Puls DIMENSION CT-Series, DIMENSION CT10.241, DIMENSION CT10.241-C1 User Manual

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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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P

OWER SUPPLY

 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

P

RODUCT 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 pc­boards 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.

S

HORT-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

O

RDER 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

M

AIN APPROVALS

For details or a complete approval list see section 18.

IND. CONT. EQ.

UL 60950-1

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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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I

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 ........................................................... 17

19. Other Fulfilled Standards ................................. 17

20. Physical Dimensions and Weight ..................... 18

21. Accessories ........................................................ 19

21.1. ZM1.WALL – Wall/Panel Mount Bracket . 19

21.2. ZM13.SIDE - Side Mount Bracket ............. 20

21.3. YRM2.DIODE - Redundancy Modules ...... 21

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

22.1. Peak Current Capability ........................... 22

22.2. Output Circuit Breakers ............................ 23

22.3. Charging of Batteries ............................... 23

22.4. Series Operation ....................................... 24

22.5. Parallel Use to Increase Output Power .... 24

22.6. Parallel Use for Redundancy .................... 25

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

22.8. Use in a Tightly Sealed Enclosure ............ 27

22.9. Mounting Orientations ............................ 28

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.

T

ERMINOLOGY AND ABBREVIATIONS

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.

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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. I

NTENDED USE

This device is designed for installation in an enclosure and is intended for the general professional use such as in
industrial control, office, communication, and instrumentation equipment.

Do not use this power supply in equipment, where malfunction may cause severe personal injury or threaten human
life.

2. I

NSTALLATION 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).

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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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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.

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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. 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

Min.

3x 323-576Va

Continuous operation

Min. 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

Ex

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 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

V

IN

P

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

0 2 4 6 8 10

0

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

3x

400Vac

3x

480Vac

Output Current

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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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4. DC-I

NPUT

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

5. I

NPUT 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. 10A

peak

10A

peak

Temperature independent

Typ.

4A

peak

4A

peak

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

May 2018 / Rev. 2.0a 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. DC O

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

Min. 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

Ripple 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 20V.

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.

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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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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

0 9

18

4

8

12

28V

16

20

24

30A21123

6 15

24 27

Adjustment

Range

Output Current

Extra
current
for 20ms

Continuous

current

Factory

setting

Output Voltage (Parallel Use, typ.)

22V

0 4 8

23V

24V

25V

29V

26V

27V

28V

12A

1062

Adjustment

Range

Factory
setting

Output Current

7. H

OLD-UP TIME

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

0

20

40

60

100ms

320 360

400 440 3x480Vac

Input Voltage

Hold-up Time at 24Vdc

5A, typ.

10A, typ.

10A, min.

5A, min.

80

- 5%

Hold-up Time

Output
Voltage

Input
Voltage

L1 L2 L3

CT10.241, CT10.241-C1

CT-Series

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

May 2018 / Rev. 2.0a 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. E

FFICIENCY AND POWER LOSSES

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

2

90

91

92

89

93%

12A

4

8 10

Output Current

6

3x480Vac
3x400Vac

Power Losses

0 2 4 8 10

12A

0

3

9

12

18

21

24W

Output Current

6

6

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 3x550Vaf

92.0

92.2

92.4

92.6

Input Voltage

92.8

93.0

93.2%

Power Losses

350 400

450

500 3x550Vaf

17.0

17.5

18.0

18.5

Input Voltage

19.0

19.5

20W