Puls PIC240.241C Catalog Page

Q.

PIC240.241C

PIANO-Series

ENERAL DESCRIPTION

G

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

The mechanically robust housing is made of a high­grade, reinforced molded material, which permits the
units 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 and
has significant advantages for reliability, efficiency and
cost.

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.

RDER NUMBERS

O

Power Supply PIC240.241C 24-28V Standard unit

Accessory YR2.DIODE Redundancy module

with DC-OK contact

UF20.241 Buffer Module

24V, 10A, S

INGLE PHASE INPUT

OWER SUPPLY

P

 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

HORT-FORM DATA

S

Output voltage DC 24V
Adjustment range 24 - 28V
Output current 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
Weight 550g / 1.2lb

ARKINGS

M

IND. CONT. E

UL 508

Marine

UL 60950-1

EMC, LVD

Jan. 2016 / Rev. 1.5 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.

1/21

PIC240.241C

PIANO-Series

I

NDEX

Page Page

1.

2. Installation Requirements...................................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 ..........................................7

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

10. Lifetime Expectancy and MTBF...........................8

11. Functional Diagram.............................................9

12. Terminals and Wiring..........................................9

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

14. EMC....................................................................11

15. Environment ......................................................12

16. Protection Features ...........................................13

17. Safety Features ..................................................13

18. Dielectric Strength ............................................14

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.

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

19. Approvals.......................................................... 15

20. RoHS, REACH and Other Fulfilled Standards .. 15

21. Physical Dimensions and Weight ..................... 16

22. Accessory........................................................... 17

22.1. UF20.241 Buffer module ..........................17

22.2. YR2.DIODE Redundancy Module.............17

23. Application Notes............................................. 18

23.1. Peak Current Capability ...........................18

23.2. Back-feeding Loads ..................................18

23.3. External Input Protection.........................19

23.4. Parallel Use to Increase Output Power....19

23.5. Parallel Use for 1+1 Redundancy ............. 19

23.6. Series Operation .......................................20

23.7. Inductive and Capacitive Loads................20

23.8. Charging of Batteries ...............................20

23.9. Operation on Two Phases ........................21

23.10. Use in a Tightly Sealed Enclosure ............21

24V, 10A, S

INGLE PHASE INPUT

ERMINOLOGY AND ABREVIATIONS

T

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 ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)

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

tolerances included.

50Hz vs. 60Hz As long as not otherwise stated, AC 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.

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

Jan. 2016 / Rev. 1.5 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.

2/21

PIC240.241C

PIANO-Series

1. I

NTENDED USE

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

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

The power supply does not fulfil the harmonic current standard EN61000-3-2. Do not use this power supply when the
following criteria apply:

a) the end-device is used within the European Union and
b) the end-device is connected to a public mains supply with a nominal voltage greater or equal 220Vac and
c) 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.
Exception:

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.

24V, 10A, S

INGLE PHASE INPUT

2. I

NSTALLATION REQUIREMENTS

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.
Mount the unit on a DIN-rail so that the input terminals are located on the bottom of the unit.
This device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do

not cover ventilation grid (e.g. cable conduits) by more than 15%!
Keep the following installation clearances: 40mm on top, 20mm on the bottom, 5mm on the left and right sides are

recommended when the device is loaded permanently with more than 50% of the rated power. Increase this clearance
to 15mm in case the adjacent device is a heat source (e.g. another power supply).

A disconnecting means shall be provided for the output of the power supplies when used in applications according to
CSA C22.2 No 107.1-01.

WARNING

- Do not use the power supply without proper grounding (Protective Earth). Use the terminal on the input block for
earth connection.

- Turn power off before working on the device. Protect against inadvertent re-powering.

- Make sure that the wiring is correct by following all local and national codes.

- 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.

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

Jan. 2016 / Rev. 1.5 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.

3/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

3. AC-I

NPUT

AC input nom. AC 200-240V suitable for TN-, TT- and IT mains networks
AC input range min. 180-264Vac continuous operation
min. 264-300Vac < 500ms
Allowed voltage L or N to earth max. 300Vac continuous, IEC 62103
Input frequency nom. 50–60Hz ±6%
Turn-on voltage typ. 173Vac steady-state value, see Fig. 3-1
Shut-down voltage typ. 107Vac at 24V 0A, steady-state value, see Fig. 3-1
typ. 140Vac at 24V 10A, steady-state value, see Fig. 3-1
External input protection See recommendations in chapter 23.3.

Input current typ. 2.2A at 24V, 10A, 230Vac, see Fig. 3-3
Power factor*) typ. 0.52 at 24V, 10A, 230Vac, see Fig. 3-4
Crest factor
Start-up delay typ. 130ms see Fig. 3-2

**)

typ. 3.7 at 24V, 10A, 230Vac

Rise time typ. 35ms at 24V, 10A const. current load, 0mF load

capacitance, see Fig. 3-2

typ. 100ms at 24V, 10A const. current load, 10mF load

capacitance,, see Fig. 3-2

Turn-on overshoot max. 200mV 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.

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

P

OUT

Rated

input range

max.

500ms

Input
Voltage

Turn-on

Shut-down

180V

V

IN

300Vac264V

Output
Voltage

- 5%

Start-up

delay

Rise

Time

Overshoot

Fig. 3-3 Input current vs. output load at 24V Fig. 3-4 Power factor vs. output load

Input Current, typ.

3A

2.5

2.0

1.5

1.0

0.5

0

Jan. 2016 / Rev. 1.5 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.

Output Current

89

10A01234567

Power Factor, typ.

0.65

0.60

0.55

0.50

0.45

0.40

0.35
1

Output Current

579

10A234 6 8

4/21

PIC240.241C

PIANO-Series

4. DC-I

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

NPUT INRUSH CURRENT

5. I

A NTC inrush limiter limits the input inrush current after turn-on of the input voltage.

Inrush current
typ. 48A
typ. 35A
Inrush energy

*) 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

NPUT

*)

max. 59A

*)

max. 2.5A2s 40°C ambient, 230Vac, cold start

20ms/DIV

40°C ambient, 230Vac, cold start

peak

40°C ambient, 230Vac, cold start

peak

25°C ambient, 230Vac, cold start

peak

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

24V, 10A, S

INGLE PHASE INPUT

Input current
10A/DIV

Input voltage
500V/DIV

Output voltage 20V/DIV

Ipeak = 35A

500μs/DIV

Input current
10A/DIV

Jan. 2016 / Rev. 1.5 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.

5/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

6. O

UTPUT

Output voltage nom. DC 24V
Adjustment range min. 24-28V guaranteed
max. 30V

**)

at clockwise end position of potentiometer
Factory settings typ. 24.1V ±0.2%, at full load, cold unit
Line regulation max. 50mV 187-264Vac
Load regulation max. 150mV static value, 0A Æ 10A; see Fig. 6-1
Ripple and noise voltage max. 100mVpp 20Hz to 20MHz, 50Ohm
Output current nom. 10A at 24V, ambient temperature <55°C, see Fig. 6-1
nom. 6.25A at 24V, ambient temperature <70°C, see Fig. 6-1
nom. 8.6A at 28V, ambient temperature <55°C, see Fig. 6-1
nom. 5.4A at 28V, ambient temperature <70°C, see Fig. 6-1
Output power nom. 240W ambient temperature <55°C
nom. 150W ambient temperature <70°C
Overload behaviour continuous current see Fig. 6-1
Short-circuit current max. 16A*) load impedance 50mOhm
Output capacitance typ. 4 400μF 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 not

guaranteed value which can be achieved. The typical value is about 28.5V.

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

Output Voltage

28V

24

20

16

12

8

4
0

048

typ.

Adjustment

Range

Output Current

16A1062 12 14

Jan. 2016 / Rev. 1.5 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.

6/21

PIC240.241C

PIANO-Series

24V, 10A, S

7. H

OLD-UP TIME

Hold-up Time typ. 75ms at 24V, 5A, 230Vac, see Fig. 7-1
min. 59ms at 24V, 5A, 230Vac, see Fig. 7-1
typ. 33ms at 24V, 10A, 230Vac, see Fig. 7-1
min. 25ms at 24V, 10A, 230Vac, see Fig. 7-1

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

Hold-up Time

80ms

a) 24V 5A typ.
b) 24V 5A min.
c) 24V 10A typ.

70

d) 24V 10A min.

60
50
40
30
20
10

0

170 200 230 264Vac

Input Voltage

a

b

Input
Voltage

c
d

Output
Voltage

Zero Transition

Hold-up Time

INGLE PHASE INPUT

- 5%

8. DC-OK

RELAY CONTACT

This feature monitors the output voltage on the output terminals.

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

Fig. 8-1 DC-ok relay contact behavior

Output Voltage

21.4V

open

closed

Jan. 2016 / Rev. 1.5 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.

7/21

A

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

9. E

FFICIENCY AND POWER LOSSES

Efficiency typ. 91.4% at 24V, 10A, 230Vac
Average efficiency*) typ. 90.9% 25% at 2.5A, 25% at 5A, 25% at 7.5A. 25% at 10A
Power losses typ. 5.5W at 24V, 0A, 230Vac
typ. 11.0W at 24V, 5A, 230Vac
typ. 22.6W 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,

Efficiency

92%

91

90

89

88

87

86

typ.

Output Current

2

10A4786

953

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

Power Losses

24W

21
18

12

9
6
3
0

024 8910

Output Current

6157531

10. L

IFETIME EXPECTANCY AND

MTBF

Lifetime expectancy

*)

84 000h at 24V, 5A and 40°C, 230Vac
236 000h*) at 24V, 5A and 25°C, 230Vac
38 000h at 24V, 10A and 40°C, 230Vac
107 000h at 24V, 10A and 25°C, 230Vac

**)

MTBF

SN 29500, IEC 61709 791 000h at 24V, 10A and 40°C, 230Vac

1 588 000h at 24V, 10A and 25°C, 230Vac

**)

MTBF

MIL HDBK 217F 568 000h at 24V, 10A and 40°C, 230Vac;

Ground Benign GB40

765 000h at 24V, 10A and 25°C, 230Vac;

Ground Benign GB25

151 000h at 24V, 10A and 40°C, 230Vac;

Ground Fixed GF40

194 000h 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 the
capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years
(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.

**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a

device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.

The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means that

statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit
has been running for 50 000h or only for 100h.

Jan. 2016 / Rev. 1.5 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.

8/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

11. F

UNCTIONAL DIAGRAM

L

N

Input Fuse
&
Input Filter

Fig. 11-1 Functional diagram PIC240.241C

Output

Voltage

Regulator

Input
Rectifier
&
Inrush
Limiter

(NTC)

Output

Voltage

Protection

Over-

Power

Converter

Output

DC-ok
Relay

Filter

V

OUT

+
+

-

-

DC
ok

DC-ok
Contact

12. T

ERMINALS AND WIRING

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

Type

Input and output DC-OK-Signal

screw terminals push-in terminals
Solid wire max. 6mm2 max. 1.5mm2
Stranded wire max. 4mm2 max. 1.5mm2
American Wire Gauge AWG20-10 AWG28-16
Max. wire diameter 2.8mm (including ferrules) 1.6mm (including ferrules)
Wire stripping length 7mm / 0.28inch 7mm / 0.28inch
Screwdriver 3.5mm slotted or cross-head No 2 not required
Recommended tightening torque 1Nm, 9lb.in 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.

Jan. 2016 / Rev. 1.5 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.

9/21

PIC240.241C

PIANO-Series

13. F

RONT SIDE AND USER ELEMENTS

Fig. 13-1 Front side

24V, 10A, S

INGLE PHASE INPUT

A Input Terminals (screw terminals)
N, L Line 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

DC-OK LED (green)

D

On, when the output voltage is >18V

E

DC-OK Relay Contact (push-in terminals)

Description see chapter 8.

Jan. 2016 / Rev. 1.5 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.

10/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

14. EMC

The power supply is suitable for applications in industrial environment as well as in residential, commercial and light
industry environment. Restrictions apply on public mains (PFC), see chapter 1.

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-2.7GHz 20V/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 -

Surge voltage on DC-OK EN 61000-4-5 DC-OK signal Æ PE 1kV Criterion A
Conducted disturbance EN 61000-4-6 0.15-80MHz 20V Criterion A
Mains voltage dips EN 61000-4-11 0% of 200Vac

Voltage interruptions EN 61000-4-11 0% of 200Vac (=0V) 5000ms Criterion C
Voltage sags SEMI F47 0706 dips on the input voltage according to SEMI F47 standard
80% of 200Vac (160Vac)

Powerful transients VDE 0160 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

Radiated emission EN 55011, EN 55022 Class B fulfilled
Harmonic input current EN 61000-3-2 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.

*) tested with constant current loads, non pulsing
**) for information only, not mandatory for EN 61000-6-3

Switching frequency

**)

According generic standards: EN 61000-6-1 and EN 61000-6-2

8kV

air discharge

output lines
DC-OK signal (coupling clamp)

L Æ PE, N Æ PE

+ / - Æ PE

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

70% of 200Vac (140Vac)
50% of 200Vac (100Vac)

According generic standards: EN 61000-6-4
EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 limits for DC power port

75kHz to 120kHz Main converter, input voltage and output current dependent

8kV

4kV
2kV
2kV

2kV
4kV

500V
1kV

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

1000ms
500ms
200ms

according EN 61000-6-3 not
fulfilled

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

Criterion A
Criterion C
Criterion C

Jan. 2016 / Rev. 1.5 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.

11/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

15. E

NVIRONMENT

Operational temperature

*)

-10°C to +70°C (14°F to 158°F) reduce output power according Fig. 15-1
Storage temperature -40°C to +85°C (-40°F to 185°F) for storage and transportation
Output de-rating 6W/°C 55°C to 70°C (131°F to 158°F)
Humidity
Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g

Shock 30g 6ms, 20g 11ms

**)

5 to 95% r.h. IEC 60068-2-30

2 hours / axis

***)

***)

***)

IEC 60068-2-6

IEC 60068-2-27

3 bumps / direction, 18 bumps in total
Altitude 0 to 2000m (0 to 6 560ft) without any restrictions
2000 to 6000m (6 560 to 20 000ft) reduce output power or ambient temperature,

see Fig. 15-2

IEC 62103, EN 50178, overvoltage category II
Altitude de-rating 15W/1000m or 5°C/1000m > 2000m (6500ft), see Fig. 15-2
Over-voltage category III IEC 62103, EN 50178, altitudes up to 2000m
II altitudes from 2000m to 6000m
Degree of pollution 2 IEC 62103, EN 50178, not conductive
LABS compatibility The unit does not release any silicone or other LABS-critical substances and is suitable for

use in paint shops.

*) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below the

unit.

**) 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. Fig. 15-2 Output current vs. altitude

Allowable Output Current at 24V

10A

7.5A

6.3A

5.0A

2.5A

0

Ambient Temperature

-10 0 +20 +40

+55

+70°C

Allowed Output
Current at 24V

12A

10A

8A

6A

4A

.

A

.

a

T

.

b

m

<

5

B

2A

C

0

0 2000 4000

.

a

T

.

.

b

m

<

.

.

.

4

a

T

b

m

<

3

C
B

A

°

C

5

°

C

5

°

C

5

Altitude

6000m

Jan. 2016 / Rev. 1.5 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.

12/21

PIC240.241C

PIANO-Series

16. P

Output protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection typ. 31.5Vdc

Degree of protection IP 20 EN/IEC 60529

Over-temperature protection yes Output shut-down with automatic restart
Input transient protection MOV (Metal Oxide Varistor)
Internal input fuse included not user replaceable

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

17. S

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

ROTECTION FEATURES

AFETY FEATURES

In case of an internal power supply defect, a redundant

max. 34Vdc

circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.

Caution: For use in a controlled environment according
to CSA 22.2 No 107.1-01.

24V, 10A, S

INGLE PHASE INPUT

*)

Jan. 2016 / Rev. 1.5 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.

13/21

PIC240.241C

PIANO-Series

18. D

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 the
voltage with a slow ramp (2s up and 2s down). Connect all input-terminals together as well as all output poles before
conducting the test. When testing, set the cut-off current settings to the value in the table below.

Fig. 18-1 Dielectric strength

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

IELECTRIC STRENGTH

Input DC-ok

Earth, PE

connecting DC-OK pins and the output pins together when performing the test.

*)

L

N

AD

B

B

Output

C

+

-

Type test 60s 2500Vac 3000Vac 500Vac 500Vac

Factory test 5s 2500Vac 2500Vac 500Vac 500Vac

Field test 5s 2000Vac 2000Vac 500Vac 500Vac

Cut-off current setting > 10mA > 10mA > 15mA > 1mA

To fulfil 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 when unnoticed earth
faults occur.

24V, 10A, S

A B C D

INGLE PHASE INPUT

Jan. 2016 / Rev. 1.5 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.

14/21

Q.

PIC240.241C

PIANO-Series

19. A

EC Declaration of Conformity

IEC 60950-1

nd

2

UL 60950-1
2nd Edition

UL 508

Marine

PPROVALS

Edition

24V, 10A, S

INGLE PHASE INPUT

The CE mark indicates conformance with the

IND. CONT. E

- EMC directive and the

- Low-voltage directive (LVD)
CB Scheme,

Information Technology Equipment

Recognized for use as Information Technology Equipment,
Level 5; U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950-1);
E-File: E137006
Applicable for altitudes up to 2000m.

Listed for use as Industrial Control Equipment;
U.S.A. (UL 508) and Canada (C22.2 No. 107-1-01);
E-File: E198865

GL (Germanischer Lloyd) classified
Environmental category: C, EMC 2
Marine and offshore applications

20. R

RoHS Directive

REACH Directive

HS, REACH

O

AND OTHER FULFILLED STANDARDS

Directive 2011/65/EU of the European Parliament and the
Council of June 8
certain hazardous substances in electrical and electronic
equipment.

Directive 1907/2006/EU of the European Parliament and the
Council of June 1
Evaluation, Authorisation and Restriction of Chemicals
(REACH)

th

, 2011 on the restriction of the use of

st

, 2007 regarding the Registration,

Jan. 2016 / Rev. 1.5 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.

15/21

PIC240.241C

PIANO-Series

21. P

Width 49mm 1.93’’
Height 124mm 4.88’’
Depth 124mm 4.88’’

Weight 550g / 1.2lb
DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Plastic Material of Housing Flame retardant Polycarbonate (PC) - UL94-V0

Installation Clearances See chapter 2

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

HYSICAL DIMENSIONS AND WEIGHT

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

Vicat softening temperature specified with 149°C according to ASTM D1525

24V, 10A, S

INGLE PHASE INPUT

Jan. 2016 / Rev. 1.5 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.

16/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

22. A

22.1. UF20.241

CCESSORY

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 in
integrated electrolytic capacitors. In case of mains voltage fault, this energy is
released again in a regulated process. One buffer module can deliver 20A which can
also be used to support peak current demands.

The buffer unit does not require any control wiring. It can be added in parallel to
the load circuit at any given point. Buffer
units can be added in parallel to increase
the output ampacity or the hold-up time.

AC

DC

Power
Supply

Buffer

Unit(s)

Load

+

-

22.2. YR2.DIODE

REDUNDANCY MODULE

The YR2.DIODE is a dual redundancy module, which has two diodes with a common cathode included. It can be used

for various purposes. The most popular application is to configure highly reliable and
true redundant power supply systems.
Another interesting application is the
separation of sensitive loads from non­sensitive loads. This avoids the distortion
of the power quality for the sensitive
loads which can cause controller
failures.

See chapter 23.5 for instructions how to

d a redundant system.

buil

+ +

- -

24-28V
DC-OK

DC­OK

PIC240.241C

Power Supply

L N PE

+

-

+

IN 1

IN 2

YR2.Diode

Redundancy
Module

OUT

-

+

-

+ +

- -

24-28V
DC-OK

DC­OK

PIC240.241C

Power Supply

L N PE

Failure

Monitor

I I

L

N

PE

24V,10A

Load

Jan. 2016 / Rev. 1.5 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.

17/21

PIC240.241C

PIANO-Series

23. A

PPLICATION NOTES

23.1. P

The unit can deliver peak currents (up to several milliseconds) which are higher than the specified short term currents.
This helps to start current demanding loads. Solenoids, contactors and pneumatic modules often have a steady state

coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady-state
current and usually exceeds the nominal output current. The same situation applies when starting a capacitive load.

The peak current capability also ensures the safe operation of subsequent circuit breakers of load circuits. The load
branches are often individually protected with circuit breakers or fuses. In case of a short or an overload in one branch
circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. This avoids
voltage loss in adjacent circuits.

The extra current (peak current) is supplied by the power converter and the built-in large sized output capacitors of
the power supply. The capacitors get discharged during such an event, which causes a voltage dip on the output. The
following two examples show typical voltage dips:

Fig. 23-1 Peak load with 2x the nominal

24V

EAK CURRENT CAPABILITY

current for 50ms, typ.

Output
Voltage

Fig. 23-2 Peak load with 5x the nominal

24V

24V, 10A, S

current for 5ms, typ.

INGLE PHASE INPUT

50A

20A

0A

10ms/DIV

20A Peak load (resistive) for 50ms
Output voltage dips from 24V to 15.5V.

Peak current voltage dips typ. from 24V to 15.5V at 20A for 50ms, resistive load
typ. from 24V to 13V at 50A for 2ms, resistive load
typ. from 24V to 8V at 50A for 5ms, resistive load

23.2. B

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 6.

ACK-FEEDING LOADS

15.5V

Output
Current

0A

50A Peak load (resistive) for 5ms
Output voltage dips from 24V to 8V.

1ms/DIV

lectro Magnetic Force).

Output
Voltage

8V

Output
Current

Jan. 2016 / Rev. 1.5 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.

18/21

PIC240.241C

PIANO-Series

24V, 10A, S

INGLE PHASE INPUT

23.3. E

XTERNAL 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 10A B- or 6A C-Characteristic breaker should be used.

23.4. P

ARALLEL USE TO INCREASE OUTPUT POWER

Do not use the power supply in parallel to increase the output power.

23.5. P

ARALLEL USE FOR

Power supplies can be paralleled for redundancy to gain higher system

1+1 R

EDUNDANCY

Monitor

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.

Please note: This simple way to build a redundant system does not
cover failures such as an internal short circuit in the secondary side of

+ +

- -

24-28V
DC-OK

DC­OK

PIC240.241C

Power Supply

L N PE

+

-

IN 1

YR2.Diode

Redundancy
Module

OUT

+

+

IN 2

-

-

+ +

- -

24-28V
DC-OK

DC­OK

PIC240.241C

Power Supply

L N PE

the power supply. In such a case, the defect 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 redundancy module YR2.DIODE.

Recommendations for building redundant power systems:

I I

L

N

PE

24V,10A

Load

a) Monitor the individual power supply units. Therefore, use the DC-OK 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.

Failure

Jan. 2016 / Rev. 1.5 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.

19/21

PIC240.241C

PIANO-Series

23.6. S

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.

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

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

Keep an installation clearance of 15mm (left / right) between two power supplies and avoid installing the power
supplies on top of each other.

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

23.7. I

ERIES OPERATION

NDUCTIVE AND CAPACITIVE LOADS

24V, 10A, S

INGLE PHASE INPUT

Unit A

AC

Unit B

AC

DC

DC

+

-

+

-

+

Earth
(see notes)

Load

-

No limitations for inductive loads
No limitations for capacitive loads

23.8. C

Do not use the power supply to charge batteries.

HARGING OF BATTERIES

Jan. 2016 / Rev. 1.5 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.

20/21

PIC240.241C

PIANO-Series

23.9. O

The 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

23.10. U

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: Rittal Type IP66 Box PK 9519 100, plastic, 180x180x165mm

Input: 230Vac

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

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

PERATION ON TWO PHASES

+10%

.

SE IN A TIGHTLY SEALED ENCLOSURE

24V, 10A, S

L3

INGLE PHASE INPUT

L1

max.

Fuse

+10%

240V

L2

Power Supply

AC

internal

fuse

L

N

PE

DC

Jan. 2016 / Rev. 1.5 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.

21/21