PULS ML50.100, ML50.109 technology data

MiniLine

1. GENERAL DESCRIPTION

A compact size, light weight, simple mounting on
the DIN-rail and the quick connect spring-clamp
terminals are what makes the MiniLine power
supplies so easy to use and installs in seconds.

A rugged electrical and mechanical design as well as
a high immunity against electrical disturbances on
the mains provides reliable output power. This offers
superior protection for equipment which is
connected to the public mains network or is exposed
to a critical industrial environment.

The MiniLine series offers output voltages from 5 to
56Vdc and a power rating of up to 100W. A DC-OK
signal allows remote diagnostics.

The supplementary MiniLine decoupling diode
module MLY02.100 allows building of redundant
systems or to protect against back-feed voltages.

24V MiniLine

Related products

power

For other output voltages or
output power see catalog

Less

ML50.100

Screw

terminals

Conformal

coating

Parallel use

option

More

power

380-480V

input

ML50.111

ML50.109

ML50.101ML30.100

ML100.100

ML100.200

ML50.100, ML50.109

24V, 2.1A, SINGLE PHASE INPUT

POWER SUPPLY

■ AC 100-240V Wide Range Input

■ NEC Class 2 Compliant

■ Adjustable Output Voltage

■ Efficiency up to 89%

■ Compact Design, Width only 45mm

■ Full Output Power Between -10°C and +60°C

■ DC-OK Signal Included

■ Large International Approval Package

■ DIN-Rail Bracket for Wall or Panel Mount Included

■ 3 Year Warranty

2. SHORT-FORM DATA

Output voltage DC 24V
Adjustment range 24-28V
Output current 2.1–1.8A 24-28V

Output power 50W

Output ripple < 50mVpp 20Hz to 20MHz
Input voltage AC 100-240V Wide Range Input
Mains frequency 50-60Hz ±6%
AC Input current typ. 0.77 / 0.44A at 120 / 230Vac
Power factor typ. 0.56 / 0.52 at 120 / 230Vac
AC Inrush current 17 / 35A typ. peak value

at 120 / 230Vac

40°C and cold start
DC Input 85-375Vdc
Efficiency typ. 88.4 / 89.0% at 120 / 230Vac
Losses typ. 6.6 / 6.2W at 120 / 230Vac
Temperature range -10°C to +70°C operational
Derating 1.3W/°C +60 to +70°C
Hold-up time typ. 35 / 190ms at 120 / 230Vac
Dimensions 45x75x91mm WxHxD

3. ORDER NUMBERS

Power Supply

ML50.100
ML50.109

Accessory MLY02.100 Decoupling /

Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

Standard unit
Conformal coated unit

Redundancy module

4. MARKINGS

IND. CONT. EQ.

UL 508

NEC Class 2

&

Medical

approval

UL 60950-1

GL

Marine

Class I Div 2

EMC, LVD

1/20

ML50.100, ML50.109

24V, 2.1A, SINGLE PHASE INPUT

MiniLine

INDEX PAGE INDEX PAGE

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

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

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

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

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

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

7. DC-Input...............................................................4

8. Hold-up Time.......................................................5

9. DC-OK Output .....................................................5

10. Output .................................................................6

11. Efficiency and Power Losses................................7

12. Functional Diagram.............................................8

13. Reliability.............................................................8

14. Front Side and User Elements.............................9

15. Terminals and Wiring..........................................9

16. EMC....................................................................10

17. Environment......................................................11

18. Protection Features ...........................................11

19. Safety .................................................................12

20. Dielectric Strength ............................................12

21. Approvals.......................................................... 13

22. Fulfilled Standards............................................ 13

23. Used Substances ............................................... 13

24. Physical Dimensions and Weight..................... 14

25. Installation and Operation Instructions .......... 14

26. Accessory........................................................... 15

27. Application Notes............................................. 16

27.1. Peak Current Capability......................... 16

27.2. Back-feeding Loads................................ 16

27.3. Series Operation..................................... 17

27.4. Parallel Use to Increase Output Power . 17

27.5. Parallel Use for Redundancy.................. 17

27.6. Daisy Chaining of Outputs..................... 18

27.7. Charging of Batteries............................. 18

27.8. External Input Protection....................... 19

27.9. Inductive and Capacitive Loads ............. 19

27.10. Operation on Two Phases...................... 19

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

27.12. Mounting Orientations.......................... 20

INTENDED USE

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

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

TERMINOLOGY AND ABREVIATIONS

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

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

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

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

standard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery regardless whether it is charged (13.7V) or discharged
(10V). As long as not otherwise stated, AC 100V and AC 230V parameters are valid at 50Hz
and AC 120V parameters are valid at 60Hz mains frequency.

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

tolerances included.

DISCLAIMER

The information presented in this document is believed to be accurate and reliable and may change without notice.
The housing is patent by PULS (US patent No US D442,923S)

No part of this document may be reproduced or utilized in any form without permission in writing from the publisher.

Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

2/20

ML50.100, ML50.109

24V, 2.1A, SINGLE PHASE INPUT

MiniLine

5. AC-INPUT

AC input
AC input range
60-85Vac Full power for 200ms, no damage between 0 and 85Vac

Input frequency
Turn-on voltage typ. 65Vac Steady-state value, see Fig. 5-1
Shut-down voltage typ. 55Vac Steady-state value, see Fig. 5-1

AC 100V AC 120V AC 230V

Input current typ. 0.91A 0.77A 0.47A at 24V, 2.1A see Fig. 5-3
Power factor *) typ. 0.58 0.56 0.52 at 24V, 2.1A see Fig. 5-1
Crest factor **) typ. 3.05 3.26 3.91 at 24V, 2.1A
Start-up delay typ. 32ms 32ms 32ms See Fig. 5-2
Rise time typ. 33ms 33ms 48ms 0mF, 24V, 2.1A, see Fig. 5-2

Turn-on overshoot

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

P

OUT

full

power

for

200ms

Shut-down

60V 300Vac

input range

Turn-on

85V

Rated

nom. AC 100-240V Wide-range input, TN-, TT-, IT-Mains, see Fig. 5-1
85-264Vac Continuous operation

264-300Vac < 0.5s
nom. 50 – 60Hz ±6%

typ. 45ms 45ms 60ms 2mF, 24V, 2.1A, see Fig. 5-2
max. 400mV 400mV 400mV See Fig. 5-2

Intput
Voltage

Output
Voltage

- 5%

Start-up

delay

Rise

Time

Overshoot

264V

max.

500ms

V

IN

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

Input Current, typ.

1.0A

0.8

0.6

0.4

0.2

0

0.1

a) 100Vac
b) 120Vac
c) 230Vac

0.5 0.9

Output Current

1.3

1.7

2.1A

a
b

c

Power Factor, typ.

0.65

0.6

0.55

0.5

0.45

0.4

0.1

a) 100Vac
b) 120Vac
c) 230Vac

0.5 0.9

Output Current

1.3

1.7

Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

2.1A

a
b

c

3/20

ML50.100, ML50.109

24V, 2.1A, SINGLE PHASE INPUT

MiniLine

6. INPUT INRUSH CURRENT SURGE

A NTC limits the input inrush current after turn-on of the input voltage. The inrush current is input voltage and
ambient temperature dependent.

Inrush current max. 18A
typ. 14A
Inrush energy

typ. 0.3A2s 0.4A2s 1.5A2s 40°C ambient, cold start

Fig. 6-1 Input inrush current, typical behavior Fig. 6-2 Input inrush current, zoom into the first peak

Input Current

Input Voltage

AC 100V AC 120V AC 230V

23A

peak

17A

peak

48A

peak

35A

peak

40°C ambient, cold start

peak

40°C ambient, cold start

peak

Output Voltage

Input Current

Input: 230Vac
Output: 24V, 2.1A
Ambient: 40°C
Upper curve: Input current 20A / DIV
Middle curve: Input voltage 1000V / DIV
Lower curve: Output voltage 20V / DIV
Time scale: 20ms / DIV

Input: 230Vac
Output: 24V, 2.1A
Ambient: 40°C
Input current curve: 10A / DIV, 1ms / DIV
Ipeak 32.4A
The charging current into EMI suppression capacitors is
disregarded in the first microseconds after switch-on.

7. DC-INPUT

DC input nom. DC 110-290V -25%/+30%
DC input range min. 85-375Vdc Continuous operation
DC input current typ. 0.50A / 0.19A 110Vdc / 300Vdc at 24V and 2.1A
Turn-on voltage typ. 81Vdc Steady state value
Shut-down voltage typ. 58Vdc Steady state value

Fig. 7-1 Wiring for DC Input

Battery

Power Supply

+

Fuse

-

PE

L

N

AC

internal

fused

DC

+

Load

-

Instructions for DC use:

a) Use a battery or similar DC source.
b) Connect +pole to L and – pole to N.
c) Connect the PE terminal to a earth wire or

to the machine ground.

d) In case the – pole of the battery is not

connected to earth, use an appropriate fuse
to protect the N terminal.

Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

4/20

A

ML50.100, ML50.109

24V, 2.1A, SINGLE PHASE INPUT

MiniLine

8. HOLD-UP TIME

AC 100V AC 120V AC 230V

Hold-up Time typ. 54ms 82ms 360ms 1.05A, 24V, see
typ. 26ms 40ms 180ms 2.1A, 24V, see Fig. 8-1

Fig. 8-1 Hold-up time vs. input voltage Fig. 8-2 Shut-down behavior, definitions

Hold-up Time

120ms

100

80

60

40

20

0

85 120 155 190 230Vac

a b c d

a) 24V 1.05A typ.
b) 24V 1.05Amin.
c) 24V 2.1A typ.
d) 24V 2.1A min.

Input Voltage

Intput
Voltage

Output
Voltage

Hold-up Time

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

Fig. 8-1

Zero Transition

- 5%

9. DC-OK OUTPUT

This feature monitors the output voltage, which is present on the output terminals.
The signal is a source output which can feed loads up to 30mA. Loads can be a 24V relay (Rcoil < 700Ohm), a LED or

the input of a PLC system. The relays operates or the LED is on if output voltage exceeds the threshold level. A free­wheeling diode (necessary when the load is a relay) is already included in the power supply.

Threshold value 20V +/-4%
Output current min. 30mA For typical values see
Output voltage min Vout – 1V

at 30mA

The open collector is internally linked to the positive output pole. The
DC-OK voltage is approximately the output voltage if the output voltage
is higher than the threshold level.

Fig. 9-1 DC-ok wiring diagram

Test Setup

Relay

LED

+ +

DC-ok

24-28V

MiniLi ne

- -

N

DC

ok

L

ML50

Fig. 9-2

Fig. 9-2 Output characteristic DC-OK signal

A

DC-OK Voltage

28V

24

20

16

12

8

4
0

01020

+

+

-

-

DC
OK

Load

V

DC-OK Current

25155 30 35

40m

Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

5/20

A

ML50.100, ML50.109

24V, 2.1A, SINGLE PHASE INPUT

MiniLine

10. OUTPUT

Output voltage
Adjustment range
max. 30V At clockwise end position of potentiometer
Factory setting
Line regulation
Load regulation max. 100mV Static value, 0A Æ 2.1A Æ 0A
Ripple and noise voltage
Output capacitance typ. 1600µF
Output current nom. 2.1A At 24V, see Fig. 10-1
nom. 1.8A
Output power nom. 50W
Short-circuit current min. 3.1A Load impedance 400mOhm, see Fig. 10-1
max. 5A Load impedance 400mOhm, see Fig. 10-1

Fig. 10-1 Output voltage vs. output current,

230Vac, typ.

nom. 24V
min. 24-28V Guaranteed

24.5V

±0.2%, at full load, cold unit

max. 10mV 85 to 264Vac

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

At 28V, see

Fig. 10-1

Output Voltage

28V

24

20

16

12

8

4
0

012

Output Current

Adjustment

Range

2.51.50.5 33.5

4

Peak current capability (up to several ms)

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

The extra current is supplied by the output capacitors inside the power supply. During this event, the capacitors will
be discharged and cause a voltage dip on the output. Detailed curves can be found in chapter 27.1.

Peak current voltage dips
typ. from 24V to 15V

typ. from 24V to 16V at 4.2A for 50ms, resistive load

at 10.5A for 2ms, resistive load

typ. from 24V to 10.5V

at 10.5A for 5ms, resistive load

Mar. 2007 / Rev. 1.0 DS-ML50.100-EN
All parameters are specified at 24V, 2.1A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

6/20