voltage on input

Conducted disturbance

Rated power frequency magnetic fields

Mains voltage dips

Voltage interruptions

According to medical standard: EN 60601-1-2

EN 61000-4-2

EN 61000-4-3

EN 61000-4-3,

EN 60601-1-2 table 9

EN 61000-4-4

EN 61000-4-5

EN 61000-4-6

EN 61000-4-8

Contact discharge

Air discharge

Air discharge DC-OK signal

80MHz-2.7GHz

385MHz-5.78GHz

Input lines

Output lines

DC-OK signal (coupling clamp)

L  N

L  PE, N  PE

0.15-80MHz

Frequency 50Hz

Frequency 60Hz

EN 61000-4-11 0% of 100Vac

0% of 100Vac

70% of 100Vac

0% of 240Vac

0% of 240Vac

70% of 240Vac

EN 61000-4-11 0% of 100Vac

0% of 240Vac

8kV

15kV

8kV

10V/m

9-28V/m

2kV

1kV

1kV

1kV

2kV

6V

30A/m

30A/m

0Vac, 10ms

0Vac, 20ms

70Vac, 500ms

0Vac, 10ms

0Vac, 20ms

168Vac, 500ms

0Vac, 5000ms

0Vac, 5000ms

Criterions:

A: Power supply shows normal operation behavior within the defined limits.

B: Output voltage out of range or switches off. DC-OK signal might trigger. Restores automatically after the test.

EMC Emission

Conducted emission input lines

Radiated emission

Harmonic input current

According to generic standard: EN 60601-1-2

EN 55011, CISPR 11 Class B for AC Input voltages and Class A for DC input voltages

EN 55011, CISPR 11

EN 61000-3-2

Class B

Class A fulfilled between 0A and 12A load

Class C fulfilled between 6A and 12A load

EN 61000-3-3 Fulfilled *) Voltage fluctuations, flicker

Switching Frequencies The power supply has three converters with two different switching frequencies included.

Switching frequency 1 110kHz PFC converter

Switching frequency 2

Switching frequency 3

84kHz to 140kHz

60kHz

Main converter, output power dependent

Auxiliary converter

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion B

Criterion B

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


15/28

CP20.241-M1

24V, 20A, S INGLE P HASE I NPUT CP-Series

16.

EMC – A

CCORDING TO

G

ENERIC

S

TANDARDS

In regard to EMC, the power supply is designed for applications in medical applications, industrial environment as well as in residential, commercial and light industry environment.

The device is investigated according to EN 61000-6-1, EN 61000-6-2, EN 61000-6-3 and EN 61000-6-4.

EMC Immunity

Electrostatic discharge

Electromagnetic RF field

Fast transients (Burst)

Surge voltage on input

EN 61000-4-2

EN 61000-4-3

EN 61000-4-4

EN 61000-4-5

Contact discharge

Air discharge

80MHz-2.7GHz

Input lines

Output lines

DC-OK signal (coupling clamp)

L  N

L  PE, N  PE

8kV

15kV

20V/m

4kV

2kV

2kV

2kV

4kV

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Criterion A

Surge voltage on output

Surge voltage on Signals

Conducted disturbance

EN 61000-4-5

EN 61000-4-5

EN 61000-4-6

+  -

+ / -  PE

DC-OK signal  PE

0.15-80MHz

1kV

2kV

1kV

20V

Criterion A

Criterion A

Criterion A

Criterion A

Mains voltage dips

Voltage interruptions

Voltage sags

EN 61000-4-11 0% of 100Vac

40% of 100Vac

70% of 100Vac

0% of 200Vac

40% of 200Vac

70% of 200Vac

80% of 120Vac (96Vac)

70% of 120Vac (84Vac)

50% of 120Vac (60Vac)

0Vac, 20ms

40Vac, 200ms

70Vac, 500ms

0Vac, 20ms

80Vac, 200ms

140Vac, 500ms

Criterion A

Criterion C

Criterion A

Criterion A

Criterion A

Criterion A

EN 61000-4-11 0% of 200Vac

SEMI F47

0Vac, 5000ms Criterion C dips on the input voltage according to SEMI F47 standard

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. Power supply may shut-down and restarts by itself. No damage or hazards for the power supply will occur.

EMC Emission

Conducted emission input lines

Conducted emission output lines **)

EN 55011, EN 55015, EN 55032,

FCC Part 15, CISPR 11, CISPR 32

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1

Class B for AC Input voltages and Class A for DC input voltages

8dB higher than average limits for DC power port according to EN 61000-6-3 **)

Radiated emission

Harmonic input current

EN 55011, EN 55032

EN 61000-3-2

Class B

Class A fulfilled between 0A and 12A load

Class C fulfilled between 6A and 12A load

Fulfilled *) Voltage fluctuations, flicker EN 61000-3-3

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 or EN 61000-6-4

Restrictions apply only 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.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


16/28

CP20.241-M1


17.

E

NVIRONMENT

Operational temperature *) -25°C to +70°C

Non-operational temperature

-40°C to +85°C

Output derating 12W/K

Humidity

Atmospheric pressure

Vibration sinusoidal

Shock

Altitude

**)

Altitude derating

Over-voltage category

5 to 95% r.h.

110-70kPa

2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g ***)

2 hours / axis ***)

30g 6ms, 20g 11ms ***)

3 bumps / direction, 18 bumps in total

Reduce output power according Fig. 17-1

For storage and transportation

Between 60°C and 70°C

For operation, storage and transportation according to IEC 60068-2-30

For operation, storage and transportation

IEC 60068-2-6

IEC 60068-2-27

Up to 3000m

1.33A/1000m or 5K/1000m

See Fig. 17-2 for details

For altitudes >2000m, see Fig. 17-2

The derating is not hardware controlled. The user has to take this into consideration to stay below the derated current limits in order not to overload the unit.

III Altitudes up to 2000m according to IEC/EN

62477-1

*) 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

***) Tested in combination with DIN rails according to EN 60715 with a height of 15mm and a thickness of 1.3mm and standard orientation

Fig. 17-1 Output current vs. ambient temp. Fig. 17-2 Output current vs. altitude

Allowed Output Current at 24V

20A

15A

(b)

(a)

Allowed Output Current at 24V

20A

18.6A

(a)

(b)

0

-25

(a) 90 to 264Vac, continuous

(b) short term

(max. 60s every 10 minutes)

0 45 60 70°C

Altitude

AP *)

0m

110kPa

*) Atmospheric pressure

2000m 3000m

80kPa 70kPa

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


17/28

CP20.241-M1


18.

S

AFETY AND

P

ROTECTION

F

EATURES

Input / output separation 1) SELV

PELV

IEC/EN 61010-2-201

IEC/EN 60204-1, IEC/EN 62477-1, IEC 60364-4-41 double or reinforced insulation

Transformers

Class of protection

Isolation resistance

PE resistance

Earth leakage current 2) 3) , medical

Safety Isolating

Transformers acc. IEC/EN 61558-2-16

I min. 500MOhm max. 0.1Ohm

Safety Isolating Transformers corresponding to Part 2-6 of the IEC/EN 61558

PE (Protective Earth) connection required

Input to output, measured with 500Vdc

PE terminal to enclosure t.b.d. t.b.d. t.b.d. t.b.d.

264Vac, 60Hz, normal condition


264Vac, 60Hz, single fault condition


Touch current 2) 3) , medical,

Mains to enclosure


Mains to output GND (-) pole t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d. t.b.d.










Mains to output plus (+) pole t.b.d. t.b.d.


264Vac, 60Hz, normal condition t.b.d. t.b.d.



1) Double or reinforced insulation

2) After humidity preconditioning treatment

3) No classification according class B, BF and CF since the power supply is not suitable for application parts with direct patient contact.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


18/28

CP20.241-M1

Earth, PE

CP-Series

C


19.

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.

L

N

Fig. 19-1 Dielectric strength

Input

A

B *)

B

DC-ok

D

13

14

Type test

Factory test

Field test

A B C D

60s 3000Vac 4500Vac 1500Vac 500Vac

5s

5s

3000Vac 4000Vac 1000Vac

2700Vac 3500Vac

Cut-off current setting > 10mA > 5mA

800Vac

> 5mA

500Vac

500Vac

> 1mA

Output

+

-

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.

Insulation Safety Ratings

Input to Ground

Input to Output

Output to Ground

MOPP, MOOP

2MOPP, 2MOOP

MOPP, MOOP

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


19/28

CP20.241-M1


20.

A

PPROVED

, F

ULFILLED OR

T

ESTED

S

TANDARDS

IEC 60601-1

UL 60601-1 (2MOPP) planned

IEC 60068-2-60

ISA-71.04 G3

VDMA 24364

Medical 2MOPP

CB Scheme,

Medical electrical equipment – Part 1: General requirements for basic safety and essential performance

2MOPP and 2MOOP

(Except risk assessment)

UL Certificate

Recognized component for category QQHM - UL 60601-1 Medical

Electrical Equipment - General Requirements for Safety

Applicable for US and Canada

E207953

2MOPP

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 10 years.

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 10 years

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

21.

R

EGULATORY

P

RODUCT

C

OMPLIANCE

EU Declaration of

Conformity

REACH Regulation (EU)

WEEE Regulation

The CE mark indicates conformance with the

- EMC directive

- Low-voltage directive

- RoHS directive

Manufacturer's Declaration

EU regulation regarding the Registration, Evaluation,

Authorisation and Restriction of Chemicals (REACH) fulfilled.

EU Regulation (EC) 1907/2006.

Manufacturer's Declaration

EU Regulation on Waste Electrical and Electronic Equipment

Registered as business to business (B2B) products.

EU Regulation 2012/19/EU

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


20/28

CP20.241-M1


22.

P

HYSICAL

D

IMENSIONS AND

W

EIGHT

Width

Height

Depth

Weight

DIN rail

Housing material

48mm

124mm

127mm

The DIN rail depth must be added to the unit depth to calculate the total required installation depth.

830g

Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.

Body: Aluminium alloy

Cover: Zinc-plated steel

Installation clearances

See chapter 2

Penetration protection Small parts like screws, nuts, etc. with a diameter larger than 5mm

Fig. 22-1 Front view Fig. 22-2 Side view

All dimensions in mm All dimensions in mm

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


21/28

CP-Series

23.

A

CCESSORIES

CP20.241-M1


23.1.

ZM10.WALL

W

ALL

/P

ANEL

M

OUNT

B

RACKET

This bracket is used to mount the devices on a wall/panel without utilizing the DIN rail. The bracket can be mounted without detaching the DIN rail brackets from the power supply. PSU for illustration purpose only.

Fig. 23-1 Isometric view Fig. 23-2 Isometric view Fig. 23-3 Isometric view

Fig. 23-4

Wall/panel mounting, side view

42

Fig. 23-5 Hole pattern for wall mounting

9

42

24

Fig. 23-6 Wall/panel mounting, side view

149 136

125

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


22/28

CP-Series

CP20.241-M1


23.2.

ZM12.SIDE

S

IDE

M

OUNTING

B

RACKET

This bracket is used to mount the device 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.

Fig. 23-7

ZM12.SIDE Side mounting bracket*) Fig. 23-8 Side mounting with DIN rail brackets*)

*) PSU for illustration purpose only.

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


23/28

CP-Series

24.

A

PPLICATION

N

OTES

CP20.241-M1


24.1.

P

EAK

C

URRENT

C

APABILITY

The unit 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. 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 three examples show typical voltage dips for resistive loads:

Fig. 24-1 40A peak current for 50ms, typ.

(2x the nominal current)





Peak current voltage dips

Please note: The DC-OK relay might trigger when the voltage dips more than 10% for longer than 1ms.

Typ. from 24V to 16V



At 40A for 50ms, resistive load



Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


24/28

CP20.241-M1


24.2.

O

UTPUT

C

IRCUIT

B

REAKERS

Standard miniature circuit breakers (MCB’s or UL 1077 circuit breakers) are commonly used for AC-supply systems and may also be used on 24V 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. 24-4 Test circuit Maximal wire length *) for a fast (magnetic) tripping:

C-2A

C-3A

C-4A

0.75mm² 1.0mm²

31 m

28 m

18 m

37 m

34 m

25 m

1.5mm²

63 m

51 m

38 m

2.5mm²

98 m

78 m

58 m

Power Supply

AC

+

MCB

Wire length

S1

+

Load

C-6A

C-8A

C-10A

C-13A

9 m

6 m

4 m

2 m

11 m

7 m

6 m

2 m

18 m

12 m

11 m

4 m

26 m

14 m

13 m

7 m

DC

-

S1... Fault simulation switch

-

B-6A 23 m 28 m 46 m 66 m

B-10A 11 m 14 m 19 m 32 m

B-13A 7 m 11 m 16 m 29 m

B-16A 5 m 6 m 8 m 15 m

B-20A 1 m 1 m 2 m 4 m

B-25A

*) Don’t forget to consider twice the distance to the load (or cable length) when calculating the total wire length (+ and – wire).

1 m

24.3.

C

HARGING OF

B

ATTERIES

The power supply can be used to charge lead-acid or maintenance free batteries (SLA or VRLA batteries). Two 12V batteries are needed 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-ofcharge 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 15A or 16A 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) Ensure that the ambient temperature of the power supply stays below 40°C. f) The return current to the power supply (battery discharge current is typ. 3.5mA when the power supply is switched off (except in case a blocking diode is utilized).

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


25/28

CP20.241-M1


24.4.

S

ERIES

O

PERATION

Do not use multiple power supplies in series. The leakage current will be too high to meet the medical requirements.

24.5.

P

ARALLEL

U

SE TO

I

NCREASE

O

UTPUT

P

OWER

Do not use multiple power supplies in parallel. The leakage current will be too high to meet the medical requirements.

24.6.

P

ARALLEL

U

SE FOR

R

EDUNDANCY

Do not use multiple power supplies in parallel. The leakage current will be too high to meet the medical requirements.

24.7.

I

NDUCTIVE AND

C

APACITIVE

L

OADS

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 larger than 1.5F are connected to the output, the unit might charge the capacitor in the Hiccup PLUS mode

24.8.

O

PERATION ON

T

WO

P

HASES

The power supply can also be used on two-phases of a three-phasesystem. Such a phase-to-phase connection is allowed if the supplying voltage is below 240V +10% .

Ensure that the wire, which is connected to the N-terminal, is appropriately fused.

The maximum allowed voltage between a Phase and the PE must be below 300Vac.

L3

L1

Power Supply

AC

L

N

PE

DC

L2

24.9.

U

SE IN A

T

IGHTLY

S

EALED

E

NCLOSURE

When the device 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 device.

In the following test setup, the device is placed in the middle of the box, no other heat producing items are inside the box. The load is placed outside the box.

The temperature sensor inside the box is placed in the middle of the right side of the power supply with a distance of

1cm.

The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.

Enclosure size

Input voltage

Case A

180x180x165mm

Rittal Typ IP66 Box

PK 9519 100, plastic

230Vac

Load 24V, 16A; (= 80% )

Temperature inside the box 51.7°C

Temperature outside the box 25.9°C

Temperature rise 25.8K

Case B

180x180x165mm

Rittal Typ IP66 Box

PK 9519 100, plastic

230Vac

24V, 20A; (= 100% )

55.8°C

25.6°C

30.2K

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


26/28

CP20.241-M1


24.10.

M

OUNTING

O

RIENTATIONS

Mounting orientations other than input terminals on the bottom and output on the top require a reduction in continuous output power or a limitation in the maximum allowed ambient temperature.

The listed lifetime and MTBF values from this datasheet apply only for the standard mounting orientation.

The test environment is set up installing wiring ducts (depth: 80mm) with clearances seen in chapter 2.

The following curves give an indication for allowed output currents for altitudes up to 2000m.

Curve A: AC Input voltage Range A (120-240V)

Curve B: AC Input voltage Range B (100-240V)

Fig. 24-5

Mounting

Orientation A

(Standard orientation)

Output Current

20A

5

0

10 20

Ambient Temperature

30 40 50 60 70°C

Fig. 24-6

Mounting

Orientation B

(Upside down)

Output Current

20A

Fig. 24-7

Mounting

Orientation C

(Table-top mounting)

5

0

10 20

Ambient Temperature

30 40 50 60 70°C

Output Current

18

5

0

10 20 25

Ambient Temperature

30 40 50 60 70°C

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


27/28

Fig. 24-8

Mounting

Orientation D

(Horizontal cw)

CP-Series

Fig. 24-9

Mounting

Orientation E

(Horizontal ccw)

CP20.241-M1


Output Current

20A

5

0

10 20 25

Ambient Temperature

30 40 50 60 70°C

Output Current

18

5

0

10 20 25

Ambient Temperature

30 40 50 60 70°C

Aug. 2022 / Rev. 0.3 DS-CP20.241-M1-EN


28/28

No results