CT10.241 Datasheet by PULS, LP

Datasheet Feedback/Errors

PULS DIMENSION |MA l: ® us llSTEll SEMI F47 a“ US DNV-GL dnvg|.com/af IECEE CE SCHEME £5“

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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1/29

OWER

UPPLY

 3AC 380-480V Wide-range Input

 2 or 3-Phase Operation Possible

 Width only 62mm

 Efficiency up to 92.9% Due to Synchronous Rectifier

 Excellent Partial Load Efficiency

 20% Output Power Reserves

 Easy Fuse Tripping Due to High Overload Current

 Input -Transient Blanking Circuit Included

 Minimal Inrush Current Surge

 Three Input Fuses Included

 Current Sharing Feature for Parallel Use

 Full Power Between -25°C and +60°C

 3 Year Warranty

PRODUCT 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

CT10.241 are the high efficiency, electronic inrush

current limitation, active input transient filter and wide

operational temperature range. The small size is

achieved by a synchronous rectification and further

technological design details.

The CT10.241-C1 is equipped with conformal coated pc-

boards preferred for applications in harsh areas.

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 CT10.241 can deliver 3

times the nominal output current for 10ms which helps

to trip fuses on faulty output branches.

SHORT-FORM DATA

Output voltage

DC 24V Nominal

Adjustment range

24 - 28V Factory setting 24.1V

Output current

12.0 - 10.3A Below +45°C ambient

10.0 - 8.6A

At +60°C ambient

7.5 – 6.5A At +70°C ambient

Derate linearly between +45°C and +70°C

Input voltage AC

3AC 380-480V -15%/+20%

Mains frequency

50-60Hz

±6%

Input current AC

0.7 / 0.6A At 3x400 / 480Vac

Power factor

0.53 / 0.52

At 3x400 / 480Vac

AC Inrush current

4 / 4Apk

At 3x400 / 480Vac

Efficiency

92.8 / 92.9% At 3x400 / 480Vac

Losses

18.6 / 18.3W

At 3x400 / 480Vac

Hold-up time

34 / 54ms

At 3x400 / 480Vac

Temperature range

-25°C to +70°C

Size (WxHxD)

62x124x117mm Without DIN-rail

Weight

750g / 1.65lb

ORDER NUMBERS

Power Supply CT10.241

CT10.241-C1 With conformal coated

pc-boards

Mechanical Accessory

ZM1.WALL Wall/panel mount bracket

ZM13.SIDE Side mount bracket

MAIN APPROVALS

UL 508 UL 60950-1 IEC 60950-1

Marine ClassI Div 2

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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2/29

NDEX

Page Page

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

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

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

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

5. Input Inrush Current ...........................................6

6. DC Output............................................................7

7. Hold-up Time .......................................................8

8. Efficiency and Power Losses................................9

9. Functional Diagram ........................................... 10

10. Front Side and User Elements ........................... 10

11. Connection Terminals ....................................... 11

12. Lifetime Expectancy .......................................... 12

13. MTBF .................................................................. 12

14. EMC .................................................................... 13

15. Environment ...................................................... 14

16. Safety and Protection Features ........................ 15

17. Dielectric Strength ............................................ 16

18. Approvals and Fulfilled Standard ..................... 17

19. Regulatory Compliance .................................... 18

20. Physical Dimensions and Weight ..................... 19

21. Accessories ........................................................ 20

21.1. ZM1.WALL – Wall/Panel Mount Bracket . 20

21.2. ZM13.SIDE - Side Mount Bracket ............. 21

21.3. YRM2.DIODE - Redundancy Modules ...... 22

22. Application Notes ............................................. 23

22.1. Peak Current Capability ........................... 23

22.2. Output Circuit Breakers ............................ 24

22.3. Charging of Batteries ............................... 24

22.4. Series Operation ....................................... 25

22.5. Parallel Use to Increase Output Power .... 25

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

22.7. Operation on Two Phases ........................ 27

22.8. Use in a Tightly Sealed Enclosure ............ 28

22.9. Mounting Orientations ............................ 29

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.

ERMINOLOGY AND

BBREVIATIONS

PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .

Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.

T.b.d. To be defined, value or description will follow later.

AC 400V A figure displayed with the AC or DC before the value represents a nominal voltage with

standard tolerances (usually ±15%) included.

E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)

400Vac 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 380V and AC 400V parameters are valid at 50Hz and AC

480V parameters are valid at 60Hz 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.

PULS I DIMENSION 1.| U 2.| |

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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3/29

1. I

NTENDED

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 INSTRUCTIONS

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.

- 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 into the housing.

- Do not use in wet locations or in areas where moisture or condensation can be expected.

- Do not touch during power-on, and immediately after power-off. Hot surface may cause burns.

Obey the following installation requirements:

This device may only be installed and put into operation by qualified personnel.

This device does not contain serviceable parts. If damage or malfunction should occur during installation or operation,

immediately turn power off and send unit to the factory for inspection. The tripping of an internal fuse is caused by an

internal defect.

Install device in an enclosure providing protection against electrical, mechanical and fire hazards.

Install the device onto a DIN-rail according to EN 60715 with the input terminals on the bottom of the device. Other

mounting orientations require a reduction in output current.

Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that are

designed for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient

temperatures up to +60°C and 90°C for ambient temperatures up to +70°C. Ensure that all strands of a stranded wire

enter the terminal connection.

Unused screw terminals should be securely tightened.

The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost allowed.

The enclosure of the device provides a degree of protection of IP20.

The isolation of the device is designed to withstand impulse voltages of overvoltage category III according to IEC

60664-1. For corner grounded delta systems, the overvoltage category level is reduced to level II.

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- and IT mains networks. The voltage between the L terminals and

the PE terminal must not exceed 500Vac 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 6000m (19685ft). See additional requirements in this document for use above

2000m (6560ft).

IIIIIIIII

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

4/29

Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side.

Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device is permanently loaded with

less than 50%, the 5mm can be reduced to zero.

The device is designed, tested and approved for branch circuits up to 32A (IEC) and 30A (UL) without additional

protection device. If an external fuse is utilized, do not use circuit breakers smaller than 6A B- or C-Characteristic to

avoid a nuisance tripping of the circuit breaker.

The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the same as the ambient

or surrounding air temperature and is defined 2cm below the device.

The device is designed to operate in areas between 5% and 95% relative humidity.

Installation Instructions for Hazardous Location Areas

The device is suitable for use in Class I Division 2 Groups A, B, C, D locations.

WARNING EXPLOSION HAZARDS!

Substitution of components may impair suitability for this environment.

Do not disconnect the device or operate the voltage adjustment unless power has been switched off or the area is

known to be non-hazardous.

PULS I DIMENSION 3. AC-I Tum \ \ \ \ ‘1‘, ”r”T”T”7”7”1 \ x x x x x 7 +77+77+774774 Inpul Cunem, typ. ,, ,,4,,4 \ x \ ”7”7”1 74774774 Output (ulrenl ;

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

5/29

3. AC-I

NPUT

The device is suitable to be supplied from TN-, TT- and IT mains networks with AC voltage. Grounding of one phase is

allowed except for UL508 applications.

The device can also operate on only two legs of the three-phase system. See chapter 22.7 for more information.

AC input

Nom. 3AC 380-480V

AC input range

3x 323-576Va Continuous operation

3x 576-700Vac For maximal 1s (occasional)

Allowed voltage L or N to earth

Max. 500Vac Continuous operation, according to IEC 62477-1

Input frequency

Nom. 50–60Hz ±6%

Turn

-on voltage Typ. 3x 260Vac Steady-state value, see Fig. 3-1

Shut

-down voltage Typ. 3x 185Vac Steady-state value, see Fig. 3-1

ternal input protection See recommendations in chapter 2.

3AC 400V 3AC 480V

Input current

Typ. 0.7A 0.6A At 24V, 10A, per phase, see Fig. 3-3

Power factor

Typ.

0.53

0.52

At 24V, 10A, see Fig. 3-4

Start-up delay

Typ.

90ms

See Fig. 3-2

Rise time

Typ. 40ms 40ms At 24V, 10A const. current load, 0mF load

capacitance, see Fig. 3-2

Typ. 85ms 85ms At 24V, 10A const. current load, 10mF load

capacitance, see Fig. 3-2

Turn

-on overshoot Max. 200mV 200mV See Fig. 3-2

Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, definitions

Turn-on

323V

Rated input

range

OUT

185V 576V

Shut-down

260V 3x700Vac

< 1s

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

12A

0246810

0.1

0.2

0.3

0.4

0.8A

Input Current, typ.

0.5

Output Current

3x 400Vac

3x 480Vac

0.6

0.7

Power Factor, typ.

0 2 4 6 8 10 12A

0.35

0.4

0.45

0.5

0.55

0.6

400Vac

480Vac

Output Current

PULS I DIMENSION 4. DC-I

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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6/29

4. DC-I

NPUT

Do not use the power supply with DC-input voltages.

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.

3AC 400V 3AC 480V

Inrush current

Max. 10Apeak 10Apeak Temperature independent

Typ. 4Apeak 4Apeak Temperature independent

Inrush energy

Max. 0.5A2s 0.5A2s Temperature independent

Fig. 5-1 Typical input inrush current

behaviour at nominal load and 25°C ambient

20ms/DIV

Input current 1A/DIV

Input voltage 500V/DIV

Output voltage

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

7/29

6. DC

UTPUT

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

The device is designed to supply any kind of loads, including unlimited capacitive and inductive loads.

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

audible noise may occur.

Output voltage

Nom. 24V

Adjustment range

24-28V Guaranteed value

Max. 30V 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.

Factory setting output voltage

Typ.

24.1V

±0.2% in “single use” mode at full load, cold unit

Typ. 24.1V ±0.2% in “parallel use” mode at 10A, cold unit

(results to 23.9V ±0.7% at 12A and 25.0V ±0.2% at no

load)

Line regulation

Max. 10mV Between 3x 323 and 3x 576Vac input voltage change

Load regulation

Max. 100mV Between 0 and 10A in “single use” mode, static value

Typ. 1000mV Between 0 and 10A in “parallel use” mode, static

value, see Fig. 6-2

Rippl

e and noise voltage Max. 50mVpp Bandwidth 20Hz to 20MHz, 50Ohm

Output current

Nom. 12A1) At 24V and an ambient temperature below 45°C

Nom. 10A At 24V and 60°C ambient temperature

Nom.

7.5A

At 24V and 70°C ambient temperature

Nom. 10.3A1) At 28V and an ambient temperature below 45°C

Nom. 8.6A At 28V and 60°C ambient temperature

Nom.

6.5A

At 28V and 70°C ambient temperature

Reduce output current linearly between +45°C and +70°C

Fuse breaking current

Typ. 23A Up to 20ms once every five seconds, see Fig. 6-1.

The fuse braking current is an enhanced transient

current which helps to trip fuses on faulty output

branches. The output voltage stays above 40V.

Overload behavior

Continuous current

See Fig. 6-1

Overload/ short

-circuit current Max. 23A Continuous current, see Fig. 6-1

Output capacitance

Typ. 6 500µF 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) This current is also available for temperatures up to +70°C with a duty cycle of 10% and/ or not longer than 1 minute every 10 minutes.

30A T PULS 7.H D-

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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8/29

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 9 18

28V

30A21123615 24 27

Adjustment

Range

Output Current

Extra

current

for 20ms

Continuous

current

Factory

setting

Output Voltage (Parallel Use, typ.)

22V

048

23V

24V

25V

29V

26V

27V

28V

12A

1062

Adjustment

Range

Factory

setting

Output Current

7. H

OLD

IME

3AC 400V 3AC 480V

Hold

-up Time Typ. 34ms 54ms At 24V, 10A, see Fig. 7-1

Typ. 68ms 108ms At 24V, 5A, see Fig. 7-1

Min 28ms 44ms At 24V, 10A, see Fig. 7-1

Min. 56ms 87ms At 24V, 5A, see Fig. 7-1

Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions

100ms

320 360 400 440 3x480Vac

Input Voltage

Hold-up Time at 24Vdc

5A, typ.

10A, typ.

10A, min.

5A, min.

- 5%

Hold-up Time

Output

Voltage

Input

Voltage

L1 L2 L3

1, T”T L77L774774 \ ”1””T””r”’1 ”’1””T””F”’1 PULS DIMENSION 8.E

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

9/29

8. E

FFICIENCY AND

OWER

OSSES

3AC 400V 3AC 480V

Efficiency

Typ. 92.8% 92.9% At 24V, 10A, 3-phase operation

Typ. 92.4% 92.6% At 24V, 10A, when using only two legs of a 3-

phase system, see also chapter 22.7.

Average efficiency *)

Typ. 92.2% 92.0% 25% at 2.5A, 25% at 5A, 25% at 7.5A. 25% at

10A, 3-phase operation

Power losses

Typ. 2.3W 2.6W At 0A, 3-phase operation

Typ. 11.8W 11.8W At 24V, 5A, 3-phase operation

Typ. 18.6W 18.3W At 24V, 10A, 3-phase operation

Typ. 23.5W 22.8W At 24V, 12A, 3-phase operation

*) 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. 8-1 Efficiency vs. output current at 24V,

typ., 3-phase operation

Fig. 8-2 Losses vs. output current at 24V,

typ., 3-phase operation

Efficiency

93%

12A

4 8 10

Output Current

3x480Vac

3x400Vac

Power Losses

0 2 4 8 10 12A

24W

Output Current

15 3x480Vac

3x400Vac

3x480Vac

3x400Vac

Fig. 8-3 Efficiency vs. input voltage at 24V,

10A, typ., 3-phase operation

Fig. 8-4 Losses vs. input voltage at 24V, 10A,

typ., 3-phase operation

Efficiency

350 400 450 500 3x550Vac

92.0

92.2

92.4

92.6

Input Voltage

92.8

93.0

93.2%

Power Losses

350 400 450 500 3x550Vac

17.0

17.5

18.0

18.5

Input Voltage

19.0

19.5

20W

DIMENSION PULS I 10 F S U E 0 A A v + 5 MW“ e mum um S 9 CH“ PowevSIAIJW mamwv L1 L2 L3 @ g 0000 9

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

10/29

9. F

UNCTIONAL

IAGRAM

Fig. 9-1 Functional diagram

VOUT

Output

Over-

Voltage

Protection

PFC

Inductor

Inrush

Limiter

Transient

Filter

Input Fuses

Input Filter

Input

Rectifier

Output

Voltage

Regulator

Power

Converter Output

Filter

Output

Power

Manager

Temper-

ature

Shut-

down

DC-ok

LED

Single /

Parallel

10. F

RONT

IDE AND

SER

LEMENTS

Fig. 10-1 Front side

A Output Terminals

+ Positive output (two identical + poles)

– Negative/ return output (two identical - poles)

B Input Terminals

L1, L2, L3 Line input

PE (Protective Earth) input

C Output voltage potentiometer

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

D Jumper for “Parallel Use” “Single Use”

Set the jumper to “Parallel Use” when devices are connected in parallel

to increase the output power. In order to achieve a sharing of the load

current between the individual power supplies, the “Parallel Use”

regulates the output voltage in such a manner that the voltage at no

load is approx. 4% higher than at nominal load.

A missing jumper equals “Single Use” mode, which is also the factory

setting.

E DC-OK LED (green)

On, when the output voltage is above 21V.

PULS I DIMENSION

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

11/29

11. C

ONNECTION

ERMINALS

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

Input Output

Type

Screw termination Screw termination

Solid wire

Max. 6mm2 Max. 6mm2

Stranded wire

Max. 4mm2 Max. 4mm2

American Wire Gauge

AWG 20-10 AWG 20-10

Max. wire diameter (including ferrules)

2.8mm 2.8mm

Recommended tightening torque

1Nm, 9lb-in 1Nm, 9lb-in

Wire stripping length

7mm / 0.28inch 7mm / 0.28inch

Screwdriver

3.5mm slotted or Phillips No 1 3.5mm slotted or Phillips No 1

Daisy chaining:

Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current

through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block as

shown in Fig. 11-2.

Fig. 11-1 Daisy chaining of outputs Fig. 11-2 Using distribution terminals

Load

Power

Supply

+ +

- -

Output

Power

Supply

+ +

- -

Output

max 25A!

continuous

Distribution

Terminals

Load

Power

Supply

+ + - -

Output

Power

Supply

+ + - -

Output

PULS I DIMENSION 12. L E 13. MTBF

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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12/29

12. L

IFETIME

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.

3AC 400V 3AC 480V

Lifetime expectancy

54 000h

62 000h

At 24V, 10A and 40°C, 3-phase operation

133 000h 134 000h At 24V, 5A and 40°C, 3-phase operation

41 000h 47 000h At 24V, 12A and 40°C, 3-phase operation

151 000h

176 000h

At 24V, 10A and 25°C, 3-phase operation

376 000h 379 000h At 24V, 5A and 25°C, 3-phase operation

116 000h 133 000h At 24V, 12A and 25°C, 3-phase operation

Lifetime expectancy

48 000h 58 000h At 24V, 10A and 40°C, 2-phase operation

134 000h 145 000h At 24V, 5A and 40°C, 2-phase operation

36 000h 42 000h At 24V, 12A and 40°C, 2-phase operation

135 000h 164 000h At 24V, 10A and 25°C, 2-phase operation

379 000h 410 000h At 24V, 5A and 25°C, 2-phase operation

102 000h 119 000h At 24V, 12A and 25°C, 2-phase operation

13. 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.

3AC 400V 3AC 480V

BF SN 29500, IEC 61709 975 000h 985 000h At 24V, 10A and 40°C, 3-phase operation

1 706 000h 1 723 000h At 24V, 10A and 25°C, 3-phase operation

925 000h 939 000h At 24V, 10A and 40°C, 2-phase operation

1 633 000h 1 656 000h At 24V, 10A and 25°C, 2-phase operation

MTBF MIL HDBK 217F

444 000h 428 000h At 24V, 10A and 40°C, 3-phase Ground Benign GB40

584 000h 563 000h At 24V, 10A and 25°C, 3-phase Ground Benign GB25

100 000h 100 000h At 24V, 10A and 40°C, 3-phase Ground Fixed GF40

132 000h 132 000h At 24V, 10A and 25°C, 3-phase Ground Fixed GF25

436 000h 423 000h At 24V, 10A and 40°C, 2-phase Ground Benign GB40

555 000h 572 000h At 24V, 10A and 25°C, 2-phase Ground Benign GB25

98 000h 98 000h At 24V, 10A and 40°C, 2-phase Ground Fixed GF40

129 000h 129 000h At 24V, 10A and 25°C, 2-phase Ground Fixed GF25

PULS I DIMENSION 14. EMC

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

13/29

14. EMC

The EMC behavior of the device is designed for applications in industrial environment as well as in residential,

commercial and light industry environments. The output is allowed to be grounded or floating.

The device is investigated according to the generic standards EN 61000-6-1, EN 61000-6-2, EN 61000-6-3 and EN 61000-

6-4.

Without additional measures to reduce the conducted emissions on the output (e.g. by using a filter), the

device is not suited to supply a local DC power network in residential, commercial and light-industrial

environments. No restrictions apply for local DC power networks in industrial environments.

EMC Immunity

Electrostatic discharge

EN 61000-4-2 Contact discharge

Air discharge

8kV

15kV

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

4kV

2kV

Criterion A

Surge voltage on input

EN 61000-4-5 L1  L2, L2  L3, L1  L3

L1 / L2 / L3  PE

2kV

4kV

Criterion A

Surge voltage on output

EN 61000-4-5 +  -

+ / -  PE

500V

1kV

Criterion A

Conducted disturbance

EN 61000-4-6 0.15-80MHz 10V Criterion A

Mains voltage dips

(Dips on three phases)

EN 61000-4-11

0% of 380Vac

0% of 480Vac

0Vac, 20ms

Criterion A

Mains voltage dips

(Dips on two phases)

EN 61000-4-11 40% of 380Vac

40% of 480Vac

70% of 380Vac

70% of 480Vac

200ms

500ms

Criterion A

Voltage interruptions

EN 61000-4-11 5s Criterion C

Powerful transients

VDE 0160 Over entire load range 1550V, 1.3ms Criterion A

Criterions:

A: The device shows normal operation behavior within the defined limits.

C: Temporary loss of function is possible. The device may shut down and restarts by itself. No damage or hazards for the device will occur.

EMC Emission

Conducted emis

sion

input lines

EN 55011, EN 55032, FCC Part 15, CISPR 11, CISPR 32 Class B

Radiated emission

EN 55011, EN 55032 Class B

Harmonic input current

EN 61000-3-2 Fulfilled for Class A equipment

Voltage fluctuations, flicker

EN 61000-3-3 Fulfilled, 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, includin

g interference that may cause undesired operation.

Switching Frequency

Mai

n converter 60kHz to 140kHz Output load and input voltage dependent

E PULS DIMENSION 15.

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

14/29

15. E

NVIRONMENT

Operational temperature

-25°C to +70°C (-13°F to 158°F) The operational temperature is the ambient or

surrounding temperature and is defined as the

air temperature 2cm below the device.

Storage temperature

-40°C to +85°C (-40°F to 185°F) For storage and transportation

Output de

-rating 3.2W/°C

6W/°C

15W/1000m or 5°C/1000m

9W/-5kPa or 3°C/-5kPa

Between +45°C and +60°C (113°F to 140°F)

Between +60°C and +70°C (140°F to 158°F)

For altitudes >2000m (6560ft), see Fig. 15-2

For atmospheric pressures <80kPa, see Fig. 15-2

The de-rating is not hardware controlled. The customer has to take care by himself 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

Atmospheric pressure

110-47kPa See Fig. 15-2 for details

Altitude

Up to 6000m (20 000ft)

See Fig. 15-2 for details

Over

-voltage category III According to IEC 60664-1 for altitudes up to

2000m

II According to IEC 60664-1 for altitudes from

2000 to 6000m and atmospheric pressures

from 80 to 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

ock 30g 6ms, 20g 11ms

3 bumps / 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.

Audible noise

Some audible noise may be emitted from the power supply during no load, overload or

short circuit.

Fig. 15-1 Output current vs. ambient temp. Fig. 15-2 Output current vs. altitude at 24V

-25 0 20 40 70°C

10A

12A

Ambient Temperature

A... Continuous

B... Short term

Allowed Output Current at 24V

2000m 4000m 6000m

10A

12A

Altitude

Allowed Output Current at 24V

80kPa 62kPa 47kPa110kPa

*) Atmospheric pressure

A... Ambient < 60°C

B... Ambient < 45°C

C... Short term

PULS I DIMENSION 16.5 P F

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

15/29

16. S

AFETY AND

ROTECTION

EATURES

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 shuts 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 de-rating 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 14 (EMC).

Internal input fuse

Included Not user replaceable slow-blow high-braking

capacity fuse

Touch current

(leakage current) Typ. 0.17mA At 3x 400Vac, 50Hz, TN-,TT-mains

Typ. 0.24mA At 3x 480Vac, 60Hz, TN-,TT-mains

Max.

0.22mA

At 3x 440Vac, 60Hz, TN-,TT-mains

Max. 0.31mA At 3x 528Vac, 50Hz, TN-,TT-mains

PULS I DIMENSION 17.D CS ll TTT \ / @D—

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

16/29

17. D

IELECTRIC

TRENGTH

The output voltage is floating and has no ohmic connection to the ground.

The output is insulated to the input by a double or reinforced insulation.

Type and routine 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. 17-1 Dielectric strength A B C

Input

Earth

Output

Type test 60s 2500Vac 3000Vac 500Vac

Routine test 5s 2500Vac 2500Vac 500Vac

Field test 5s 2000Vac 2000Vac 500Vac

Cut-off current setting

for field test > 10mA > 10mA > 30mA

It is recommend that either the + pole, the – pole or any other part

of the output circuit shall be connected to the earth/ground

system. This helps to avoid situations in which a load starts

unexpectedly or can not be switched off when unnoticed earth

faults occur.

PULS I DIMENSION 18.A DF 5 1: ® Ils LIS'IEII IECEE CB SCHEME c“ “S (5}. B "S DNV-GL dnvg|,com/af ABS SEMI F47 Corrosion Gs-ISA-71Ao4 LABS VDMAZASSHJHJW

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

17/29

18. A

PPROVALS AND

ULFILLED

TANDARD

UL 508

UL Certificate

Listed equipment for category NMTR - Industrial Control

Equipment

Applicable for US and Canada

E-File: E198865

IEC 60950

-1

CB Scheme Certificate

General safety requirements for Information Technology

Equipment (ITE)

UL 60950

-1

UL Certificate

Recognized component for category QQGQ - Information

Technology Equipment (ITE)

Applicable for US and Canada

E-File: E137006

Class I Div 2

CSA Certificate

Power Supplies for Hazardous Location

Applicable for Canada and US

CSA Class: 5318-01 (Canada), 5318-81 (USA)

Temperature Code: T3

Groups: A, B, C and D

Marine

(DNV GL)

DNV-GL Certificate

DNV-GL Type approved product

Certificate: 12508-10HH

Temperature: Class D

Humidity: Class B

Vibration: Class C

EMC: Class B

Enclosure: Class A

Marine

(ABS)

ABS Design Assessment Certificate

ABS (American Bureau of Shipment) assessed product

Certificate: 17-HG1599236-PD

SEMI F47

Test Report

Voltage Sag Immunity for Semiconductor Processing

Equipment

Tested for AC 208V L-L or L-N mains voltages, nominal

output voltage and nominal output load

ISA

-71.04-1985

Manufacturer's Declaration (Online Document)

Airborne Contaminants Corrosion Test

Severity Level: G3 Harsh

H2S: 100ppb

NOx: 1250ppb

Cl2: 20ppb

SO2: 300ppb

Test Duration: 3 weeks, which simulates a service life of at

least 10 years

VDMA 24364

Paint Wetting Impairment Substances Test (or LABS-Test)

Tested for Zone 2 and test class C1 according to VDMA

24364-C1-L/W for solvents and water-based paints

PULS I DIMENSION 19. R C CE REACH \/ [H[

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

18/29

19. REGULATORY COMPLIANCE

EU Declaration of Conformity

The CE mark indicates conformance with the

- EMC directive

- Low-voltage directive

- RoHS directive

REACH Directive

Manufacturer's Statement

EU-Directive regarding the Registration, Evaluation,

Authorisation and Restriction of Chemicals

EAC TR Registration

EAC Certificate

EAC EurAsian Conformity - Registration Russia, Kazakhstan

and Belarus

8504408200, 8504409000

IEC/EN 61558

-2-16

(

Annex BB)

Safety Isolating

Transformer

Safety Isolating Transformers corresponding to Part 2-6 of the

IEC/EN 61558

PULS DIMENSION 20. P 15 381 : + + » - OUTPUT Oulpu|Adlus|ﬂj 1-2Parzl1e1Usel 1 2-35ingleUse g DanO 1NPUT L1 L2 L3 FE W 31] 35.1 |C 62 124 117 DlNrRail depth

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

19/29

20. P

HYSICAL

IMENSIONS AND

EIGHT

Width

62mm 2.44’’

Height

124mm 4.88’’

Depth

117mm 4.61’’

The DIN-rail height must be added to the unit depth to calculate the total required

installation depth.

Weight

750g / 1.65lb

DIN-Rail

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

Housing material

Body: Aluminium alloy

Cover: zinc-plated steel

Installat

ion clearances See chapter 2

Penetration protection

Small parts like screws, nuts, etc. with a diameter larger than 3.5mm

Fig. 20-1 Front view Fig. 20-2 Side view

All dimensions in mm

PULS I DIMENSION 21.A 62 57 506 118

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

20/29

21. A

CCESSORIES

21.1. ZM1.WALL – WALL/PANEL MOUNT BRACKET

These brackets are used to mount the device on a flat surface or panel 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 in the holes of the aluminum brackets.

The order number ZM1.WALL contains two brackets needed for one device.

Fig. 21-1 ZM1.Wall Fig. 21-2 Hole pattern Fig. 21-3 Side view

All dimensions in mm

Fig. 21-4 Isometric view Fig. 21-5 Isometric view Fig. 21-6 Isometric view

PULS | DIMENSION «45 as

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

21/29

21.2. ZM13.SIDE - SIDE MOUNT BRACKET

This ZM13.SIDE bracket is used to mount the device sideways with or without utilizing a DIN-rail to save installation

depth.

The two aluminum brackets and the black plastic slider of the unit have to be detached, so that the ZM13.SIDE steel

bracket can be mounted.

For sideway DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on

the ZM13.SIDE steel bracket.

Fig. 21-7 ZM13.SIDE Fig. 21-8

Mounting instructions

Fig. 21-9

Side mounting

without DIN-rail brackets

Fig. 21-10

Side mounting

with DIN-rail brackets

Fig. 21-11

Hole pattern

All dimensions in mm

IIIIIIIII

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

22/29

21.3. YRM2.DIODE - REDUNDANCY MODULES

The YRM2.DIODE is a dual redundancy module, which can be used to build 1+1 or N+1

redundant systems.

The device is equipped with two input channels each 10A nominal, which are individually

decoupled by utilizing diode technology. The output can be loaded with nominal 20A.

The device does not require an additional auxiliary voltage and is self-powered even in case

of a short circuit across the output.

The device has a monitoring circuit included and is the perfect choice when the power supply

has no DC-OK function. Two LEDs and two relay contacts signal when one of the two input

voltages is not in range due to a non-functioning or disconnected power supply.

The unit is very slender and only requires 32mm width on the DIN-rail.

See chapter 22.6 for wiring information.

PULS DIMENSION 22. A N ES .. —'—.. ompm 2Av / Voltage ZAV 50A 0m LA (unpem\ 0A “Bug‘s/DIV Outpm / Vo‘tage /" ompm ‘ Currem 0A 1mS/DW

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

23/29

22. A

PPLICATION

OTES

22.1. PEAK CURRENT CAPABILITY

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 (including the PowerBoost). 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 examples show typical voltage dips for resistive loads:

Fig. 22-1 20A peak current for 50ms, typ.

(2x the nominal current)

Fig. 22-2 50A peak current for 5ms, typ.

(5x the nominal current)

Peak current voltage dips

Typ. from 24V to 6V At 20A for 50ms, resistive load

Typ. from 24V to 12V At 50A for 2ms, resistive load

Typ. from 24V to 3V At 50A for 5ms, resistive load

IIIIIIIII

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

24/29

22.2. OUTPUT CIRCUIT BREAKERS

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.

The following test results indicate the maximal wire length for a magnetic (fast) tripping. The wire length is always

two times the distance to the load (+ and – wire).

Fig. 22-3 Test circuit for maximum wire length Test results for maximum wire length:

MCB

Power

Supply

Load

Wire length

S1...... Fault Simulation Switch

0.75mm² 1.0mm² 1.5mm² 2.5mm²

-2A 23m 28m 43m 69m

-3A 18m 23m 34m 54m

-4A 6m 12m 18m 28m

-6A 3m 4m 6m 7m

-8A 2m 3m 4m 5m

-10A 1m 2m 3m 4m

-6A 9m 14m 19m 33m

-10A 4m 5m 6m 9m

-13A 3m 4m 5m 8m

22.3. CHARGING OF BATTERIES

The power supply can be used to charge lead-acid or maintenance free batteries. Two 12V SLA or VRLA batteries are

needed in series connection.

Instructions for charging batteries:

a) Ensure that the ambient temperature of the power supply stays below 45°C.

b) Set the output voltage, measured at no load and at the battery end of the cable, very precisely to the end-of-

charge voltage.

End-of-charge voltage 27.8V 27.5V 27.15V 26.8V

Battery temperature 10°C 20°C 30°C 40°C

c) Use a 16A circuit breaker or a blocking diode between the power supply and the battery.

d) Ensure that the output current of the power supply is below the allowed charging current of the battery.

e) Use only matched batteries when putting 12V types in series.

f) The return current to the power supply is typically 8mA. This return current can discharge the battery when the

power supply is switched off except in case a blocking diode is utilized.

IIIIIIIII

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

25/29

22.4. SERIES OPERATION

Devices of the same type can be connected in series for higher output

voltages. It is possible to connect as many units in series as needed, providing

the sum of the output voltage does not exceed 150Vdc. Voltages with a

potential above 60Vdc must be installed with a protection against touching.

Avoid return voltage (e.g. from a decelerating motor or battery) which is

applied to the output terminals.

Keep an installation clearance of 15mm (left / right) between two power

supplies and avoid installing the power supplies on top of each other. Do

not use power supplies in series in mounting orientations other than the

standard mounting orientation.

Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple devices.

22.5. PARALLEL USE TO INCREASE OUTPUT POWER

Devices can be paralleled to increase the output power. The output voltage

of all devices shall be adjusted to the same value (±100mV) in “Single Use”

mode with the same load conditions on all units, or the units can be left

with the factory settings. After the adjustments, set the unit to “Parallel

Use” mode, in order to achieve load sharing. The “Parallel Use” mode

regulates the output voltage in such a manner that the voltage at no load is

approx. 4% higher than at nominal load.

The ambient temperature is not allowed to exceed +60°C.

If more than three units are connected in parallel, a fuse or circuit breaker

with a rating of 15A or 16A is required on each output. Alternatively, a diode or redundancy module can also be

utilized.

Keep an installation clearance of 15mm (left / right) between two devices and avoid installing devices on top of each

other. Do not use devices in parallel in mounting orientations other than the standard mounting orientation or in any

other condition where a reduction of the output current is required (e.g. altitude).

Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple devices.

Unit B

Load

Unit A

Unit B

Load

Unit A

IIIIIIIII

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

26/29

22.6. PARALLEL USE FOR REDUNDANCY

1+1 Redundancy:

Devices can be paralleled for redundancy to gain higher system availability. Redundant systems require a certain

amount of extra power to support the load in case one device fails. The simplest way is to put two devices in parallel.

This is called a 1+1 redundancy. In case one device fails, the other one is automatically able to support the load current

without any interruption. It is essential to use a redundancy module to decouple devices from each other. This

prevents that the defective unit becomes a load for the other device and the output voltage cannot be maintained any

more.

For 1+1 redundancy the ambient temperature is not allowed to exceed +70°C.

Recommendations for building redundant power systems:

- Use separate input fuses for each device.

- Use separate mains systems for each device whenever it is possible.

- Monitor the outputs of the individual devices. Use the DC-ok contact, which is included in the redundancy module.

- It is desirable to set the output voltages of all devices to the same value (± 100mV) or leave it at the factory setting.

- Set the devices into “Parallel Use” mode.

Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple devices.

N+1 Redundancy:

Redundant systems for a higher power demand are usually built in a N+1 method. E.g. four devices, each rated for 10A

are paralleled to build a 30A redundant system.

Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple devices.

Keep an installation clearance of 15mm (left / right) between two devices and avoid installing the devices on top of

each other.

Do not use devices in parallel in mounting orientations other than the standard mounting orientation or in any other

condition, where a reduction of the output current is required.

For 1+1 redundancy the ambient temperature is not allowed to exceed +60°C.

Wiring examples for 1+1 and n+1 redundancy:

Fig. 22-4 1+1 Redundant configuration for

10A load current and redundancy modules

Fig. 22-5 N+1 Redundant configuration for 30A load current with multiple power

supplies and redundancy modules

Failure

Monitor

Power

Supply

+ +

- -

L1 L2 PE

Output

Input

I I

optional

Power

Supply

+ +

- -

L1 L2 PE

Output

Input

YRM2.DIODE

Redundancy

Module

Output

Input

o o o o

Input ok

YRM2.DIODE

Redundancy

Module

Output

Input

o o o o

Input ok

Load

Failure

Monitor

Power

Supply

+ +

- -

L1 L2 PE

Output

Input

I I

optional

Power

Supply

+ +

- -

L1 L2 PE

Output

Input

YRM2.DIODE

Redundancy

Module

Output

Input

o o o o

Input ok

YRM2.DIODE

Redundancy

Module

Output

Input

o o o o

Input ok

Load

I I

optional

Power

Supply

+ +

- -

L1 L2 PE

Output

Input

YRM2.DIODE

Redundancy

Module

Output

Input

o o o o

Input ok

I I

optional

Power

Supply

+ +

- -

L1 L2 PE

Output

Input

YRM2.DIODE

Redundancy

Module

Output

Input

o o o o

Input ok

PULS DIMENSION 7T7’77777 \ ’7’77777 J,,,J,,,L,,,},,J 7,,L,,,},,J

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

27/29

22.7. OPERATION ON TWO PHASES

No external protection device is required to protect against a phase-loss

failure.

The power supply is allowed to run permanently on only two legs of a 3-

phase system, when the output power is reduced according to the curves

below. A long-term exceeding of these limits will result in a thermal shut-

down of the device.

Pay attention that EMC performance, hold-up time and losses differ from a three phase operation. Therefore, check

suitability of your individual application.

Using only two legs of a 3-phase system is only included in the IEC/UL 60950-1 approval.

Fig. 22-6 Allowed output current for use on

only two legs of a 3-phase system

Fig. 22-7 Hold-up time for use on only two

legs of a 3-phase system

Allowed Output Current at 24V

-25 0 20 70°C

12A

40 60

Ambient Temperature

A... 2x 340-576Vac

B... 2x 320-340Vac

100ms

320 360 400 440 2x480Vac

Input Voltage

Hold-up Time at 24Vdc

5A, typ.

10A, typ.

10A, min.

5A, min.

Fig. 22-8 Efficiency vs. output current at 24V

for use on only two legs of a 3-phase system

Fig. 22-9 Losses vs. output current at 24V for

use on only two legs of a 3-phase system

Efficiency

94%

12A

4 8 10

Output Current

2x400Vac

2x480Vac

Power Losses

0 2 4 8 10 12A

24W

Output Current

2x480Vac

2x400Vac

open

Power Supply

IIIIIIIII

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

28/29

22.8. USE IN A TIGHTLY SEALED ENCLOSURE

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.

Case A Case B

Enclosure size

180x180x165mm

Rittal Typ IP66 Box

PK 9519 100,

plastic

180x180x165mm

Rittal Typ IP66 Box

PK 9519 100,

plastic

Input voltage

3x 400Vac 3x 400Vac

Load

24V, 8A; (=80%) 24V, 10A; (=100%)

Temperature inside the box

48.4°C 54.7°C

Temperature outside the box

24.5°C 24.9°C

Temperature rise

23.9K 29.8K

PULS

CT10.241, CT10.241-C1

CT-Series 3-PHASE, 24V, 10A, 240W

Nov. 2020 / Rev. 2.1 DS-CT10.241-EN All values are typical figures specified at 3x 400Vac, 50Hz input voltage, symmetrical

phase voltages, 24V, 10A output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

29/29

22.9. MOUNTING ORIENTATIONS

Mounting orientations other than input terminals on the bottom and output on the top require a reduction in

continuous output power or a limitation in the maximum allowed ambient temperature.

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

The following curves give an indication for allowed output currents for altitudes up to 2000m (6560ft).

Fig. 22-10

Mounting

Orientation A

(Standard

orientation) Power

Supply

OUTPUT

INPUT

Allowed Output Current at 24V

+45 +70°C

7.5A

10A

12A

Ambient Temperature

+60

Fig. 22-11

Mounting

Orientation B

(Upside down)

Power

Supply

OUTPUT

INPUT

Allowed Output Current at 24V

+30 +70°C

7.5A

12A

Ambient Temperature

+60

Fig. 22-12

Mounting

Orientation C

(Table-top

mounting)

Allowed Output Current at 24V

+25 +70°C

6.5A

12A

Ambient Temperature

+60

Fig. 22-13

Mounting

Orientation D

(Horizontal cw)

Power

Supply

OUTPUT

INPUT

Allowed Output Current at 24V

+25 +70°C

6.5A

12A

Ambient Temperature

+60

Fig. 22-14

Mounting

Orientation E

(Horizontal ccw)

Power

Supply

OUTPUT

INPUT

Allowed Output Current at 24V

+25 +70°C

6.5A

12A

Ambient Temperature

+60

CT10.241 Datasheet by PULS, LP

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