PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

POWER SUPPLY
▪
▪
▪
▪
▪
▪

AC 100-120V / 200-240V Auto-select Input
Width only 39mm
Efficiency up to 92.3%
Full Power Between -10°C and +55°C
DC-OK Relay Contact
3 Year Warranty

PRODUCT DESCRIPTIONSHORT-FORM DATA

These PIANO series units are extraordinarily compact, industrial
grade power supplies that focus on the essential featuresneeded in today’s industrial applications. The excellent
cost/performance ratio presents many new and exciting
opportunities without compromising quality or reliability.

Output voltage
Adjustment range
Output current

The mechanically robust housing is made of a high-grade,
reinforced molded material, which permits the units to be usedin surrounding temperatures up to 70°C.
The unit is equipped with an auto-select input voltage stage for100-120V and 200-240V mains systems, many safety approvals
and a wide operational temperature range, which makes theunit applicable for global use.
The addition of a DC-OK signal makes the unit suitable for manyindustry applications such as process control, factory
automation or many other critical applications, where
preventive function monitoring can help to avoid long
downtimes.

Input voltage AC
Mains frequency
AC Input current
Power factor
AC Inrush current
Efficiency
LossesHold-up time
Temperature range
Size (WxHxD)
WeightDC 24V
Nominal24 – 28V
Factory setting 24.1V
For AC 110-120V,AC 208-240V mains:
5.0 – 4.3A
Below +55°C amb.
3.1 – 2.7A
At +70°C amb.
For AC 100, 120V mains:
5.0 – 4.3A
Below +50°C amb.
2.5 – 2.1A
At +70°C amb.
Derate linearly between +50°C and +70°C
AC 100-120V /±10%, Auto-select200-240V
50-60Hz±6%
1.72 / 1.05A
At 120 / 230Vac
0.64 / 0.54
At 120 / 230Vac
22 / 33A pk
At 120 / 230Vac,
40°C, cold start
91.2 / 92.3%
At 120 / 230Vac
11.6 / 10.0W
At 120 / 230Vac
51 / 50ms
At 120 / 230Vac-10 to +70°C
39x124x124mm
370g

ORDER NUMBERS

MAIN APPROVALSPower Supply

PIC120.241D

For details and the complete approval list, see chapter 19.

Accessory

PIRD20.241
UF20.241

Redundancy Module
Buffer Module
UL 61010-2-201

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

1/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

INDEX
Page
1. Intended Use ................................................................ 3
2. Installation Instructions ................................................ 3
3. AC-Input ....................................................................... 4
4. DC-Input ....................................................................... 5
5. Input Inrush Current ..................................................... 5
6. Output .......................................................................... 6
7. Hold-up Time ................................................................ 7
8. DC OK Relay Contact .................................................... 8
9. Efficiency and Power Losses ......................................... 9
10. Functional Diagram .................................................... 10
11. Front Side and User Elements .................................... 10
12. Connection Terminals ................................................ 11
13. Lifetime Expectancy ................................................... 11
14. MTBF .......................................................................... 11
15. EMC ............................................................................ 12
16. Environment ............................................................... 13

Page
17. Safety and Protection Features.................................. 14
18. Dielectric Strength ..................................................... 15
19. Approved, Fulfilled or Tested Standards .................... 16
20. Regulatory Product Compliance ................................ 17
21. Physical Dimensions and Weight ............................... 18
22. Accessory ................................................................... 19
22.1. PIRD20.241 Redundancy Module ..................... 19
22.2. UF20.241 Buffer module .................................. 19
23. Application Notes....................................................... 20
23.1. Charging of Batteries ........................................ 20
23.2. Series Operation............................................... 20
23.3. Parallel Use to Increase Output Power ............ 20
23.4. Parallel Use for 1+1 Redundancy ..................... 20
23.5. Operation on Two Phases ................................ 21
23.6. Use in a Tightly Sealed Enclosure ..................... 21

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 ourknowledge and experience is constantly changing, the information in this data sheet is subject to revision. We therefore kindly ask you
to always use the latest issue of this document (available under www.pulspower.com).
No part of this document may be reproduced or utilized in any form without our prior permission in writing.
Packaging and packaging aids can and should always be recycled. The product itself may not be disposed of as domestic refuse.

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

230VacA 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 100V and AC 230V parameters are valid at 50Hz mains frequency. AC
120V parameters are valid for 60Hz mains frequency.

may

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

shall

A key word indicate a mandatory requirement.

shouldA key word indicate flexibility of choice with a strongly preferred implementation.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

2/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

1. INTENDED USEThis device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control, process control,
monitoring, measurement, Audio/Video, information or communication equipment or the like. Do not use this device in equipment
where malfunction may cause severe personal injury or threaten human life.
If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.
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 industrial, residential, commercial and light-industrial environments.

2. INSTALLATION INSTRUCTIONSWARNING Risk of electrical shock, fire, personal injury or death.
- 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 the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected.
- Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.
Obey the following installation instructions:This device may only be installed and put into operation by qualified personnel.
This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to the factory for
inspection.
Install 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.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that are designed for aminimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient temperatures up to +55°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 is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against spilled liquids.
The isolation of the device is designed to withstand impulse voltages of overvoltage category III according to IEC 60664-1.
The device is designed as “Class of Protection” I equipment according to IEC 61140. Do not use without a proper PE (Protective Earth)connection.
The device is suitable to be supplied from TN, TT or IT mains networks. The continuous voltage between the input terminal and the PE
potential must not exceed 300Vac.
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 5000m. Above 2000m the overvoltage category is reduced to level II and a reduction in output
current is required.
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side. Increase the 5mm to15mm 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 20A without additional protection device. For higher branch
circuits use an additional protection device. If an external input protection device is utilized, do not use one smaller than a 10A B- or Ccharacteristic to avoid a nuisance tripping of the circuit breaker.
The maximum surrounding air temperature is +70°C. The operational temperature is the same as the ambient or surrounding air
temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

3/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

3. AC-INPUT
The device is suitable to be supplied from TN, TT or IT mains networks with AC voltage.
AC input
AC input range

Nom.

AC 100-120V / 200-240V
90-132Vac / 180- 264Vac
264-300Vac
300VacAuto-selectAllowed voltage L or N to earth

Max.

Input frequency
External input protectionNom.
50–60HzSee recommendations in chapter 2.

Occasionally for maximal 500ms
Continuous, according to IEC 60664-1±6%

Input current
Power factor
Crest factor

Typ.
Typ.
Typ.

AC 100V
2.0A
0.66
2.7

Turn-on voltage
Shut-down voltage

Typ.
Typ.

78Vac
68Vac

78Vac
68Vac

157Vac
68Vac

Start-up delay
Rise time

Typ.
Typ.

400ms
30ms

400ms
30ms

100ms
30ms

Typ.

90ms

90ms

90ms

Max.

200mV

200mV

200mV

AC 230V
1.05A
0.54
3.4

Fig. 3-1 Input voltage range, typ.

Rated input ranges

Turn-onShut -dow n

POUT

Lower
range

Fig. 3-2 Turn-on behaviour, definitions

Input
Voltage

max.
500ms

Upper
range

OutputVoltage

VIN
90

132

180

Start-up
delay

Fig. 3-3 Input current vs. output load at 24V

1.5
1.2

Fig. 3-4 Power factor vs. output loadaba) 100Vacb) 120Vacc) 230Vac

0.70
0.65

a) 100Vacb) 120Vacc) 230Vac

a
b

0.60
c

0.55

0.6
0

Rise
Time

Power Factor, typ.

0.9
0.3

- 5%

264 300Vac

Input Current, typ.

2.2A
1.8

At 24V, 5A, see Fig. 3-3
At 24V, 5A, see Fig. 3-4
At 24V, 5A, The crest factor is themathematical ratio of the peak value to
RMS value of the input current
waveform.
Steady-state value, see Fig. 3-1
At 24V, 5A, steady-state value, see Fig.
3-1
See Fig. 3-2
At 24V, 5A const. current load, 0mF load
capacitance, see Fig. 3-2
At 24V, 5A const. current load, 5mF load
capacitance, see Fig. 3-2
See Fig. 3-2

OvershootTurn-on overshootAC 120V
1.72A
0.64
2.8

c

0.50
Output Current

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5A

Output Current

0.45
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5A

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

4/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

4. DC-INPUT
Do not operate this power supply with DC-input voltage.

5. INPUT INRUSH CURRENTAn NTC inrush limiter limits the input inrush current after turn-on of the input voltage.
The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.

Inrush current

AC 100V
23Apeak
13Apeak
18Apeak
0.4A2s

Max.
Typ.
Typ.
Max.

Inrush energy

Fig. 5-1 Input inrush current, typical behavior
230Vac input, 24V 5A output, 40°C ambient

AC 120V
27Apeak
16Apeak
22Apeak
0.5A2s

AC 230V
40Apeak
30Apeak
33Apeak
1.5A2sAt 40°C, cold start
At 25°C, cold start
At 40°C, cold start
At 40°C, cold startFig. 5-2 Input inrush current, zoom into first peak
230Vac input, 24V 5A output, 40°C ambient

1ms/DIV

20ms/DIV

Ipeak = 33A
Input current 20A/DIV

Input voltage 500V/DIV

Input current 10A/DIV

Output voltage 20V/DIV

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

5/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

6. OUTPUT
The output provides a SELV/PELV/ES1 rated voltage, which is galvanically isolated from the input voltage.
The output is designed to supply any kind of loads, including capacitive and inductive loads. The output can supply any kind of loads,
including unlimited inductive and capacitive loads. If capacitors with a capacitance >10mF and 2.5A or >5mF with 5A additional current
load are connected, the unit might charge the capacitor in an intermittent mode. No limitation for capacitive loads in combination withan additional resistive type of load.
The output is electronically protected against overload, no-load and short-circuits. In case of a protection event, audible noise may
occur.
Output voltage
Adjustment range

Nom.

DC 24V
24-28V
30V

Output capacitance

Typ.

Guaranteed value
This is the maximum output voltage which can occur at theclockwise end position of the potentiometer due to tolerances.
It is not a guaranteed value which can be achieved.
24.1V±0.2%, at full load and cold unit
10mV
Between 85 and 300Vac
150mV
Between 0A and 5A, static value, see Fig. 6-1
100mVpp
Bandwidth 20Hz to 20MHz, 50Ohm
5.0A
At 24V and an ambient temperature below 55°C
3.1A
At 24V and 70°C ambient temperature
4.3A
At 28V and an ambient temperature below 55°C
At 28V and 70°C ambient temperature
2.7A
Derate linearly between +55°C and +70°
Continuous current
For output voltage above 2…10Vdc (depending on the input
voltage), see Fig. 6-1
Intermittent current1)
For output voltage below 2…10Vdc (depending on the input
voltage), see Fig. 6-1
9.8A
Continuous current, see Fig. 6-1
9.2AIntermittent current peak value for typ. 60ms
Load impedance 50mOhm, see Fig. 6-2
Discharge current of output capacitors is not included.
3.5A
Intermittent current average value (R.M.S.)
Load impedance 50mOhm, see Fig. 6-2
2 050µF
Included inside the power supply

Back-feeding loads

Max.

35V

Max.

Factory settings
Line regulation
Load regulation
Ripple and noise voltage
Output current

Typ.
Max.
Max.
Max.
Nom.
Nom.
Nom.
Nom.

Overload behaviour

Overload/ short-circuit current

Max.
Typ.

Max.

The unit is resistant and does not show malfunctioning when aload feeds back voltage to the power supply. It does not matter
whether the power supply is on or off. The absorbing energy
can be calculated according to the built-in large sized output
capacitor.

1) At heavy overloads (when output voltage falls below 2…10V, depending on the input voltage), the power supply delivers output current for 60ms. After this, theoutput is switched off for 360ms before a new start attempt is automatically performed. This cycle is repeated as long as the overload exists. If the overload has
been cleared, the device will operate normally.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

6/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

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

Output Voltage

Fig. 6-2 Intermittent operation at shorted output, typ.

Adjustment
Range

28V

60ms

A... 132 / 264Vac
B ... 85 / 187Vac

24
20

9.2A

continuous
current

16
12

intermittent
operation

8

A

4
0

360ms

B

0

1

2

3

4

5

6

7

8

9 10A

Output Current

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

Hold-up TimeAC 100V
64ms
54ms
26ms
22ms

Typ.
Min.
Typ.
Min.

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

AC 230V
105ms
88ms
50ms
42ms

At 24V, 2.5A, see Fig. 7-1
At 24V, 2.5A, see Fig. 7-1
At 24V, 5A, see Fig. 7-1
At 24V, 5A, see Fig. 7-1

Fig. 7-2 Shut-down behaviour, definitionsa) 24V 2.5A typ.

Hold-up Time

125ms

AC 120V
108ms
91ms
51ms
43ms

ab

24V 2.5A min.
c d b)c) 24V 5A typ.

aZero Transitionbd) 24V 5A min.

100

Input
Voltage

c
d

75
50

- 5%

OutputVoltage

25
0
85

120

155

190

230Vac

Hold-up Time

Input Voltage

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

7/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

8. DC-OK RELAY CONTACT
This feature monitors the output voltage on the output terminals of a running power supply.
Contact closes
Contact opens
Switching hysteresis
Contact ratings
Isolation voltage

As soon as the output voltage reaches 22V.
As soon as the output voltage falls below 22V.
Typically, 0.7V
Maximal 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A, resistive load
Minimal permissible load: 1mA at 5Vdc
See dielectric strength table in chapter 18.

Fig. 8-1 DC-OK relay contact behavior

Output Voltage
22V

open

closedFeb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

8/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

9. EFFICIENCY AND POWER LOSSES
Efficiency
Average efficiency*)

Typ.
Typ.

AC 100V
90.7%
89.2%

AC 120V
91.2%
89.4%

AC 230V
92.3%
90.6%

Power losses

Typ.
Typ.
Typ.

1.4W
7.0W
12.3W

1.5W
7.4W
11.6W

0.7W
6.0W
10.0W

*)

At 24V, 5A
25% at 1.25A, 25% at 2.5A,
25% at 3.75A. 25% at 5A
At 24V, 0A
At 24V, 2.5A
At 24V, 5A

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 thetime.

Fig. 9-1 Efficiency vs. output current at 24V, typ.

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

Efficiency

Power Losses

93%
c
92
b
91
a
90
89
a) 100Vac
88b) 120Vacc) 230Vac8786
Output Current
85
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5A

12W

a
b
c

10
8
6
a) 100Vacb) 120Vacc) 230Vac

42

Output Current

0
0

1

2

3

4

Fig. 9-3 Efficiency vs. input voltage at 24V, 5A, typ.

Fig. 9-4 Losses vs. input voltage at 24V, 5A, typ.

Efficiency

Power Losses

93%

14W

5A

92
12

91

10

90
89

8

88
Input Voltage

87
90

120

155

180

230 260Vac

Input Voltage

6
90

120

155

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
output load, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany180

230 260Vac

9/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

10. FUNCTIONAL DIAGRAM
Fig. 10-1 Functional diagram
OutputVoltage
Regulator

L
N

Input Fuse&
Input Filter

Input
Rectifier&InrushLimiter (NTC)

115/230V
Auto
SelectPower
Converter

OutputOverVoltage
Protection

OutputFilter

VOUT

+
+
DC
ok

DC-ok
Relay

DC-ok
Contact

11. FRONT SIDE AND USER ELEMENTS
Fig. 11-1 Front sideA

Input Terminals
N, LLine input
PE (Protective Earth) input

B

Output Terminals
Two identical + poles and two identical - poles+
Positive output–
Negative (return) output

C

DC-OK LED (green)
On, when the output voltage is above 18V.

D

Output Voltage Adjustment Potentiometer

E

DC-OK Relay Contact
The DC-OK relay contact is not synchronized with the DC-OK LED.
See chapter 8 for details.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

10/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

12. CONNECTION TERMINALSThe terminals are IP20 finger safe constructed and suitable for field- and factory wiring.
Input
Screw Terminal
Max. 6mm2Max. 4mm2
AWG 20-10
2.8mm
Max. 1Nm
7mm
4mm slotted or crosshead
No 1

Type
Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter (including ferrules)
Recommended tightening torque
Wire stripping length
Screwdriver

OutputScrew Terminal
Max. 6mm2Max. 4mm2
AWG 20-10
2.8mm
Max. 1Nm
7mm
4mm slotted or crosshead
No 1

DC-OK-Signal
Push-in Terminal
Max. 1.5mm2Max. 1.5mm2
AWG 24-16
1.6mm
7mm
3mm slotted to open thespring13. LIFETIME EXPECTANCYThe 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 thecapacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.

Lifetime expectancy

AC 100V
66 000h
181 000h
188 000h
511 000h

AC 120V
68 000h
194 000h
193 000h
548 000h

AC 230V
83 000h
219 000h
234 000h
621 000h

At 24V, 5A and 40°C
At 24V, 2.5A and 40°C
At 24V, 5A and 25°C
At 24V, 2.5A and 25°C

14. MTBF
MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of adevice. 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 thatstatistically 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.

MTBF SN 29500, IEC 61709
MTBF MIL HDBK 217F

AC 100V
1 065 000h
2 038 000h
681 000h
872 000h
165 000h
206 000h

AC 120V
1 147 000h
2 166 000h
651 000h
842 000h
164 000h
205 000h

AC 230V
1 379 000h
2 519 000h
645 000h
839 000h
168 000h
211 000h

At 24V, 5A and 40°C
At 24V, 5A and 25°C
At 24V, 5A and 40°C, Ground Benign GB40
At 24V, 5A and 25°C, Ground Benign GB25
At 24V, 5A and 40°C, Ground Fixed GF40
At 24V, 5A and 25°C, Ground Fixed GF25

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

11/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

15. EMCThe EMC behavior of the device is designed for applications in industrial environment as well as in residential, commercial and lightindustry environments.
The device complies with EN 61000-6-1, EN 61000-6-2, EN 61000-6-3, EN 61000-6-4, EN 61000-3-2 and EN 61000-3-3.
This device complies with FCC Part 15 rules. Operation is subjected to following two conditions: (1) this device may not cause harmfulinterference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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 industrial, residential, commercial and light-industrial environments.
EMC Immunity
Electrostatic discharge

EN 61000-4-2

Electromagnetic RF field
Fast transients (Burst)

EN 61000-4-3
EN 61000-4-4

Surge voltage on input

EN 61000-4-5

Surge voltage on output

EN 61000-4-5

Surge voltage on DC-OK
Conducted disturbance
Mains voltage dips

EN 61000-4-5
EN 61000-4-6
EN 61000-4-11

Voltage interruptions
Powerful transients

EN 61000-4-11
VDE 0160

Contact discharge
Air discharge
80MHz-2.7GHz
Input lines
Output lines
DC-OK signal (coupling clamp)
L→N
L → PE, N → PE+→+ / - → PE
DC-OK signal → PE
0.15-80MHz
0% of 100Vac
40% of 100Vac
70% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac
0V
Over entire load range

8kV
8kV
20V/m
4kV
2kV
2kV
2kV
4kV
500V
1kV
1kV
20V
0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms
5000ms
750V, 1.3ms

Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion C
below 4.5A Criterion A
above 4.5A Criterion C
Criterion A
Criterion C
Criterion A
Criterion C
Criterion A

Performance 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 emission
input lines
Conducted emission
output lines
Radiated emission
Harmonic input current
Voltage fluctuations, flicker

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

Class B

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

Limits for DC power port acc. EN
61000-6-3 not fulfilled
Class B
Fulfilled, Class A limits
Fulfilled, tested with constantcurrent loads, non pulsing

EN 55011, EN 55032
EN 61000-3-2
EN 61000-3-3

Switching frequencies:
Main converter

40kHz to 120kHz

Output voltage and load dependent, min. load 1A

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

12/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

16. ENVIRONMENT
Operational temperature

Storage temperature
Output derating

Humidity
Atmospheric pressure
AltitudeOver-voltage category
Impulse withstand voltages
Degree of pollution
Vibration sinusoidal

Shock

Audible noise-10°C to +70°C

Operational temperature is the same as the ambient or
surrounding temperature and is defined as the airtemperature 2cm below the unit.
-40°C to +85°C
For storage and transportation
3W/°C
Between +55°C and +70°C
7.5W/1000m or 5°C/1000m
For altitudes >2000m, see Fig. 16-2
The derating is not hardware controlled. The user has to take this into consideration to stay below thede-rated current limits in order not to overload the unit.
5 to 95% r.h.
According to IEC 60068-2-30
110-54kPa
See Fig. 16-2 for details
Up to 5000m
See Fig. 16-2 for details
II
According to IEC 60664-1, for altitudes up to 5000m
4kV (according to over-voltage
Input to PE
category III)
According to IEC 60664-1, for altitudes up to 2000m
2
According to IEC 60664-1, not conductive
2-17.8Hz: ±1.6mm;
According to IEC 60068-2-6
17.8-500Hz: 2g
2 hours / axis
30g 6ms, 20g 11ms
According to IEC 60068-2-27
3 bumps per direction, 18 bumps in
total
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.
Some audible noise may be emitted from the power supply during no load, overload or short circuit.

Fig. 16-1 Output current vs. ambient temp.

Allowed Output Current at 24V

Fig. 16-2 Output current vs. altitude

Allowed Output Current at 24V

5.0A
A
B

5.0A
4.7A
4.1A

A
B

3.1A
2.5A
A... Tamb < 45°C
B... Tamb < 55°C

A: AC100-120V / 208-240V
B: AC100V / 200V

0
-10

0

+50 +55 +70°C
Ambient Temperature

Altitude 0mAP*) 110kPa

2000m
80kPa

4000m 5000m
62kPa 54kPa*) Atmospheric pressure

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

13/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

17. SAFETY AND PROTECTION FEATURES
Isolation resistance

Output over-voltage protection

Min.

500MOhm

Min.

500MOhm

Min.

500MOhm

Min.

500MOhm

Typ.
Max.

31.0Vdc
34.0Vdc
In case of an internal defect, a redundant circuit limits the maximum output voltage.
The output shuts down. To attempt a restart, turn the input power off for at least 90s.
I
According to IEC 61140
A PE (Protective Earth) connection is required
IP 20
According to EN/IEC 60529

Class of protection
Ingress protection
Over-temperature protection
Input transient protection
Internal input fuse
Touch current (leakage current)

Typ.
Typ.
Typ.
Max.
Max.
Max.

Not included
MOV (Metal Oxide
Varistor)
Included
0.21mA / 0.46mA
0.30mA / 0.65mA
0.33mA / 0.72mA
0.27mA / 0.56mA
0.38mA / 0.78mA
0.43mA / 0.90mA

At delivered condition between input and output, measured
with 500Vdc
At delivered condition between input and PE, measured with
500VdcAt delivered condition between output and PE, measured
with 500Vdc
At delivered condition between output and DC-OK contacts,
measured with 500Vdc

For protection values see chapter 15 (EMC).
Not user replaceable slow-blow high-braking capacity fuse
At 100Vac, 50Hz, TN-,TT-mains / IT-mains
At 120Vac, 60Hz, TN-,TT-mains / IT-mains
At 230Vac, 50Hz, TN-,TT-mains / IT-mains
At 110Vac, 50Hz, TN-,TT-mains / IT-mains
At 132Vac, 60Hz, TN-,TT-mains / IT-mains
At 264Vac, 50Hz, TN-,TT-mains / IT-mains

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

14/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

18. DIELECTRIC STRENGTH
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.
We recommend that either the + pole or the – pole shall be connected to the protective earth system. This helps to avoid situations inwhich a load starts unexpectedly or can not be switched off when unnoticed earth faults occur.

Type test

60s

A
2500Vac

B
3000Vac

C
1000Vac

D
500VacRoutine test

5s

2500Vac

2500Vac

500Vac

500Vac2000Vac

2000Vac

500Vac

500Vac> 10mA> 10mA> 15mA> 1mA

Fig. 18-1 Dielectric strength

Input

DC-ok
B*)

L
N

B

A

Field test
5s
Field test cut-off current
settings

D
OutputEarth, PE
C

+

-

B*)
When testing input to DC-OK ensure that the maximal voltage between DC-OK and the output is
not exceeded (column D). We recommend connecting DC-OK pins and the output pins together
when performing the test.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

15/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

19. APPROVED, FULFILLED OR TESTED STANDARDSIEC 61010

UL 61010

IEC 62368

IEC 61558-2-16

ISA-71.04-1985

VDMA 24364

CB Scheme Certificate
IEC 61010-2-201 Electrical Equipment for Measurement, Control andLaboratory Use - Particular requirements for control equipment
UL Certificate
Listed equipment for category NMTR - UL 61010-2-201 Electrical
Equipment for Measurement, Control and Laboratory Use - Particularrequirements for control equipment
Applicable for US and Canada
E-File: E198865
CB Scheme Certificate
IEC 62368-1 Audio/video, information and communication technology
equipment - Safety requirements
Output safety level: ES1
Test Certificate
IEC 61558-2-16 - Safety of transformers, reactors, power supply units andsimilar products for supply voltages up to 1100 V
Particular requirements and tests for switch mode power supply units andtransformers for switch mode power supply units
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
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

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

16/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

20. REGULATORY PRODUCT COMPLIANCE
EU Declaration of Conformity

REACH Regulation (EU)

WEEE Regulation

KC

UKCA

The CE mark indicates conformance with the- EMC directive- Low-voltage directive- RoHS directive
Manufacturer's Declaration
EU regulation regarding the Registration, Evaluation, Authorisation andRestriction of Chemicals (REACH) fulfilled.
EU Regulation (EC) 1907/2006.
Manufacturer's Declaration
EU Regulation on Waste Electrical and Electronic Equipment
Registered as business to business (B2B) products.
EU Regulation 2012/19/EU
KC Korean Certification
Korean - Registration of Broadcasting and Communication Equipment
Registered under Clause3, Article 58-2 of Radio Waves Act.
Registration No. R-R-PUG-PIC120.241D
UKCA Declaration of Conformity
Trade conformity assessment for England, Scotland and WalesThe UKCA mark indicates conformity with the UK Statutory Instruments
2016 No.1101,
2016 No.1091,
2012 No.3032

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

17/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

21. PHYSICAL DIMENSIONS AND WEIGHT
Width
HeightDepth

WeightDIN rail
Plastic Material of Housing
Installation Clearances
Penetration protection

39mm
124mm
124mm
The DIN rail depth must be added to the unit depth to calculate the total required installation
depth.
370g
Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Flame retardant Polycarbonate (PC) - UL94-V0
Vicat softening temperature specified with 149°C according to ASTM D1525
See chapter 2
Small parts like screws, nuts, etc. with a diameter larger than 4mm

Fig. 21-1 Front viewFig. 21-2 Side view

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

18/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

22. ACCESSORY
22.1. PIRD20.241 REDUNDANCY MODULE
The PIRD20.241 is a dual redundancy module, which can be used to build 1+1 or N+1 redundant system.
The device is equipped with two 10A nominal input channels, which are individually decoupled by utilizing diodetechnology. The output can be loaded with a nominal 20A continuous current.
The device does not require an additional auxiliary voltage and is self-powered even in case of a short circuit acrossthe output.
The unit is very narrow and only requires 39mm width on the DIN rail.
See chapter 23.4 for wiring information.

22.2. UF20.241 BUFFER MODULEThe UF20.241 buffer module is a supplementary device for DC 24V power supplies. It delivers power to bridge
typical mains failures or extends the hold-up time after the AC power is turned off.
When the power supply provides a sufficient voltage, the buffer module stores energy in the integrated
electrolytic capacitors. When the mains voltage is lost, the stored energy is released to the DC-bus in a
regulated process.
The buffer module can be added in parallel to the load circuit at any given point and does not require any
control wiring.
One buffer module can deliver 20A additional current and can be added in parallel to increase the output
ampacity or the hold-up time.
For longer hold-up times the UF40.241 might also be an option.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

19/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

23. APPLICATION NOTES
23.1. CHARGING OF BATTERIES
Do not use the power supply to charge batteries.

23.2. SERIES OPERATION

Unit A

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 andavoid installing the power supplies on top of each other. Do not use power supplies inseries in mounting orientations other than the standard mounting orientation.

Input

+
Output+Unit B

Load

Input

+
-

-

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

23.3. PARALLEL USE TO INCREASE OUTPUT POWER
Do not use the power supply in parallel to increase the output power.

23.4. PARALLEL USE FOR 1+1 REDUNDANCY
The device can be used to built 1+1 redundant systems.
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 caseone device fails, the other one is automatically able to support the load current without any interruption. It is essential to use aredundancy module to decouple devices from each other. This prevents that the defective unit becomes a load for the other device andthe output voltage cannot be maintained any more.
1+1 redundancy allows ambient temperatures up to +70°C.
Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple devices.
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 individual devices. Therefore, use the DC-OK signal of the device.
- It is desirable to set the output voltages of all devices to the same value (± 100mV) or leave it at the factory setting.

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

20/21

PIC120.241D
24V, 5A, 120W, SINGLE PHASE INPUTPIANO-Series

Wiring examples:Fig. 23-1 1+1 Redundant wiring with a PIRD20.241 redundancy module
FailureMonitor+ + - -

+ + - -

Output24V 5A

Output24V 5ADCOKoo

PIC120Power Supply

DCOK- - ++
Input Input
2
1

o
o

PIC120Power Supply

PIRD20.241
Redundancy
Module

Input

Input

Output

L N PEL N PE

-++

I

5A
Load

I

L
N
PE

23.5. OPERATION ON TWO PHASESPower Supply

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

240V +10% max.

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

L1

L3

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

AC
L
N
PE

L2

DC

23.6. 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. In
such situations, the inside temperature defines the ambient temperature for the power supply.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
The power supply is placed in the middle of the box, no other heat producing items are inside the box
The temperature sensor inside the box is placed in the middle of the right side of the power supply with a distance of 1cm.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
Enclosure size

Case A
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100, plastic

Case B
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100, plastic

Input voltage
Load
Temperature inside the box
Temperature outside the box
Temperature rise

230Vac
24V, 4A; (=80%)
35.5°C
21.0°C
14.5K

230Vac
24V, 5A; (=100%)
38.1°C
21.0°C
17.1K

Feb. 2023 / Rev. 1.4 DS-PIC120.241D-EN 2 All parameters are typical values specified 230Vac, 50Hz input voltage, 24V, 5A
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

21/21