PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

POWER SUPPLY








AC 200-240V Regional Input
Cost Optimized without Compromising Quality or
Reliability.
Width only 49mm
Efficiency up to 91.4%
Full Power Between -10°C and +55°C
DC-OK Relay Contact Included
3 Year Warranty

GENERAL DESCRIPTIONSHORT-FORM DATA

These PIANO series units are extraordinarily compact,industrial grade power supplies that focus on theessential features needed in today’s industrial
applications. The excellent cost/performance ratio
presents many new and exciting opportunities withoutcompromising quality or reliability.

Output voltage
Adjustment range
Output current

The mechanically robust housing is made of a highgrade, reinforced molded material, which permits theunits to be used in surrounding temperatures up to
70°C.
Since typical industrial applications do not require
multiple mains inputs, the reduction to a regional input
voltage range (AC 200-240V) simplifies the circuitry andhas significant advantages for reliability, efficiency andcost.
The addition of a DC-OK signal makes the unit suitable
for many industry applications such as: process,automation and many other critical applications where
preventive function monitoring can help to avoid long
downtimes.

ORDER NUMBERS
Power Supply

PIC240.241C

Accessory

YR2.DIODE
UF20.241

DC 24V24 - 28V
10A
at 24V, amb <55°C
6.25A
at 24V, amb <70°C
8.6A
at 28V, amb <55°C
5.4A
at 28V, amb <70°C
Output power
240W
ambient <55°C
150W
ambient <70°C
Output ripple< 100mVpp
20Hz to 20MHz
AC Input voltage
AC 200-240V±10%
Mains frequency
50-60Hz±6%
AC Input current
2.2A
at 230Vac
Power factor
0.52
at 230Vac
AC Inrush current
typ. 48A peak at 230Vac, 40°C
Efficiency
91.4%
at 230Vac
Losses
22.6W
at 230Vac
Temperature range -10°C to +70°C operational
Derating
6W/°C+55 to +70°C
Hold-up time
33ms
at 230Vac
Dimensions
49x124x124mm WxHxD
Weight550g / 1.2lb

MARKINGS
Redundancy module
Buffer Module

IEC 61010-2-201

UL 61010-2-201

MarineMarineMar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

IEC 62368-1

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PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

INDEX
Page
1. Intended Use .......................................................3
2. Installation Instructions ......................................4
3. AC-Input...............................................................5
4. DC-Input...............................................................6
5. Input Inrush Current ...........................................6
6. Output .................................................................7
7. Hold-up Time .......................................................8
8. DC-OK Relay Contact ..........................................8
9. Efficiency and Power Losses................................910. Lifetime Expectancy and MTBF...........................911. Functional Diagram...........................................10
12. Terminals and Wiring ........................................10
13. Front Side and User Elements ...........................11
14. EMC ....................................................................12
15. Environment ......................................................13
16. Protection Features ...........................................14
17. Safety Features ..................................................14
18. Dielectric Strength ............................................15Page
19. Approvals and Fulfilled Standards................... 16
20. Regulatory Compliance .................................... 17
21. Physical Dimensions and Weight ..................... 18
22. Accessory ........................................................... 19
22.1. UF20.241 Buffer module .......................... 19
22.2. YR2.DIODE Redundancy Module ............. 19
23. Application Notes ............................................. 20
23.1. Back-feeding Loads .................................. 20
23.2. External Input Protection ......................... 20
23.3. Parallel Use to Increase Output Power .... 20
23.4. Parallel Use for 1+1 Redundancy ............. 20
23.5. Series Operation ....................................... 21
23.6. Inductive and Capacitive Loads................ 21
23.7. Charging of Batteries ............................... 21
23.8. Operation on Two Phases ........................ 21
23.9. Use in a Tightly Sealed Enclosure ............ 22

The information presented in this document is believed to be accurate and reliable and may change without notice.
No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.

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 withstandard 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 230V parameters are valid at 50Hz mains frequency.

may

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

shall

A key word indicating a mandatory requirement.

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

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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PIC240.241C
PIANO-Series

24V, 10A, 240W, SINGLE PHASE INPUT

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 harmonic input current (PFC), the power supply is not suited to beconnected to the public mains system in residential, commercial and light-industrial environments. No additional
measures are necessary for use in industrial environments. Exceptions for various countries outside the European
Union exist and can be determined locally.
Do not use this device on AC 200V mains with more than 8A load when the application is sensitive to short output
voltage dips during mains interruptions even with a length shorter than 20ms.

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

3/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

2. INSTALLATION INSTRUCTIONSWARNING

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

- Turn power off before working on the device and protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- 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 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 aredesigned for a minimum 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 toIEC 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 notcover ventilation grid!
The device is designed for altitudes up to 5000m (16400ft). Above 2000m (6560ft) 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 to 15mm in case the adjacent device is a heat source. When the device is permanently loaded withless 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 16A B- or 10A 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 ambientor surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

3. AC-INPUT
AC input
AC input range

nom.

External input protection

AC 200-240V
suitable for TN-, TT- and IT mains networks
180-264Vac
continuous operation
264-300Vac< 500msmax.
300Vaccontinuous, IEC 62103
nom.
50–60Hz±6%
typ.
173Vacsteady-state value, see Fig. 3-1
typ.
107Vacat 24V 0A, steady-state value, see Fig. 3-1
typ.
140Vacat 24V 10A, steady-state value, see Fig. 3-1
See recommendations in chapter 23.3.

Input current
Power factor*)
Crest factor**)Start-up delay
Rise time

typ.
typ.
typ.
typ.
typ.

2.2A
0.52
3.7
130ms
35ms

typ.

100ms

max.

200mV

Allowed voltage L or N to earth
Input frequency
Turn-on voltage
Shut-down voltage

Turn-on overshootat 24V, 10A, 230Vac, see Fig. 3-3
at 24V, 10A, 230Vac, see Fig. 3-4
at 24V, 10A, 230Vac
see Fig. 3-2
at 24V, 10A const. current load, 0mF load
capacitance, see Fig. 3-2
at 24V, 10A const. current load, 10mF load
capacitance,, see Fig. 3-2
see Fig. 3-2*) 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 RMS value of the input current waveform.

Rated
input range

max.
500ms

Turn-onShut-down

POUT

Fig. 3-2 Turn-on behavior, definitions

Input
Voltage- 5%

OutputVoltage

VIN
180V

Start-up
delay

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

Fig. 3-4 Power factor vs. output load

Power Factor, typ.

3A

0.65

2.5

0.60

2.0

0.55

1.5

0.50

1.0

0.45

0.5

Output Current

0
1

2

3

4

Rise
Time

264V 300Vac

Input Current, typ.

0

OvershootFig. 3-1 Input voltage range, typ.

5

6

7

8

9 10A

0.40

Output Current

0.35
1

2

3

4

5

6

7

8

9 10A

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

5/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

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

5. INPUT INRUSH CURRENTA NTC inrush limiter limits the input inrush current after turn-on of the input voltage.
Inrush current*)

Inrush energy*)
*)

max.
typ.
typ.
max.

59Apeak
48Apeak
35Apeak
2.5A2s

40°C ambient, 230Vac, cold start
40°C ambient, 230Vac, cold start
25°C ambient, 230Vac, cold start
40°C ambient, 230Vac, cold start

The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.
Fig. 5-1 Input inrush current, typical behavior
230Vac input, 24V 10A output, 25°C ambient

Fig. 5-2 Input inrush current, zoom into first peak
230Vac input, 24V 10A output, 25°C ambient

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

6/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

6. OUTPUT
Output voltage
Adjustment range

nom.
max.
typ.
max.
max.
max.
nom.
nom.
nom.
nom.
nom.
nom.

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

Output power
Overload behaviour
Short-circuit current
Output capacitance
*)
**)

max.
typ.

DC 24V
24-28V
30V**)
24.1V
50mV
150mV
100mVpp
10A
6.25A
8.6A
5.4A
240W
150W
continuous current
16A*)
4 400µF

guaranteed
at clockwise end position of potentiometer±0.2%, at full load, cold unit
187-264Vac
static value, 0A  10A; see Fig. 6-1
20Hz to 20MHz, 50Ohm
at 24V, ambient temperature <55°C, see Fig. 6-1
at 24V, ambient temperature <70°C, see Fig. 6-1
at 28V, ambient temperature <55°C, see Fig. 6-1
at 28V, ambient temperature <70°C, see Fig. 6-1
ambient temperature <55°C
ambient temperature <70°C
see Fig. 6-1
load impedance 50mOhm
included inside the power supply

Discharge current of output capacitors is not included.
This is the maximum output voltage which can occur at the clockwise end position of the potentiometer due to tolerances. It is notguaranteed value which can be achieved. The typical value is about 28.5V.
Fig. 6-1 Output voltage vs. output current,
typ.

Output Voltage

Adjustment
Range

28V
24
20
16
12
8
4
0

Output Current

0

2

4

6

8

10

12

14 16A

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

7/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

7. HOLD-UP TIME
Hold-up Time

typ.
min.
typ.
min.

75ms
59ms
33ms
25ms

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

Hold-up Time
24V 5A typ.
80ms a)b) 24V 5A min.
c) 24V 10A typ.
70d) 24V 10A min.
60
50
40
30
20
10
Input Voltage
0
170
200
230

a

at 24V, 5A, 230Vac, see Fig. 7-1
at 24V, 5A, 230Vac, see Fig. 7-1
at 24V, 10A, 230Vac, see Fig. 7-1
at 24V, 10A, 230Vac, see Fig. 7-1
Fig. 7-2 Shut-down behavior, definitions

Zero Transition

b

Input
Voltagecd- 5%

OutputVoltage
Hold-up Time
264Vac8. DC-OK RELAY CONTACT
This feature monitors the output voltage, which is produced by the power supply itself. It is independent of a back-fed
voltage from a unit connected in parallel to the power supply output (e.g. redundant application).
Threshold voltage
Contact closes
Contact opens
Contact ratings
Isolation voltage

typ.
21.4V (fixed)
As soon as the output voltage reaches 21.4V.
As soon as the output voltage falls below 21.4V.
max.
60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A
resistive loadmin.
1mA at 5Vdc
min. permissible load
See dielectric strength table in section 18.

Fig. 8-1 DC-ok relay contact behavior

Output Voltage
21.4V

open

closedMar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

8/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

9. EFFICIENCY AND POWER LOSSES
Efficiency
Average efficiency*)
Power losses

*)

typ.
typ.
typ.
typ.
typ.

91.4%
90.9%
5.5W
11.0W
22.6W

at 24V, 10A, 230Vac
25% at 2.5A, 25% at 5A, 25% at 7.5A. 25% at 10A
at 24V, 0A, 230Vac
at 24V, 5A, 230Vac
at 24V, 10A, 230Vac

The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%of the nominal load for the rest of the time.
Fig. 9-1 Efficiency vs. output current at 24V,
typ.

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

Power Losses

Efficiency

24W
21
18
15
12
9
6
3
0

92%
91
90
89
88
87
Output Current

86
2

3

4

5

6

7

8

9

Output Current

0

10A

1

2

3

4

5

6

7

8

9 10A

10. LIFETIME EXPECTANCY AND MTBF
Lifetime expectancy*)

MTBF**) SN 29500, IEC 61709
MTBF**) MIL HDBK 217F

84 000h
236 000h*)
38 000h
107 000h
791 000h
1 588 000h
568 000h
765 000h
151 000h
194 000h

at 24V, 5A and 40°C, 230Vac
at 24V, 5A and 25°C, 230Vac
at 24V, 10A and 40°C, 230Vac
at 24V, 10A and 25°C, 230Vac
at 24V, 10A and 40°C, 230Vac
at 24V, 10A and 25°C, 230Vac
at 24V, 10A and 40°C, 230Vac;
Ground Benign GB40
at 24V, 10A and 25°C, 230Vac;
Ground Benign GB25
at 24V, 10A and 40°C, 230Vac;
Ground Fixed GF40
at 24V, 10A and 25°C, 230Vac;
Ground Fixed GF25

The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime
expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to 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.
**) 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.

*)Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

9/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

11. FUNCTIONAL DIAGRAM
Fig. 11-1 Functional diagram PIC240.241C
OutputVoltage
Regulator

L
N

Input Fuse&
Input Filter

Input
Rectifier&InrushLimiter (NTC)

OutputOverVoltage
Protection

Power
Converter

VOUT

+
+
-

OutputFilter

DC
ok
DC-ok
Relay

DC-ok
Contact

12. TERMINALS AND WIRING
The terminals are IP20 finger safe constructed and suitable for field- and factory wiring.
Type
Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter
Wire stripping length
Screwdriver
Recommended tightening torque

Input and output
screw terminals
max. 6mm2
max. 4mm2
AWG20-10
2.8mm (including ferrules)
7mm / 0.28inch
3.5mm slotted or cross-head No 2
1Nm, 9lb.in

DC-OK-Signal
push-in terminals
max. 1.5mm2
max. 1.5mm2
AWG28-16
1.6mm (including ferrules)
7mm / 0.28inch
not required
not applicable

Instructions:a) Use appropriate copper cables that are designed for minimum operating temperatures of:
75°C for ambient up to 55°C and
90°C for ambient up to 70°C minimum.
b) Follow national installation codes and installation regulations!
c) Ensure that all strands of a stranded wire enter the terminal connection!
d) Do not use the unit without PE connection.
e) Unused terminal compartments should be securely tightened.
f) Ferrules are allowed.

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

10/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

13. FRONT SIDE AND USER ELEMENTS
Fig. 13-1 Front sideA

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

B

Output Terminals (screw terminals, two pins per pole)+
Positive output–
Negative (return) output

C

Output voltage potentiometer
Guaranteed adjustment range: 24-28V
Factory set: 24.1V

D DC-OK LED (green)
On, when the output voltage is >18V
E

DC-OK Relay Contact (push-in terminals)
Description see chapter 8.

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

11/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

14. EMCThe power supply is suitable for applications in industrial environment as well as in residential, commercial and lightindustry environment. Restrictions apply on public mains (PFC), see chapter 1.
A detailed EMC report is available on request.
EMC Immunity
Electrostatic discharge
Electromagnetic RF field
Fast transients (Burst)

Surge voltage on input
Surge voltage on output
Surge voltage on DC-OK
Conducted disturbance
Mains voltage dips

According generic standards: EN 61000-6-1 and EN 61000-6-2
contact discharge
8kV
EN 61000-4-2
air discharge
8kV
EN 61000-4-3
80MHz-2.7GHz
20V/m
input lines
4kV
EN 61000-4-4
output lines
2kV
DC-OK signal (coupling clamp)
2kV
LN
2kV
EN 61000-4-5
L  PE, N  PE
4kV
+500VEN 61000-4-5+ / -  PE
1kV
EN 61000-4-5
DC-OK signal  PE
1kV
EN 61000-4-6
0.15-80MHz
20V
0Vac, 20ms
EN 61000-4-11
0% of 200Vac
0Vac, 20ms
0% of 200Vac
80Vac, 200ms
40% of 200Vac
140Vac, 500ms
70% of 200Vac

Voltage interruptions
Voltage sags

EN 61000-4-11
SEMI F47 0706

Powerful transients

VDE 0160

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 <8A
Criterion B >8A
Criterion C
Criterion C

0% of 200Vac (=0V)
5000msCriterion C
dips on the input voltage according to SEMI F47 standard
80% of 200Vac (160Vac)
1000msCriterion A
70% of 200Vac (140Vac)
500ms
Criterion C
50% of 200Vac (100Vac)
200ms
Criterion C
over entire load range
750V, 1.3ms
Criterion A

Criterions:
A: Power supply shows normal operation behavior within the defined limits.
B: Temporary voltage dips possible. No change in operation mode.
C: Temporary loss of function is possible. Power supply may shut-down and restarts by itself. No damage or hazards for the power supply
will occur.

EMC Emission
Conducted emission
input lines
Conducted emission
output lines**)According generic standards: EN 61000-6-4
EN 55011, EN 55032, FCC Part 15, CISPR 11, CISPR 32

Class Blimits for DC power port
according EN 61000-6-3 not
fulfilledClass B fulfilled
not fulfilledfulfilled*)

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

Radiated emission
EN 55011, EN 55032
Harmonic input current
EN 61000-3-2
Voltage fluctuations, flicker EN 61000-3-3This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) thisdevice must accept any interference received, including interference that may cause undesired operation.
*) tested with constant current loads, non pulsing**) for information only, not mandatory for EN 61000-6-3

Switching frequency

75kHz to 120kHz

Main converter, input voltage and output current dependentMar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

15. ENVIRONMENT
Operational temperature*)
Storage temperature
Output de-rating
Humidity**)Vibration sinusoidal
Shock
Altitude-10°C to +70°C (14°F to 158°F)-40°C to +85°C (-40°F to 185°F)
6W/°C
5 to 95% r.h.
2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g***)2 hours / axis***)30g 6ms, 20g 11ms***)3 bumps / direction, 18 bumps in total
0 to 2000m (0 to 6 560ft)
2000 to 6000m (6 560 to 20 000ft)

reduce output power according Fig. 15-1
for storage and transportation
55°C to 70°C (131°F to 158°F)
IEC 60068-2-30
IEC 60068-2-6
IEC 60068-2-27

without any restrictions
reduce output power or ambient temperature,
see Fig. 15-2
IEC 62103, EN 50178, overvoltage category II
15W/1000m or 5°C/1000m> 2000m (6500ft), see Fig. 15-2
III
IEC 62103, EN 50178, altitudes up to 2000m
II
altitudes from 2000m to 6000m
2
IEC 62103, EN 50178, not conductive
The unit does not release any silicone or other LABS-critical substances and is suitable foruse in paint shops.

Altitude de-rating
Over-voltage category
Degree of pollution
LABS compatibility*)

Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below theunit.
**) Do not energize while condensation is present***) Tested on a DIN-Rail with a thickness of 1.3mm.
Fig. 15-1 Output current vs. ambient temp.

Allowable Output Current at 24V
10A

Fig. 15-2 Output current vs. altitude

Allowed Output
Current at 24V

12A

7.5A

10A

6.3A

8A

5.0A

6A

C
B
A

4A

2.5A
Ambient Temperature

0
-10

0

+20

+40

+55 +70°C

A... Tamb < 55°C
B... Tamb < 45°C
C... Tamb < 35°C

2A

Altitude

0
0

2000

4000

6000m

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

13/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

16. PROTECTION FEATURES
Output protection
Output over-voltage protection

Degree of protection

Over-temperature protection
Input transient protection
Internal input fuse*)

Electronically protected against overload, no-load and short-circuits*)
typ. 31.5Vdc
In case of an internal power supply defect, a redundantmax. 34Vdc
circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.
EN/IEC 60529
IP 20
Caution: For use in a controlled environment according
to CSA 22.2 No 107.1-01.
yes
Output shut-down with automatic restart
MOV (Metal Oxide Varistor)
included
not user replaceable

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

17. SAFETY FEATURES
Input / output separation

Class of protection
Isolation resistance
Touch current (leakage current)

SELV
IEC/EN 60950-1
PELV
IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41
double or reinforced insulation
I
PE (Protective Earth) connection required> 5MOhm
input to output, 500Vdc
typ. 0.35mA / 0.73mA
230Vac, 50Hz, TN-,TT-mains / IT-mains
max. 0.46mA / 0.97mA
264Vac, 50Hz, TN-,TT-mains / IT-mains

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

14/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

18. DIELECTRIC STRENGTH
The output voltage is floating and has no ohmic connection to the ground. Type and factory tests are conducted by
the manufacturer. Field tests may be conducted in the field using the appropriate test equipment, which applies thevoltage 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.
Type test

60s

A
2500Vac

B
3000Vac

C
500VacD
500VacFactory test

5s

2500Vac

2500Vac

500Vac

500VacField test

5s

2000Vac

2000Vac

500Vac

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

Fig. 18-1 Dielectric strength

Input

DC-ok
B *)

L
N

Cut-off current setting
B

A

D
OutputEarth, PEC+-

To fulfil the PELV requirements according to EN60204-1 § 6.4.1, werecommend that either the + pole, the – pole or any other part ofthe output circuit shall be connected to the protective earthsystem. This helps to avoid situations in which a load starts
unexpectedly or can not be switched off when unnoticed earth
faults occur.

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

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

15/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

19. APPROVALS AND FULFILLED STANDARDSUL 61010

IEC 61010

IEC 62368

Marine (DNV GL)

Marine (ABS)

ISA-71.04-1985

VDMA 24364

UL Certificate
Listed equipment for category NMTR - UL 61010-2-201 Electrical
Equipment for Measurement, Control and Laboratory Use Particular requirements for control equipment
Applicable for US and Canada
E-File: E198865
CB Scheme Certificate
IEC 61010-2-201 Electrical Equipment for Measurement, Control
and Laboratory Use - Particular requirements for control
equipment
CB Scheme Certificate
IEC 62368-1 Audio/video, information and communication
technology equipment - Safety requirements
Output safety level: ES1
DNV-GL Certificate
DNV-GL Type approved product
Certificate: TAA00002JT
Temperature: Class B
Humidity: Class B
Vibration: Class C
EMC: Class A
Enclosure: Class A
ABS Design Assessment Certificate
ABS (American Bureau of Shipment) assessed product
Certificate: 17-HG1599236-PD
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

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

16/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

20. REGULATORY COMPLIANCE
EU Declaration ofConformity

REACH Directive

WEEE Directive

RoHS (China RoHS 2)

EAC TR Registration

The CE mark indicates conformance with the- EMC directive- Low-voltage directive- RoHS directive
Manufacturer's Statement
EU-Directive regarding the Registration, Evaluation,
Authorization and Restriction of Chemicals
Manufacturer's Statement
EU-Regulation on Waste Electrical and Electronic Equipment
Registered in Germany as business to business (B2B) products.
Manufacturer's Statement
Administrative Measures for the Restriction of the Use ofHazardous Substances in Electrical and Electronic Products
25 years
EAC Certificate
EAC EurAsian Conformity - Registration Russia, Kazakhstan
and Belarus
8504408200, 8504409000

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

17/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

21. PHYSICAL DIMENSIONS AND WEIGHT
Width
HeightDepth

WeightDIN-Rail
Plastic Material of Housing
Installation Clearances

49mm
1.93’’
124mm 4.88’’
124mm 4.88’’
The DIN-rail height must be added to the unit depth to calculate the total required
installation depth.
550g / 1.2lb
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

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

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

18/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

22. ACCESSORY
22.1. UF20.241 BUFFER MODULE
This buffer unit is a supplementary device for DC 24V power supplies. It delivers power to bridge typical mains failures
or extends the hold-up time after turn-off of the AC power. In times when the
power supply provides sufficient voltages, the buffer module stores energy inintegrated electrolytic capacitors. In case of mains voltage fault, this energy isreleased again in a regulated process. One buffer module can deliver 20A which canalso be used to support peak current demands.
The buffer unit does not require any control wiring. It can be added in parallel tothe load circuit at any given point. Buffer
Power
Bufferunits can be added in parallel to increase
Load
AC
SupplyUnit(s)the output ampacity or the hold-up time.

+
-

DC

22.2. YR2.DIODE REDUNDANCY MODULEThe YR2.DIODE is a dual redundancy module, which has two diodes with a common cathode included. It can be usedfor various purposes. The most popular application is to configure highly reliable andtrue redundant power supply systems.
Another interesting application is the
FailureMonitorseparation of sensitive loads from nonsensitive loads. This avoids the distortion+ + - + + - +- +IN 1 IN 2
24-28V
24-28Vof the power quality for the sensitive
DC-OK
DC-OK
loads which can cause controller
DCDCOKOK
YR2.Diodefailures.
Redundancy
PIC240.241C
Power Supply

See chapter 23.5 for instructions how tobuild a redundant system.

L N PEI

ModuleOUT

PIC240.241C
Power Supply+ -L N PEI

L
N
PE

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

24V,10A
Load

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PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

23. APPLICATION NOTES
23.1. 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. (Electro Magnetic Force).
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 6.

23.2. EXTERNAL INPUT PROTECTION
The unit is tested and approved for branch circuits up to 30A (UL) and 32A (IEC). An external protection is only
required if the supplying branch has an ampacity greater than this. Check also local codes and local requirements. In
some countries local regulations might apply.
If an external fuse is necessary or utilized, minimum requirements need to be considered to avoid nuisance tripping of
the circuit breaker. A minimum value of 16A B- or 10A C-Characteristic breaker should be used.

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 REDUNDANCYPower supplies 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 power supply unit fails. The simplest way
is to put two power supplies in parallel. This is called a 1+1 redundancy.
In case one power supply unit fails, the other one is automatically able
to support the load current without any interruption.

FailureMonitor
+ + -

DCOK

Please note: This simple way to build a redundant system does notcover failures such as an internal short circuit in the secondary side of
the power supply. In such a case, the defect unit becomes a load for theother power supplies and the output voltage can not be maintained any
more. This can only be avoided by utilizing decoupling diodes which areincluded in the redundancy module YR2.DIODE.
Recommendations for building redundant power systems:-

24-28V
DC-OK

PIC240.241C
Power Supply
L N PE

I

+ + -

+- +-

IN 1 IN 2

DCOK

YR2.Diode

Redundancy
ModuleOUT-

24-28V
DC-OK

PIC240.241C
Power Supply+ -L N PE

I

L
N
PE

24V,10A
Loada)

Monitor the individual power supply units. Therefore, use the DCOK relay contact of the PIC240.241C power supply.

b)

Use separate input fuses for each power supply.

c)

Use separate mains systems for each power supply whenever it is possible.

d)

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

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

20/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

23.5. SERIES OPERATION

Unit A

Power supplies 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 are not SELV any more and can be dangerous.
Such voltages must be installed with a protection against touching.

AC

Earthing of the output is required when the sum of the output voltage isabove 60Vdc.

AC

DC

+
+

Unit B

Avoid return voltage (e.g. from a decelerating motor or battery) which isapplied to the output terminals.

DC

Load

-

+
-

Earth
(see notes)

Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other.
Pay attention that leakage current, EMI, inrush current, harmonics will increase when using multiple power supplies.

23.6. INDUCTIVE AND CAPACITIVE LOADSNo limitations for inductive loads
No limitations for capacitive loads

23.7. CHARGING OF BATTERIES
Do not use the power supply to charge batteries.

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

Power Supply

240V +10% max.

L1

L3

AC
L
Fuse

N
PE

L2

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

internal
fuse

DC

21/22

PIC240.241C
24V, 10A, 240W, SINGLE PHASE INPUTPIANO-Series

23.9. 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.
Enclosure:
Input:

Rittal Type IP66 Box PK 9519 100, plastic, 180x180x165mm
230VacCase A:
Load:
Temperature inside the box:
Temperature outside the box:
Temperature rise:

24V, 10A; load is placed outside the box
54.4°C (in the middle of the right side of the power supply with a distance of 1cm)
25.2°C
29.2K

Case B:
Load:
Temperature inside the box:
Temperature outside the box:
Temperature rise:

24V, 8A; (=80%) load is placed outside the box
51.3°C (in the middle of the right side of the power supply with a distance of 1cm)
27.0°C
24.3K

Mar. 2021 / Rev. 2.0 DS-PIC240.241C-EN
All parameters are specified at 24V, 10A, 230Vac, 50Hz, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

22/22