B&B Electronics NTPS-24-5 Datasheet

C–Series

1. GENERAL DESCRIPTION

The Dimension C-Series are cost optimized power
supplies without compromising quality, reliability
and performance. The C-Series is part of the
Dimension power supply family, existing alongside
the high featured Q-series.

The C series includes all the essential basic functions
and the devices have a power reserve of 20%. This
extra current may even be used continuously at
temperatures up to +45°C. The most important
features are the small size, the high efficiency and
the wide temperature range.

The Auto-select input makes worldwide installation
and usage very simple. Defects or system failures
caused by wrongly set switches can not occur.

C-Series

Related products

CS3.241

Less

power

CS5.241

Spring-clamp

terminals

Conformal

coated

only

100-120V

only

200-240V

CS5.241-S1

CS5.241-C1

CS4.243

CS5.244

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

POWER SUPPLY

■ AC 100-120 / 200-240V Auto Select Input

■ Efficiency up to 90.2%

■ Width only 32mm

■ 20% Output Power Reserves

■ Full Output Power Between -25°C and +60°C

■ Minimal Inrush Current Surge

■ 3 Year Warranty

2. SHORT-FORM DATA

Output voltage DC 24V
Adjustment range 24 - 28V
Output current 5 – 4.3A ambient <60°C
6 – 5,1A ambient <45°C
Output power 120W ambient <60°C
144W ambient <45°C
Output ripple < 50mVpp 20Hz to 20MHz
Input voltage AC 100-120 /

200-240V
Mains frequency 50-60Hz ±6%
AC Input current typ. 2.05 / 1.23A at 120 / 230Vac
Power factor typ. 0.56 / 0.47 at 120 / 230Vac
AC Inrush current typ. 3A peak
DC Input not allowed
Efficiency typ. 89.4 / 90.2% at 120 / 230Vac
Losses typ. 14.5 / 13.2W at 120 / 230Vac
Temperature range -25°C to +70°C operational
Derating 3W/°C +60 to +70°C
Hold-up time typ. 80 / 78ms at 120 / 230Vac
Dimensions 32x124x117mm WxHxD

Auto-select Input

3. ORDER NUMBERS

Power Supply

Accessory ZM1.WALL Wall mount bracket
ZM11.SIDE Side mount bracket
YRM2.DIODE Redundancy module

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CS5.241
CS5.241-C1

CS5.241-S1

Standard unit
Conformal coated PC­boards
Quick-connect spring­clamp terminals

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4. MARKINGS

LISTED

IND. CONT. EQ.

UL 508

EMC, LVD

18WM

UL 60950-1

GL

Marine, pending

1/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

INDEX PAGE INDEX PAGE

1.

General Description ............................................1

2. Short-form Data ..................................................1

3. Order Numbers....................................................1

4. Markings ..............................................................1

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

6. Input Inrush Current Surge .................................4

7. Hold-up Time.......................................................4

8. Output .................................................................5

9. Efficiency and Power Losses................................6

10. Functional Diagram.............................................7

11. Reliability .............................................................7

12. Front Side and User Elements.............................8

13. Terminals and Wiring..........................................8

14. EMC......................................................................9

15. Environment ......................................................11

16. Protection Features ...........................................11

17. Safety .................................................................12

18. Dielectric Strength ............................................12

19. Approvals...........................................................13

20. Fulfilled Standards............................................ 13

21. Used Substances ............................................... 13

22. Physical Dimensions and Weight ..................... 14

23. Installation and Operation Instructions .......... 14

24. Accessory........................................................... 15

25. Application Notes............................................. 16

25.1. Peak Current Capability......................... 16

25.2. Charging of Batteries............................. 16

25.3. Back-feeding Loads................................ 16

25.4. Output Circuit Breakers ......................... 17

25.5. Inductive and Capacitive Loads ............. 17

25.6. Series Operation..................................... 18

25.7. Parallel Use to Increase Output Power . 18

25.8. Parallel Use for 1+1 Redundancy........... 18

25.9. External Input Protection....................... 19

25.10. Operation on Two Phases...................... 19

25.11. Use in a Tightly Sealed Enclosure .......... 19

25.12. Mounting Orientations.......................... 20

INTENDED USE

The power supply shall only be installed and put into operation by qualified personnel.
This power supply is designed for installation in an enclosure and is intended for the general use, such as in industrial

control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear
equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life.

TERMINOLOGY AND ABREVIATIONS

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

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

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

AC 230V A figure displayed with the AC or DC before the value represents a nominal voltage with

standard tolerances (usually ±20%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)
As long as not otherwise stated, AC 100V and AC 230V parameters are valid at 50Hz and AC
120V parameters are valid at 60Hz mains frequency.

230Vac A figure with the unit (Vac) at the end is a momentary figure without any additional

tolerances included.

DISCLAIMER

The information presented in this document is believed to be accurate and reliable and may change without notice.

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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2/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

5. AC-INPUT

AC input

nom. AC 100-120V /

200-240V
AC input range 90-132Vac 100-120V range, continuous operation
180-264Vac 200-240V range, continuous operation

85-90Vac Short term or with output derating
264-300Vac < 0.5s

Input frequency nom. 50 – 60Hz ±6%

AC 100V AC 120V AC 230V

Input current typ. 2.34A 2.05A 1.23A at 24V, 5A see Fig. 5-3
Power factor *) typ. 0.58 0.56 0.47 at 24V, 5A see Fig. 5-1
Crest factor **) typ. 2,9 3,1 3,7 at 24V, 5A
Start-up delay

typ. 740ms 900ms 720ms see Fig. 5-2

Rise time typ. 8ms 8ms 8ms 0mF, 24V, 5A, see Fig. 5-2

Turn-on overshoot

typ. 25ms 25ms 25ms 5mF, 24V, 5A, see Fig. 5-2

max. 400mV 400mV 400mV see Fig. 5-2
Turn-on voltage typ. 75Vac 75Vac N / A steady-state value, see Fig. 5-1
Shut-down voltage typ. 55Vac 55Vac N / A steady-state value, see Fig. 5-1

*) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.
**) The crest factor is the mathematical ratio of the peak value to the RMS value of the input current waveform

Fig. 5-1 Input voltage range Fig. 5-2 Turn-on behavior, definitions

P

OUT

Rated input ranges

auto-select input, TN-, TT-, IT-Mains, see Fig. 5-1

Intput
Voltage

132V

3.5

no

harm

from

132 to

180V

Output Current

4

4.5

Range

200-

240V

264Vac180V

5

Output
Voltage

V

IN

- 5%

Start-up

delay

Rise

Time

Power Factor, typ.

c

a

V

0

0

1

c

a

V

0

2

1

c

a

V

0

3

2

5.5

6A

0.65

0.6

0.55

0.5

0.45

0.4

0.35
1

1.5 2 3

2.5

3.5

4

1

1

2

Output Current

5

4.5

Fig. 5-3 Input current vs. output load Fig. 5-4 Power Factor vs. output load

Input
Current, typ.

3A

2.5

2

1.5

1

0.5

0

1

1.5 2 3

Shut-down

Turn-on

90V

Range

100-

120V

2.5

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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0

2

3

0

0

0

5.5

V

V

V

Overshoot

c

a

c

a

c

a

6A

3/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

6. INPUT INRUSH CURRENT SURGE

An active inrush limitation circuitry limits the input inrush current after turn-on of the input voltage.
The charging current into EMI suppression capacitors is disregarded in the first milliseconds after switch-on.

Inrush current max. 10A
typ. 3A
Inrush energy

typ. 1A2s 1A2s 1A2s -25°C to +70°C

Fig. 6-1 Input inrush current, typical behavior

Input Current

Input Voltage

Output Voltage

A

AC 100V AC 120V AC 230V

10A

peak

3A

peak

10A

peak

3A

peak

-25°C to +70°C

peak

-25°C to +70°C

peak

A: Start-up delay = Inrush delay

Input: 230Vac
Output: 24V, 5A
Ambient: 25°C

Upper curve: Input current 10A / DIV
Medium curve: Input voltage 500V / DIV
Lower curve: Output voltage 20V / DIV
Time scale: 100ms / DIV

7. HOLD-UP TIME

AC 100V AC 120V AC 230V

Hold-up Time typ. 109ms 165ms 161ms 2,5A, 24V, see
typ. 50ms 80ms 78ms 5A, 24V, see Fig. 7-1
typ. 37ms 62ms 63ms 6A, 24V, see

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

Hold-up Time

150ms

125

100

75

50

25

0

85 120100 180 230Vac

a) 24V 2,5A typ.
b) 24V 2,5A min.

a a

c) 24V 5A typ.

b

d) 24V 5A min.
e) 24V 6A min.

c

d
e

Input Voltage

b

c
d

e

Intput
Voltage

Output
Voltage

Hold-up Time

Note: At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is on during this time.

Fig. 7-1

Fig. 7-1

Zero Transition

- 5%

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

8. OUTPUT

Output voltage
Adjustment range
max. 30V at clockwise end position of potentiometer
Factory setting
Line regulation
Load regulation max. 100mV static value, 0A Æ 5A Æ 0A
Ripple and noise voltage
Output capacitance typ. 1 800µF
Output current nom.
nom. 5A
nom.

Output power
nom. 120W
Short-circuit current min. 10A load impedance 200mOhm, see Fig. 8-1
max. 14A load impedance 200mOhm, see Fig. 8-1

U) The unit may respond with a thermal shut-down when continuously loaded with more than 120W and operated with a mains

voltage of 100V or below.

Fig. 8-1 Output voltage vs. output current, typ.

nom. 24V
min. 24-28V guaranteed

24.1V

±0.2%, at full load, cold unit

max. 70mV 90 to 132Vac or 180 to 264Vac

max. 50mVpp 20Hz to 20MHz, 50Ohm

6A U)

5.1A U)
nom. 4.3A
nom.

144W U)

at 24V, ambient < 45°C, see
at 24V, ambient < 60°C, see
at 28V, ambient < 45°C, see
at 28V, ambient < 60°C, see
ambient < 45°C

Fig. 8-1
Fig. 8-1
Fig. 8-1
Fig. 8-1

ambient < 60°C

Output Voltage

28V

24

20

16

12

8

4
0

Output Current

048

Adjustment

Range

12A1062

Peak current capability (up to several ms)

The power supply can deliver a peak current which is higher than the specified short term current. This helps to start
current demanding loads or to safely operate subsequent circuit breakers.

The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will
be discharged and causes a voltage dip on the output. Detailed curves can be found in chapter 25.1.

Peak current voltage dips typ. from 24V to 18.5V at 10A for 50ms, resistive load
typ. from 24V to 22V

typ. from 24V to 20V

at 25A for 2ms, resistive load
at 25A for 5ms, resistive load

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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5/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

9. EFFICIENCY AND POWER LOSSES

AC 100V AC 120V AC 230V

Efficiency typ. 88.8% 89.4% 90.2% 5A, 24V
Power losses typ. 1.9W 2.0W 1.7W 0A
typ. 9.1W 8.8W 8.2W 2.5A, 24V
typ. 15.3W 14.5W 13.2W 5A, 24V
typ. 19.4W 18.2W 16.1W 6A, 24V

Fig. 9-1 Efficiency vs. output current at 24V Fig. 9-2 Losses vs. output current at 24V

91%

Efficiency

90

89

88

87

86

85

1

2

3

0

V

a

c

1

2

0

V

a

c

1

0

0

V

a

c

Output Current

3

6A245

Power Losses

18W

15

12

9

6

3

0

012 456A

Fig. 9-3 Efficiency vs. input voltage, 24V, 5A Fig. 9-4 Losses vs. input voltage, 24V, 5A

Efficiency

91%

90.5

90.0

89.5

89.0

88.5

88.0
85 120 155 190 225 260

Input Voltage

Vac

Power Losses

18W

15

12

9

6

3

0

85 120 155 190 225 260

100Vac
120Vac

230Vac

Output Current

3

Input Voltage

Vac

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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6/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

10. FUNCTIONAL DIAGRAM

Fig. 10-1 Functional diagram

115/230V

Input
Rectifier
&
Inrush
Limiter

Output

Over-

Voltage

Protection

Power

Converter

L

N

Input Fuse
&
Input Filter

Auto Select

24V, 5A, SINGLE PHASE INPUT

Output

Voltage

Regulator

Output

Filter

V

OUT

+
+

-

-

DC
ok

11. RELIABILITY

AC 100V AC 120V AC 230V

Lifetime expectancy min. 52 000h 58 000h 72 000h 40°C, 24V, 5A
min. 27 000h 34 000h 42 000h 40°C, 24V, 6A
min. 135 000h 128 000h 144 000h 40°C, 24V, 2,5A
min. 142 000h 15 years 15 years 25°C, 24V, 5A
MTBF SN 29500, IEC 61709 638 000h 661 000h 869 000h 40°C, 24V, 5A
542 000h 562 000h 739 000h 40°C, 24V, 6A
1 077 000h 1 111 000h 1 495 000h 25°C, 24V, 5A
MTBF MIL HDBK 217F 552 000h 546 000h 574 000h 40°C, 24V, 5A, Ground Benign GB40
497 000h 491 000h 517 000h 40°C, 24V, 6A, Ground Benign GB40

788 000h 775 000h 800 000h 25°C, 24V, 5A, Ground Benign GB25

The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors.

Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to the capacitor’s
manufacturer specification. The prediction model allows a calculation of up to 15 years from date of shipment.

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.

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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7/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

12. FRONT SIDE AND USER ELEMENTS

Fig. 12-1 Front side

Output Terminals

Screw terminals
(Spring-clamp terminals on the
CS5.241-S1)

+ Positive output

- Negative (return) output

Dual pins per pole

Input Terminals

Screw terminals
(Spring-clamp terminals
on the CS5.241-S1)

N … Neutral input
L … Line (hot) input

... PE (Protective Earth) input

Output voltage potentiometer
Open the flap to tune the output voltage.
Factory set: 24.1V

DC-on lamp (green)
On when the voltage on the output

terminals is > 21 V

13. TERMINALS AND WIRING

Type Screw terminals (CS5.241, CS5.241-C1), ); Spring-clamp terminals (CS5.241-S1)
Solid wire 0.5-6mm
Stranded wire 0.5-4mm2
American wire gauge 20-10 AWG
Ferrules allowed, but not required
Wire stripping length 7mm / 0.275inch
Screwdriver 3.5mm slotted or Pozidrive No 2 (only for screw terminals)
Recommended tightening torque 0.8Nm, 7lb.in (only for screw terminals)

Instructions:

a) Use appropriate copper cables that are designed for an operating temperature of:

60°C for ambient up to 45°C and

75°C for ambient up to 60°C minimum.
b) Follow national installation codes and installation regulations!
c) Ensure that all strands of a stranded wire enter the terminal connection!
d) Up to two stranded wires with the same cross section are permitted in one connection point (except PE wire).
e) Do not use the unit without PE connection.

2

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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8/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

14. EMC

The CE mark is in conformance with EMC guideline 89/336/EEC and 93/68/EEC and the low-voltage directive (LVD)
73/23/EWG. A detailed EMC Report is available on request.

EMC Immunity

Electrostatic discharge EN 61000-4-2 Contact discharge

Electromagnetic RF field EN 61000-4-3 80MHz-1GHz 10V/m Criterion A

Fast transients (Burst) EN 61000-4-4 Input lines

Surge voltage on input EN 61000-4-5 L Æ N

Surge voltage on output EN 61000-4-5 + Æ -

Conducted disturbance EN 61000-4-6 0,15-80MHz 10V Criterion A

Mains voltage dips EN 61000-4-11 0% of 100Vac

Voltage interruptions EN 61000-4-11 0Vac, 5000ms Criterion C
Input voltage swells PULS internal standard 300Vac, 500ms Criterion A

Powerful transients VDE 0160 over entire load

Criterions:

A: Power supply shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible. Power supply might shut-down and restarts by itself. No damages or hazards for the

power supply occur.

Switching frequency

EN 61000-6-2 EN 61000-6-1

Air discharge

Output lines

N / L Æ PE

+ / - Æ PE

40% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac

range

175kHz to 225kHz input voltage dependent 24V, 2.5A
100kHz to 130kHz input voltage dependent 24V, 5A

Generic standards
8kV

15kV

4kV
2kV

2kV
4kV

500V
500V

0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms

750V, 1.3ms Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion C
Criterion A
Criterion A
Criterion C
Criterion A

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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9/20

EMC Emission

Conducted emission EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B, input lines
EN 55022 Class A, output lines
Radiated emission EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 >2.7A output current not fulfilled
Voltage fluctuations, flicker EN 61000-3-3 fulfilled

This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.

Above an average output current of 2.7A, the harmonic current standard EN61000-3-2 is not fulfilled.

Please note:

A power supply has to comply with EN 61000-3-2 (Standard for harmonic input current) when:

1) the end-device is used within the European Union and

2) the end-device is connected to a public mains supply with a nominal voltage ≥ 220Vac and

3) the power supply is:

- fitted in an end-device with an average input power in excess of 75W or

- fitted in an end-device with a continuous input power in excess of 75W or

- part of a lighting system.

Exceptions:
End-devices for professional applications with an input power > 1000W do not need to fulfill EN 61000-3-2.

Comments:

- The average input power must be determined in accordance with EN 61000-3-2.

- Industrial mains supplies with their own transformer are considered to be “non-public”.

- Where individual self-contained items of equipment are installed in a rack or case
(e.g. devices connected in parallel), they are regarded as being individually connected to the
mains supply. The rack or case need not be tested as a whole. Alternatively it is also permitted
to assess the whole rack or case. This is recommended for devices used in professional
applications with an input power greater than 1000W.

C–Series

EN 61000-6-4 Generic standards

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

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10/20

C

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

15. ENVIRONMENT

Operational temperature -25°C to +70°C (-13°F to 158°F) reduce output power according
Output de-rating 1.6W/°C 45-60°C (113°F to 140°F),
3W/°C 60-70°C (140°F to 158°F),
Storage temperature -40 to +85°C (-40°F to 185°F) storage and transportation

Humidity 5 to 95% r.H. IEC 60068-2-30

Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g

Shock 30g 6ms, 20g 11ms

2 hours / axis

3 bumps / direction, 18 bumps in total

Do not energize while condensation is present

IEC 60068-2-6

IEC 60068-2-27

Altitude 0 to 6000m (0 to 20 000ft) Reduce output power or ambient

temperature above 2000m sea level.
Output de-rating (for altitude) 7.5W/1000m or 5°C/1000m above 2000m (6500ft), see Fig. 15-2
Over-voltage category III EN 50178, altitudes up to 2000m
II Altitudes from 2000m to 6000m
Degree of pollution 2 EN 50178, not conductive

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

Allowable Output
Current at 24V

6A

5

4

3

2

1

0

-25 0 20 40

c

n

o

n

i

t

u

o

u

s

Ambient Temperature

60

s

h

r

o

t

t

e

r

m

70°

Allowable Output
Current at 24V

6A

5

4

3

2

.

A

.

a

.

T

b

m

<

B

.

.

1

.

C

.

.

.

0

0 2000 4000

6

a

T

b

m

5

<

a

T

b

m

4

<

h

s

r

o

t

t

e

m

r

C

B

A

C

°

0

C

°

0

C

°

0

Altitude

6000m

The ambient temperature is defined 2cm below the unit.

Fig. 15-1

16. PROTECTION FEATURES

Output protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection typ. 35Vdc

max. 39Vdc

Output over-current protection electronically limited see Fig. 8-1
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 3.5mm e.g. screws, small parts
Over-temperature protection yes output shut-down with automatic restart
Input transient protection MOV Metal Oxide Varistor
Internal input fuse T4A H.B.C. not user replaceable

Note: In case of a protection event, audible noise may occur.

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

In case of an internal power supply defect, a redundant
circuitry limits the maximum output voltage. The output
shuts down and automatically attempts to restart.

11/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

17. SAFETY

Input / output separation SELV IEC/EN 60950-1
PELV EN 60204-1, EN 50178, IEC 60364-4-41
double or reinforced insulation
Class of protection I PE (Protective Earth) connection required
Isolation resistance > 5MOhm input to output, 500Vdc
PE resistance < 0.1Ohm between housing and PE terminal
Touch current (leakage current) typ. 0.24mA 100Vac, 50Hz, TN mains
typ. 0.35mA 120Vac, 60Hz, TN mains
typ. 0.40mA 230Vac, 50Hz, TN mains
< 0.36mA 110Vac, 50Hz, TN mains
< 0.53mA 132Vac, 60Hz, TN mains
< 0.60mA 264Vac, 50Hz, TN mains

18. DIELECTRIC STRENGTH

The output voltage is floating and has no ohmic connection to ground.
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, we recommend that either the + pole, the – pole or

any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in
which a load starts unexpectedly or can not be switched off any more when unnoticed earth faults occur.

Fig. 18-1 Dielectric strength

Input

L

N

A

Earth, PE

B

C

Output

+

-

Type test 60s 2500Vac 3000Vac 500Vac

Factory test 5s 2500Vac 2500Vac 500Vac

Field test 5s 2000Vac 2000Vac 500Vac
Type tests and factory tests:

Conducted by the manufacturer. Do not repeat test in field!
Rules for field test:
Use appropriate test equipment which applies the voltage
with a slow ramp! Connect L and N together as well as all
output poles.

A B C

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

12/20

19. APPROVALS

IEC 60950-1

UL 508

UL 60950-1

Marine

pending

C–Series

IECEE

CB SCHEME

18WM

LISTED

IND. CONT. EQ.

GL

ABS

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

CB Scheme,
Information Technology Equipment

LISTED as Industrial Control Equipment
E198865

RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-1)
and Canada (C22.2 No. 60950)
Information Technology Equipment, Level 3

GL (Germanischer Lloyd) classified and ABS (American Bureau for
Shipping) PDA for marine and offshore applications.

Environmental category: C, EMC2

20. FULFILLED STANDARDS

EN 61558-2-17 Safety of Power Transformers

EN/IEC 60204-1 Safety of Electrical Equipment of Machines

EN/IEC 61131-2 Programmable Controllers

EN 50178 Electronic Equipment in Power Installations

21. USED SUBSTANCES

The unit does not release any silicone and is suitable for the use in paint shops.

Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.

Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.

The production material within our production does not include following toxic chemicals:
Polychlorized Biphenyl (PCB), Polychlorized Terphenyl (PCB), Pentachlorophenol (PCP), Polychlorinated naphthalene
(PCN), Polybrom Biphenyl (PBB), Polybrom Bipheny-oxyd (PBO), Polybrominated Diphenylether (PBDE), Polychlorinated
Diphenylether (PCDE), Polydibromphenyl Oxyd (PBDO), Cadmium, Asbest, Mercury, Silicia

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

13/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

22. PHYSICAL DIMENSIONS AND WEIGHT

Weight 500g / 1.1lb
DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.

The DIN-rail height must be added to the depth (117mm) to calculate the total required
installation depth.

Electronic files with mechanical data can be downloaded at www.pulspower.com

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

23. INSTALLATION AND OPERATION INSTRUCTIONS

Mounting Orientation:

Output terminal must be located on top and input terminal on the bottom. For other orientations see chapter 25.12.

Cooling:

Convection cooled, no forced cooling required. Do not cover ventilation grid (e.g. cable conduits) by more than 30%!

Installation clearances:

40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently
with full power. In case the adjacent device is a heat source, 15mm clearance are recommended.

Risk of electrical shock, fire, personal injury or death!

Do not use the unit without proper earth connection (Protective Earth). Use the pin on the terminal block for earth
connection and not one of the screws on the housing.
Turn power off before working on the power supply. Protect against inadvertent re-powering.
Make sure the wiring is correct by following all local and national codes.
Do not open, modify or repair the unit.
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.

Service parts:
The unit does not contain any service parts. The tripping of an internal fuse is caused by an internal defect. If damage
or malfunctioning should occur during operation, immediately turn power off and send unit to factory for
inspection!

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

14/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

24. ACCESSORY

ZM1.WALL Wall mounting bracket
This bracket is used to mount Dimension units onto a flat surface without utilizing a DIN-Rail. The two aluminum

brackets and the black plastic slider of the unit have to be detached, so that the two steel brackets can be mounted.

Fig. 24-1 ZM1.WALL Wall Mounting Bracket Fig. 24-2 Assembled Wall Mounting Bracket

ZM11.SIDE Side mounting bracket
This bracket is used to mount Dimension units sideways with or without utilizing a DIN-Rail. The two aluminum

brackets and the black plastic slider of the unit have to be detached, so that the steel brackets can be mounted.
For sideway DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on

the steel bracket.

Fig. 24-3 ZM13.SIDE Side Mounting Bracket Fig. 24-4 Side Mounting with DIN-rail brackets

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

15/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

25. APPLICATION NOTES

25.1. PEAK CURRENT CAPABILITY

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.

Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch
circuit, the fuse needs a certain amount of over-current to trip or to blow. The peak current capability ensures the
safe operation of subsequent circuit breakers.

Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the
power supply can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The following
two examples show typical voltage dips:

Fig. 25-1 Peak load 10A for 50ms, typ. Fig. 25-2 Peak load 25A for 5ms, typ.

24V

Output
Voltage

24V

Output
Voltage

10A

0A

10ms/DIV

Peak load 10A (resistive) for 50ms

Output voltage dips from 24V to 18.5V.

18.5V

Output
Current

25A

0A

1ms/DIV

Peak load 25A (resistive) for 5ms

Output voltage dips from 24V to 20V.

20V

Output
Current

25.2. CHARGING OF BATTERIES

The power supply shall not be used to charge batteries. Choose Q-Series for charging batteries.

25.3. BACK-FEEDING LOADS

Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called
return voltage immunity or resistance against Back- E.M.F. (E

This power supply 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 maximum allowed feed back voltage is 35Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 8.

lectro Magnetic Force).

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

16/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

25.4. OUTPUT CIRCUIT BREAKERS

Standard miniature circuit breakers (MCBs) can be used for branch protection. Ensure that the MCB is rated for DC
voltage, too. The following tests show which circuit breakers the power supply typically trips.

Circuit breakers have huge tolerances in their tripping behavior. Therefore, these typical tests can only be used as a
recommendation or for comparing two different power supplies. Furthermore, the loop impedance has a major
influence on whether a breaker trips or not. Two tests were performed, representing typical situations:

Test 1: Short circuit with S1 on the power supply end of the cable (loop impedance approx. 20mOhm)

Fig. 25-3 Branch protectors, test circuit 1

Circuit

Power

Supply

AC

DC

Breaker

I

+

S1

-

+

Load

-

Test 2: Short circuit with S1 on the load end (additional impedance included; represents longer load wire length).

Fig. 25-4 Branch protectors, test circuit 2

Circuit

Power

Supply

AC

DC

Breaker

I

+

-

R

+

S1 Load

-

Example:
Which wire gauge must be used to trip a C-Characteristic circuit breaker with a rating of 3A? The load wire length is
21m.

Answer: A 3A C-Characteristic circuit breaker requires a loop impedance of less than 270mOhm (test results). The wire
length table shows that up to 23m wire with a cross section of 1.5mm

2

1.5mm

shall be used.

180mOhm
270mOhm

Parameters:
Input voltage: 230Vac, load current: 0A

The following circuit breaker tripped during the test:

A- or Z- Characteristic:: equal or smaller 8A
B- Characteristic: no tripping ≥ 6A

no breaker available < 6A
C- Characteristic: equal or smaller 4A

Parameters:
Input voltage: 230Vac, load current: 0A

The following circuit breaker tripped during the test:

A- or Z- Characteristic:: ≤ 6A and R= 180mOhm
B- Characteristic: no tripping ≥ 6A

no breaker available < 6A
C- Characteristic: ≤ 3A and R= 270mOhm

What does this resistance mean in wire length?

2

0.5mm

0.7mm2 1.0mm2 1.5mm2 2.5mm2 4.0mm2

5.0m 7.0m 10m 15m 25m 40m

7.5m 10.5m 15m 23m 38m 60m

2

are below 270mOhm. A wire not smaller than

25.5. INDUCTIVE AND CAPACITIVE LOADS

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

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

17/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

25.6. SERIES OPERATION

The power supply can be put in series to increase the output voltage.

Fig. 25-5 Schematic for series operation

Unit A

AC

Unit B

AC

DC

DC

+

-

+

-

+

Load

-

Earth

Instructions for use in series:

a) It is possible to connect as many units in series as needed,

providing the sum of the output voltage does not exceed
150Vdc.

b) Voltages with a potential above 60Vdc are not SELV any

more and can be dangerous. Such voltages must be installed

with a protection against touching.
c) For serial operation use power supplies of the same type.
d) Earthing of the output is required when the sum of the

output voltage is above 60Vdc.
e) Keep an installation clearance of 15mm (left/right) between

two power supplies and avoid installing the power supplies

on top of each other.

Avoid return voltage (e.g. from a decelerating motor or

Note:
battery) which is applied to the output terminals.

24V, 5A, SINGLE PHASE INPUT

25.7. PARALLEL USE TO INCREASE OUTPUT POWER

The power supply shall not be used in parallel to increase the output power.

25.8. PARALLEL USE FOR 1+1 REDUNDANCY

Power supplies can be paralleled for 1+1 redundancy to gain a higher system availability. Redundant systems require
a certain amount of extra power to support the load in case one power supply unit fails. The simplest way is to put
two C-Series power supplies in parallel. In case one power supply unit fails, the other one is automatically able to
support the load current without any interruption. This simple way to build a redundant system has two major
disadvantages:

- The faulty power supply can not be recognized. The green LED will still be on since it is reverse-powered from
the other power supply.

- It does not cover failures such as an internal short circuit in the secondary side of the power supply. In such a ­virtually nearly impossible - case, the defective unit becomes a load for the other power supplies and the output
voltage can not be maintained any more.

This can only be avoided by utilizing decoupling diodes which are included in the decoupling module YR2.DIODE or
redundancy module YRM2.DIODE.

Recommendations for building redundant power systems:
a) Use separate input fuses for each power supply.
b) Monitor the individual power supply units. A DC-ok lamp and a DC-ok contact is included in the redundancy

module YRM2.DIODE. This feature reports a faulty unit.

c) When possible, connect each power supply to different phases or circuits.

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

18/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

25.9. EXTERNAL INPUT PROTECTION

The unit is tested and approved for branch circuits up to 20A. External protection is only required if the supplying
branch has an ampacity greater than this. In some countries local regulations might apply. Check also local codes and
local requirements.

If an external fuse is necessary or utilized, a minimum value is required to avoid undesired tripping of the fuse.

B-Characteristic C-Characteristic

Ampacity max.

min.

20A 20A
10A 6A

25.10. OPERATION ON TWO PHASES

Fig. 25-6 Schematic for two phase operation

L1

L3

L2

max.

+10%

240V

Power Supply

Fuse

N

PE

L

AC

internal

fused

DC

Instructions for two phase operation:
a) A phase to phase connection is allowed as long as the

supplying voltage is below 240V

+10%

.

b) Use a fuse or a circuit breaker to protect the N input. The

N input is internally not protected and is in this case
connected to a hot wire.

Appropriate fuses or circuit breakers are specified in section 25.9
“External Input Protection”.

25.11. USE IN A TIGHTLY SEALED ENCLOSURE

When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher
than outside. The inside temperature defines the ambient temperature for the power supply.

Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure: Rittal Type IP66 Box PK 9516 100, plastic, 110x180x165mm

Load: 24V, 4A; (=80%) load is placed outside the box
Input: 230Vac
Temperature inside the box: 44.3°C (in the middle of the right side of the power supply with a distance of 2cm)
Temperature outside the box: 23.3°C
Temperature rise: 21K

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

19/20

C–Series

CS5.241, CS5.241-C1, CS5.241-S1

24V, 5A, SINGLE PHASE INPUT

25.12. 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 max. allowed ambient temperature. The amount of reduction
influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous
operation can be found below:

Curve A1 Recommended output current.
Curve A2 Max allowed output current (results approx. in half the lifetime expectancy of A1).

Fig. 25-7

Mounting
Orientation A

Standard
Orientation

Fig. 25-8

Mounting
Orientation B
(Upside down)

OUTPUT

Power

Supply

INPUT

INPUT

Supply

Power

OUTPUT

Fig. 25-9

Mounting
Orientation C

(Table-top
mounting)

Fig. 25-10

Mounting
Orientation D

(Horizontal cw)

Supply

INPUT

OUTPUT

Power

Fig. 25-11

Mounting
Orientation E

(Horizontal ccw)

OUTPUT

Power

INPUT

Supply

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Ambient Temperature

40

50

Ambient Temperature

40

A

2

A

1

Ambient Temperature

40

A

2

A

1

Ambient Temperature

40

Ambient Temperature

40

50

50

50

50

A

1

60°C

A

2

A

1

60°C

60°C

60°C

A

2

A

1

60°C

Dec. 2006 / Rev. 1.3 DS-CS5.241-EN
All parameters are specified at 24V, 5A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone [phone] Germany

20/20