MiniLine
1. GENERAL DESCRIPTION
A compact size, light weight, simple mounting onto
the DIN-rail and the utilization of only quality
components are what makes the MiniLine power
supplies so easy to use and install within 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 from 15W to 100W.
The supplementary MiniLine decoupling diode
module MLY02.100 allows building of redundant
systems or to protect against back-feed voltages.
ML15
Related products
24V Output
ML15.241
5V
Output
12V
Output
ML15.051
More
Power
ML15.121
ML30.100
ML15.121
12V, 1.3A, SINGLE PHASE INPUT
POWER SUPPLY
■ 100-240V Wide Range Input
■ NEC Class 2 Compliant
■ Adjustable Output Voltage
■ Efficiency up to 83.6%
■ Compact Design, Width only 22.5mm
■ Full Output Power Between -10°C and +60°C
■ Large International Approval Package
■ 3 Year Warranty
2. SHORT-FORM DATA
Output voltage DC 12V
Adjustment range 12-15V
Output current
Output power 15W
Output ripple < 75mVpp 20Hz to 20MHz
Input voltage AC 100-240V Wide Range Input
Mains frequency 50-60Hz ±6%
AC Input current typ. 0.28 / 0.17A At 120 / 230Vac
Power factor typ. 0.51 / 0.44 At 120 / 230Vac
AC Inrush current 16 / 31A Typ. peak value
DC Input 85-375Vdc
Efficiency typ. 83.0 / 83.6% At 120 / 230Vac
Losses typ. 3.2 / 3.1W At 120 / 230Vac
Temperature range -10°C to +70°C Operational
Derating 0.4W/°C +60 to +70°C
Hold-up time typ. 46 / 191ms At 120 / 230Vac
Dimensions 22.5x75x91mm WxHxD
1.3–1.0A
12-15V
at 120 / 230Vac
40°C and cold start
3. ORDER NUMBERS
Power supply
Accessory MLY02.100 Decoupling /
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
ML15.121
Standard unit
Redundancy module
www.pulspower.com Phone +49 89 9278 0 Germany
4. MARKINGS
LISTED
IND. CONT. EQ.
UL 508
CUS
182790
18WM
GL
Class I Div 2
EMC, LVD
R
UL 60950-1
Marine
1/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
INDEX PAGE INDEX PAGE
1.
General Description ............................................1
2. Short-form Data ..................................................1
3. Order Numbers....................................................1
4. Markings..............................................................1
5. AC-Input...............................................................3
6. Input Inrush Current Surge.................................4
7. Hold-up Time.......................................................4
8. DC-Input...............................................................5
9. Output .................................................................6
10. Efficiency and Power Losses................................7
11. Functional Diagram.............................................8
12. Reliability.............................................................8
13. Front Side and User Elements.............................9
14. Terminals and Wiring..........................................9
15. EMC....................................................................10
16. Environment......................................................11
17. Protection Features ...........................................11
18. Safety .................................................................12
19. Dielectric Strength ............................................12
20. Approvals.......................................................... 13
21. Fulfilled Standards............................................ 13
22. Used Substances ............................................... 13
23. Physical Dimensions and Weight..................... 14
24. Installation and Operation Instructions .......... 14
25. Application Notes............................................. 15
25.1. Peak Current Capability......................... 15
25.2. Back-feeding Loads................................ 15
25.3. Inductive and Capacitive Loads ............. 15
25.4. Series Operation..................................... 16
25.5. Parallel Use to Increase Output Power . 16
25.6. Parallel Use for Redundancy.................. 17
25.7. Charging of Batteries............................. 17
25.8. External Input Protection....................... 17
25.9. Functional Earth Terminal ..................... 18
25.10. Operation on Two Phases...................... 18
25.11. Use in a Tightly Sealed Enclosure .......... 19
25.12. Mounting Orientations.......................... 20
INTENDED USE
The power supply shall only be installed and put into operation by qualified personnel.
This power supply is designed for installation in an enclosure and is intended for the general use, such as in industrial
control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains and nuclear
equipment, where malfunctioning of the power supply may cause severe personal injury or threaten human life.
TERMINOLOGY AND ABREVIATIONS
PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .
Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.
T.b.d. To be defined, value or description will follow later.
AC 230V A figure displayed with the AC or DC before the value represents a nominal voltage with
standard tolerances (usually ±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.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
2/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
5. AC-INPUT
AC input
AC input range
264-300Vac < 0.5s
Input frequency nom. 50 – 60Hz ±6%
Turn-on voltage typ. 59Vac Steady-state value, see Fig. 5-1
Shut-down voltage typ. 54Vac Steady-state value, see Fig. 5-1
AC 100V AC 120V AC 230V
Input current (rms) typ. 0.34A 0.28A 0.17A At 12V, 1.3A see Fig. 5-3
Power factor *) typ. 0.52 0.51 0.44 At 12V, 1.3A see Fig. 5-1
Crest factor **) typ. 3.45 3.53 3.94 At 12V, 1.3A
Start-up delay typ. 780ms 780ms 780ms See Fig. 5-2
Rise time typ. 12ms 12ms 12ms At 12V, 1.3A, 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
Rated
input range
nom. AC 100-240V Wide-range input, TN-, TT-, IT-Mains, see Fig. 5-1
85-264Vac Continuous operation
max. 100mV 100mV 100mV See Fig. 5-2
max.
500ms
Intput
Voltage
59V
a) 100Vac
b) 120Vac
c) 230Vac
0.2
0.4
Turn-on
85V
Output Current
0.6
V
IN
a
b
c
0.80
1.0
1.2
1.4A
Shut-down
54V 300Vac264V
Fig. 5-3 Input current vs. output load Fig. 5-4 Power Factor vs. output load
Input Current, typ.
0.4A
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0
Output
Voltage
Power Factor, typ.
0.55
0.50
0.45
0.40
0.35
0.30
0.2 0.4 0.6 1.0
Start-up
delay
a) 100Vac
b) 120Vac
c) 230Vac
- 5%
Rise
Time
Output Current
0.8 1.2
a
b
c
1.4A
Overshoot
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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3/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
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. 13A
typ. 11A
Inrush energy
typ. 0.1A2s 0.1A2s 0.4A2s 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
AC 100V AC 120V AC 230V
16A
peak
13A
peak
31A
peak
26A
peak
40°C ambient, cold start
peak
40°C ambient, cold start
peak
Input Current
Input Voltage
Input: 230Vac
Output: 12V, 1.3A
Ambient: 25°C
Upper curve: Input current 5A / DIV
Lower curve: Input voltage 500V / DIV
Time scale: 10ms / DIV
Input: 230Vac
Output: 12V, 1.3A
Ambient: 25°C
Input current curve: 5A / DIV, 500µs / DIV
Ipeak 23A
The charging current into EMI suppression capacitors is
disregarded in the first microseconds after switch-on.
7. HOLD-UP TIME
AC 100V AC 120V AC 230V
Hold-up Time typ. 62ms 95.5ms 365ms 12V, 0.65A, see
typ. 30ms 46ms 191ms 12V, 1.3A see Fig. 7-1
Fig. 7-1 Hold-up time vs. input voltage Fig. 7-2 Shut-down behavior, definitions
Hold-up Time
150ms
125
100
75
50
25
0
85 120 155 190 230Vac
a b c d
a) 12V 0.65A typ.
b) 12V 0.65Amin.
c) 12V 1.3A typ.
d) 12V 1.3A 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. 7-1
Zero Transition
- 5%
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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4/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
8. DC-INPUT
DC input nom. DC 110-290V -25%/+30%
DC input range min. 85-375Vdc Continuous operation
DC input current typ. 0.16A / 0.057A 110Vdc / 300Vdc, at a load of 12V and 1.3A
Turn-on voltage typ. 80Vdc Steady state value
Shut-down voltage typ. 60Vdc Steady state value
Instructions for DC use:
a) Use a battery or similar DC source.
b) Connect +pole to L and – pole to N.
c) In case the – pole of the battery is not connected to earth, use an appropriate fuse to protect the N terminal.
Fig. 8-1 Wiring for DC Input
Battery
+
-
Fuse
Power Supply
AC
internal
fused
L
N
FE
DC
+
Load
-
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
5/20
A
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
9. OUTPUT
Output voltage
Adjustment range
max. 16V At clockwise end position of potentiometer
Factory setting
Line regulation
Load regulation max.
Ripple and noise voltage
Output capacitance typ.
Output current nom. 1.3A At 12V, see Fig. 9-1 for typical figures
nom. 1.0A
Output power nom. 15W
Short-circuit current min. Hiccup mode See Fig. 9-2
max. Hiccup mode See Fig. 9-2
Fig. 9-1 Output voltage vs. output current, typ.
nom. 12V
min. 12-15V Guaranteed
max.
max.
12.0V
10mV
100mV
75mVpp
1650µF
±0.2%, at full load, cold unit
85 to 264Vac
Static value, 0A Æ 1.3A Æ 0A
20Hz to 20MHz, 50Ohm
At 15V, see Fig. 9-1 for typical figures
Fig. 9-2 Hiccup mode, Output current at
shorted output, 230V typ.
Output Voltage
16V
12
10
8
6
4
2
0
Continuous
Hiccup Mode
Output Current
0
Adjustment
Range
1.00.60.2 1.40.80.4 1.2141.8
2.0
Output
Current
1.7A
60ms
0
240ms 240ms
t
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 25.1
Peak current voltage dips typ. from 12V to 7.8V At 2.6A for 50ms, resistive load
typ. from 12V to 5.2V
typ. from 12V to 2.0V
At 6.5A for 2ms, resistive load
At 6.5A for 5ms, resistive load
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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A
A
c
c
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
10. EFFICIENCY AND POWER LOSSES
AC 100V AC 120V AC 230V
Efficiency typ. 82.4% 83% 83.6% 1.3A, 12V (full load)
Power losses typ. 0.5W 0.5W 0.8W At no load
typ. 1.55W 1.55W 1.75W 0.65A, 12V (half load)
typ. 3.4W 3.2W 3.1W 1.3A, 12V (full load)
Fig. 10-1 Efficiency vs. output current at 12V Fig. 10-2 Losses vs. output current at 12V
Efficiency
84%
83
82
81
80
79
78
77
76
0.2
Output Current
0.6 0.8 1.2
0.4 1.0
a) 100Vac
b) 120Vac
c) 230Vac
c
b
a
1.4
Power Losses
4W
a) 100Vac
3.5
b) 120Vac
c) 230Vac
3.0
2.5
2.0
1.5
1.0
0.5
0
00.2 1.4
0.4 0.6 0.8
Fig. 10-3 Efficiency vs. input voltage
Efficiency
85%
84
83
82
81
80
79
85 120 155 190 225 260
at 12V and 1.3A
Input Voltage
Va
Fig. 10-4 Losses vs. input voltage
Power Losses
4W
3.75
3.50
3.25
3.00
2.75
85 120 155 190 225 260
at 12V and 1.3A
Input Voltage
Output Current
1.0 1.2
a
b
c
Va
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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7/20
MiniLine
11. FUNCTIONAL DIAGRAM
Fig. 11-1 Functional diagram
L
N
Input Fuse
&
Input Filter
Input
Rectifier
&
Inrush
Limiter
Converter
Output Over-
Voltage
Protection
Power
12. RELIABILITY
ML15.121
12V, 1.3A, SINGLE PHASE INPUT
DC
on
Output
Filter
Output
Voltage
Regulator
+
-
-
V
OUT
These units are extremely reliable and use only the highest quality materials. The number of critical components such
as electrolytic capacitors has been reduced.
AC 100V AC 120V AC 230V
Lifetime expectancy min. 123 000h 126 000h 125 000h 40°C, 12V, 1.3A
min. > 15 years > 15 years > 15 years 40°C, 12V, 0.65A
min. > 15 years > 15 years > 15 years 25°C, 12V, 1.3A
MTBF SN 29500, IEC 61709 3 435 000h 3 723 000h 3 811 000h 40°C, 12V, 1.3A
5 633 000h 6 106 000h 6 205 000h 25°C, 12V, 1.3A
MTBF MIL HDBK 217F 1 482 000h 1 534 000h 1 451 000h 40°C, 12V, 1.3A, Ground Benign GB40
1 986 000h 2 056 000h 1 944 000h 25°C, 12V, 1.3A, Ground Benign GB25
The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors.
Lifetime expectancy is specified in operational hours. Lifetime expectancy is calculated according to the capacitor’s
manufacturer specification. The prediction model allows a calculation of up to 15 years from date of shipment.
MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates
reliability of a device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily
represent the life of a product.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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8/20
MiniLine
13. FRONT SIDE AND USER ELEMENTS
Fig. 13-1 Front side
A
Output Terminals
Screw terminals
Dual terminals for the negative pole allows an easy earthing of the output
voltage
+ Positive output
- Negative (return) output
B
Input Terminals
Screw terminals
L Neutral input
N Line (hot) input
EMI ground
Ground this terminal to minimize high-frequency emissions.
For safety reasons, connecting to ground is not required.
ML15.121
12V, 1.3A, SINGLE PHASE INPUT
C
DC-ON LED (green)
On when the voltage is > 10.5V
D
Output voltage potentiometer
Turn to set the output voltage. Factory setting is 12.0V.
14. TERMINALS AND WIRING
All terminals are easy to access when mounted on the panel. Input and output terminals are separated from each
other (input below, output above) to help in error-free wiring.
Type Screw terminals
Solid wire 0.5-6mm
Stranded wire 0.5-4mm2
American wire gauge 20-10 AWG
Ferrules Allowed, but not required
Recommended tightening torque 1Nm, 9lb.in
Screwdriver 3.5mm slotted or Pozidrive No 2
Wire stripping length 7mm / 0.275inch
Instructions:
a) Use appropriate copper cables that are designed for an operating temperatures of 60°C (for ambient up to 45°C)
and 75°C (for ambient up to 60°C), minimum.
b) Ferrules are allowed, but not required.
c) Follow local and national installation codes and regulations!
d) Ensure that all strands of a stranded wire enter the terminal connection!
e) In order to fulfill GL requirements, unused terminal spaces must be closed.
2
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
9/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
15. EMC
The CE mark indicates conformance with EMC directive 89/336/EC, 93/68/EC and 2004/108/EC and the low-voltage
directive (LVD) 73/23/EC, 93/68/EC, 2006/95/EC. A detailed EMC Report is available on request.
All results and investigation were performed with functional earth wire.
EMC Immunity
Electrostatic discharge EN 61000-4-2 Contact discharge
Electromagnetic RF field EN 61000-4-3 80MHz-2.7GHz 10V/m Criterion A
Fast transients (Burst) EN 61000-4-4 Input lines
Surge voltage on input EN 61000-4-5 L Æ N
Surge voltage on output EN 61000-4-5 + Æ -
Conducted disturbance EN 61000-4-6 0,15-80MHz 10V Criterion A
Mains voltage dips EN 61000-4-11 0% of 100Vac
Voltage interruptions EN 61000-4-11 0Vac, 5000ms Criterion C
Input voltage swells PULS internal standard 300Vac, 500ms Criterion A
Powerful transients VDE 0160 Over entire load
Criterions:
A: Power supply shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible. Power supply might shut-down and restarts by itself. No damages or hazards to the power
supply will occur.
EMC Emission
Conducted emission EN 55011, EN 55022, FCC Part 15, CISPR 11, CISPR 22 Class B, input lines
EN 55022 Class B, output lines
Radiated emission EN 55011, EN 55022 Class B
Harmonic input current EN 61000-3-2 Not applicable
Voltage fluctuations, flicker EN 61000-3-3 Fulfilled
This device complies with FCC Part 15 rules.
Operation is subjected to the 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.
Switching frequency
EN 61000-6-2, EN 61000-6-1
Air discharge
Output lines
N / L Æ PE
+ / - Æ PE
40% of 100Vac
70% of 100Vac
0% of 200Vac
40% of 200Vac
70% of 200Vac
range
EN 61000-6-3, EN 61000-6-4 Generic standards
constant, typ. 65kHz
Generic standards
8kV
8kV
4kV
2kV
2kV
4kV
500V
500V
0Vac, 20ms
40Vac, 200ms
70Vac, 500ms
0Vac, 20ms
80Vac, 200ms
140Vac, 500ms
750V, 1.3ms Criterion A
(below 75W input power)
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion C
Criterion A
Criterion A
Criterion A
Criterion A
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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10/20
C
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
16. ENVIRONMENT
Operational temperature -10°C to +70°C (14°F to 158°F) Reduce output power acc. to Fig. 16-1
Output de-rating 0.4W/°C 60-70°C (140°F to 158°F), see Fig. 16-1
Storage temperature -40 to +85°C (-40°F to 185°F) Storage and transportation
Humidity 5 to 95% r.H. IEC 60068-2-30
Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
Shock 15g 6ms, 10g 11ms
2 hours / axis
3 bumps / direction, 18 bumps in total
Altitude 0 to 6000m (0 to 20000ft) Reduce output power or ambient
Output de-rating (for altitude) 1W/1000m or 5°C/1000m Above 2000m (6500ft), see Fig. 16-2
Over-voltage category III EN 50178, IEC 62103, up to 2000m
II Altitudes from 2000m to 6000m
Degree of pollution 2 EN 50178, IEC 62103, non conductive
Fig. 16-1 Output power vs. ambient temperature Fig. 16-2 Output power vs. altitude
Allowable
Output Power
15W
12.5
10.0
7.5
5.0
2.5
0
Ambient Temperature
-10 0 20 40
60
70°
Allowable
Output Power
15W
12.5
10.0
7.5
5.0
2.5
0
0 2000 4000
The ambient temperature is defined 2cm below the unit.
Do not energize while condensation is present
IEC 60068-2-6
IEC 60068-2-27
temperature above 2000m sea level.
C
B
A
.
A
.
.
a
T
m
b
<
6
C
°
B
.
.
.
T
C
.
.
.
T
0
a
b
m
5
<
C
°
0
a
b
m
4
<
C
°
0
Altitude
6000m
17. PROTECTION FEATURES
Output protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection Typ. 21.5V, max. 25V In case of an internal power supply fault, a redundant
circuit limits the maximum output voltage. In such a
case, the output shuts down and stays down until the
input voltage is turned off and on again
Output over-current protection Electronically limited See Fig. 9-1
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 2.5mm in diameter E.g. screws, small parts
Over-temperature protection Not included
Input transient protection MOV Metal Oxide Varistor
Internal input fuse T3.15A H.B.C. Not user replaceable
Note: In case of a over-voltage, overload, no-load or short-circuit event, an audible noise may be heard.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
18. SAFETY
Input / output separation SELV IEC/EN 60950-1
PELV EN 60204-1, EN 50178, IEC 60364-4-41, IEC 62103
double or reinforced insulation
Class of protection II
Isolation resistance > 5MOhm Input to output, 500Vdc
Touch current (leakage current)
typ. 0.16mA1) / 6µA2)
typ. 0.25mA1) / 7µA2)
typ. 0.38mA
< 0.20mA
< 0.30mA
< 0.53mA
1)
/ 10µA2)
1)
/ 7µA2)
1)
/ 8µA2)
1)
/ 12µA2)
1) Functional earth terminal connected to Protective earth
2) Functional earth terminal not connected
100Vac, 50Hz, TN mains
120Vac, 60Hz, TN mains
230Vac, 50Hz, TN mains
110Vac, 50Hz, TN mains
132Vac, 60Hz, TN mains
264Vac, 50Hz, TN mains
19. DIELECTRIC STRENGTH
Fig. 19-1 Dielectric strength
Input
L
N
A
EMI Ground
B
C
Output
+
-
The output voltage is floating and has no ohmic connection to ground.
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, it is recommended that either the + pole, the – pole
or any other part of the output circuit should 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 an unnoticed earth faults occur.
A B C
Type test 60s 2500Vac 3000Vac 500Vac
Factory test 5s 2500Vac 2500Vac 500Vac
Field test 5s 2000Vac 2000Vac 500Vac
Type tests and factory tests:
Conducted by the manufacturer. Do not repeat test in field!
Rules for field test:
Use appropriate test equipment which applies the voltage
with a slow ramp! Connect L and N together as well as all
output poles.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
12/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
20. APPROVALS
IEC 60950-1
IECEE
CB SCHEME
UL 508
UL 60950-1
NEC Class 2
Class I Div 2
The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations. Substitution of components
CSA
Marine
may impair suitability for Class I Division 2 environment. Do not disconnect equipment unless power has
been switched off. Wiring must be in accordance with Class I, Division 2 wiring methods of the National
Electrical Code, NFPA 70, and in accordance with other local or national codes.
18WM
LISTED
IND. CONT. EQ.
R
CUS
182790
GL
ABS
CB Scheme,
Information Technology Equipment
LISTED E198865
Industrial Control Equipment
RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-1) and Canada
(C22.2 No. 60950). Information Technology Equipment, Level 3
According to NEC (National Electrical Code) Article 725-41 (4).
Listed as Limited Power Source (LPS) in the UL 60950-1 UL report.
RECOGNIZED E246877
Hazardous Location Class I Div 2 T4 Groups A,B,C and D
ANSI/ISA-12.12.01 (UL 1604)
CSA approval for Canada
CAN/CSA C22.2 No 107-1; CAN/ CSA 60950-1-03; UL60950-1
GL (Germanischer Lloyd) classified and ABS (American Bureau for Shipping) PDA
for marine and offshore applications. Environmental category: C, EMC2
21. FULFILLED STANDARDS
EN 61558-2-17 Safety of Power Transformers
EN/IEC 60204-1 Safety of Electrical Equipment of Machines
EN/IEC 61131-2 Programmable Controllers
EN 50178, IEC 62103 Electronic Equipment in Power Installations
22. USED SUBSTANCES
Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.
The unit conforms to the RoHS directive 2002/96/EC
Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.
The materials used in our production process do not include the following toxic chemicals:
Polychlorinated Biphenyl (PCB), Pentachlorophenol (PCP), Polychlorinated naphthalene (PCN), Polybrominated
Biphenyl (PBB), Polybrominated Biphenyl Oxide (PBO), Polybrominated Diphenyl Ether (PBDE), Polychlorinated
Diphenyl Ether (PCDE), Polybrominated Diphenyl Oxide (PBDO), Cadmium, Asbestos, Mercury, Silica
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
13/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
23. PHYSICAL DIMENSIONS AND WEIGHT
Weight 175g / 0.39lb
DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
The DIN-rail height must be added to the depth (91mm) to calculate the total required installation depth.
Electronic files with mechanical data can be downloaded at www.pulspower.com
Fig. 23-1 Front view Fig. 23-2 Side view
24. INSTALLATION AND OPERATION INSTRUCTIONS
Mounting:
Output terminal must be located on top and input terminal on the bottom. For other orientations see chapter 25.12.
An appropriate electrical and fire end-product enclosure should be considered in the end use application.
Cooling:
Convection cooled, no forced cooling required. Do not cover ventilation grill (e.g. cable conduits) by more than 30%!
Installation clearances:
25mm on top and bottom.
Risk of electrical shock, fire, personal injury or death!
Turn power off before working on the power supply. Protect against inadvertent re-powering.
Make sure the wiring is correct by following all local and national codes.
Do not open, modify or repair the unit.
Use caution to prevent any foreign objects from entering into the housing.
Do not use in wet locations or in areas where moisture or condensation can be expected.
Service parts:
The unit does not contain any service parts. The tripping of an internal fuse is caused by an internal fault. If damage
or malfunctioning should occur during operation, immediately turn power off and send unit to the factory for
inspection!
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
14/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
25. APPLICATION NOTES
25.1. PEAK CURRENT CAPABILITY
Solenoids, contactors and pneumatic modules often have a steady state (sealed) 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.
Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch
circuit, the protective device (fuse, circuit breaker) needs a certain amount of over-current to trip or to blow. The
peak current capability ensures the safe operation of subsequent circuit breakers.
Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the
power supply can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The following
two examples show typical voltage dips:
Fig. 25-1 Peak load 2.6A for 50ms, typ. Fig. 25-2 Peak load 6.5A for 5ms, typ.
12V
Output
Voltage
12V
7.8V
2.6A
0A
10ms/DIV
Peak load 2.6A (resistive) for 50ms
Output voltage dips from 12V to 7.8V.
Output
Current
6.5A
0A
1ms/DIV
Peak load 3.15A (resistive) for 5ms
Output voltage dips from 12V to 2V.
Output
Voltage
2V
Output
Current
25.2. BACK-FEEDING LOADS
Loads such as decelerating motors and inductors can feed voltage back to the power supply. This feature is also called
return voltage immunity or resistance against Back- E.M.F. (E
The maximum allowed feed back voltage is 25Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 9.
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. However, please note that the output voltage can
dip to zero for approximatelly 200ms if the back-feed voltage is removed.
lectro Magnetic Force).
25.3. INDUCTIVE AND CAPACITIVE LOADS
The unit is designed to supply unlimited inductive loads. The max. capacitive load depend on the steady state output
current. At 1.3A output current, the output capacity should not be larger than 1000µF at 0.65A output not larger
than 2500µF. In case of larger capacitors, the unit can show start-up attempts or start-up problems.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
15/20
MiniLine
25.4. SERIES OPERATION
The power supply can be put in series to increase the output voltage.
Fig. 25-3 Schematic for series operation
Unit A
AC
Unit B
AC
DC
DC
+
-
+
-
+
Load
-
Earth
Instructions for use in series:
a) It is possible to connect as many units in series as needed,
providing the sum of the output voltage does not exceed
150Vdc.
b) Voltages with a potential above 60Vdc are not SELV any
more and can be dangerous. Such voltages must be installed
with a protection against touching.
c) For serial operation use power supplies of the same type.
d) Earthing of the output is required when the sum of the
output voltage is above 60Vdc.
Note: Avoid return voltage (e.g. from a decelerating motor or
battery) which is applied to the output terminals.
ML15.121
12V, 1.3A, SINGLE PHASE INPUT
25.5. PARALLEL USE TO INCREASE OUTPUT POWER
Several power supplies can be paralleled to increase the output power. The ML15.121 has no feature included which
balances the load current between the power supplies. Usually the power supply with the higher adjusted output
voltage draws current until it goes into current limitation. This means no harm to this power supply as long as the
ambient temperature stays below 50°C.
Fig. 25-4 Schematic for parallel operation
Unit A
AC
AC
Unit B
DC
DC
+
+
Load
+
-
-
Instructions for parallel use:
a) Use only power supplies from the same series (ML-Series).
b) Adjust the output voltages of all power supplies to
approximately the same value (±100mV).
c) A fuse (or diode) on the output is only required if more than
three units are connected in parallel.
d) Ensure that the ambient temperature of the power supply
does not exceed 50°C.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
16/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
25.6. PARALLEL USE FOR REDUNDANCY
Power supplies can be paralleled for redundancy to gain a higher system reliability. 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
MiniLine 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. Redundant systems for a higher power
demand are usually built in a N+1 method. E.g. Five power supplies, each rated for 1.3A are paralleled to build a 5A
redundant system. If one unit fails, the 5A can still be drawn.
Please note: This simple way to build a redundant system has two major disadvantages:
- The faulty power supply can not be recognized. The green LED will still be on since it is reverse-powered from
the other power supply.
- It does not cover failures such as an internal short circuit in the secondary side of the power supply. In such a
situation the defective unit becomes a load for the other power supplies and the output voltage can not be
maintained any more.
This above conditions can be avoided by utilizing decoupling diodes which are included in the decoupling module
MLY02.100.
Other recommendations for building redundant power systems:
a) Use separate input fuses for each power supply.
b) Set the output voltage of the power supplies approx. 1V higher to compensate for the voltage drop.
c) When possible, connect each power supply to different phases of the mains network.
25.7. CHARGING OF BATTERIES
The power supply can be used for float-charging of lead-acid or maintenance free 12V VRLA batteries.
Instructions for charging batteries:
a) Ensure that the ambient temperature of the power supply does not exceed 50°C.
b) Set the output voltage on a disconnected load, very precisely to the end-of-charge voltage according to the
expected battery temperature.
End-of-charge voltage 13.9V 13.75V 13.6V 13.4V
Battery temperature 10°C 20°C 30°C 40°C
c) Use a 2A or 3A circuit breaker (or blocking diode ) between the power supply and the battery.
d) Ensure that the output current of the power supply is below the allowed charging current of the battery.
e) Use only matched batteries when putting 6V types in series.
f) The return current to the power supply is typ. 12mA at 12.5Vdc when the power supply is switched off (except in
case a blocking diode is utilized).
25.8. EXTERNAL INPUT PROTECTION
The unit is tested and approved for branch circuits up to 15A (UL) or 16A (IEC). External protection is only required if
the supplying branch has an ampacity greater than this. In some countries local regulations might apply so check local
codes and requirements.
If an external protective device is utilized, a minimum value is required to avoid undesired tripping of the fuse.
B-Characteristic C-Characteristic
Ampacity max.
min.
15A (UL), 16A (IEC) 15A (UL), 16A (IEC)
10A 6A
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
17/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
25.9. FUNCTIONAL EARTH TERMINAL
From a safety standpoint, the unit is designed according to the requirements for Protection Class 2 which does not
require an earth connection. However, connecting the Functional Earth terminal can be beneficial to gain a high EMI
immunity.
Symmetrical spikes or fast transients on the input side can be conducted directly to earth by the built-in filter
capacitors. The magnitude of such spikes or fast transients on the output side caused by the input are much smaller
compared to not connecting the FE terminal to ground.
Therefore, we recommend to connect the FE terminal too ground.
Fig. 25-5 Functional earth terminal connected to
earth
Surge
Power Supply
L
+
Fig. 25-6 Functional earth terminal not connected to
Surge
Power Supply
L
earth
Spike
24V
+
N
FE
X
-
Y
X
N
-
25.10. OPERATION ON TWO PHASES
The power supply can be used on two phases of a three-phase-system
Instructions for two phase operation:
a) A phase to phase connection is allowed as long as the supplying voltage is below 240V
b) Use a fuse or a circuit breaker to protect the N input. The N input is internally not protected and is in this
case connected to a hot wire. Appropriate fuses or circuit breakers are specified in section 25.7 “External
Input Protection”.
Fig. 25-7 Schematic for two phase operation
L1
L3
L2
max.
+10%
240V
Power Supply
L
Fuse
N
FE
AC
internal
fuse
DC
+10%
.
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
18/20
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
25.11. USE IN A TIGHTLY SEALED ENCLOSURE
When the power supply is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher
than the outside. The inside temperature defines the ambient temperature for the power supply.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producing equipment inside the box
Enclosure: Rittal Type IP66 Box PK 9510 100, plastic, 130x130x75mm
Input: 230Vac
Load: 12V, 1.3A
Temperature inside the box: 38.9°C (in the middle of the right side of the power supply with a distance of 1cm)
Temperature outside the box: 28.0°C
Temperature rise: 10.9K
Load: 12V, 1.05A
Temperature inside the box: 35.9°C (in the middle of the right side of the power supply with a distance of 1cm)
Temperature outside the box: 27.4°C
Temperature rise: 8.5K
; load is placed outside the box
; (=80%) load is placed outside the box
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
19/20
C
C
C
C
C
MiniLine
12V, 1.3A, SINGLE PHASE INPUT
ML15.121
25.12. MOUNTING ORIENTATIONS
Mounting orientations other than input terminals on the bottom and output on the top requires a reduction in
continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction
influences the lifetime expectancy of the power supply. Therefore, two different derating curves for continuous
operation can be found below:
Curve A1 Recommended output power.
Curve A2 Max allowed output power (results approx. in half the lifetime expectancy of A1).
Fig. 25-8
Mounting
Orientation A
Standard
Orientation
Fig. 25-9
Mounting
Orientation B
(Upside down)
OUTPUT
Power
Supply
INPUT
INPUT
Supply
Power
OUTPUT
Fig. 25-10
Mounting
Orientation C
(Table-top
mounting)
Fig. 25-11
Mounting
Orientation D
(Horizontal cw)
Supply
INPUT
OUTPUT
Power
Fig. 25-12
Mounting
Orientation E
(Horizontal ccw)
OUTPUT
Power
INPUT
Supply
Output Power
15W
12
9
6
3
0
Ambient Temperature
10 20 30 40
Output Power
15W
12
9
6
3
0
Ambient Temperature
10 20 30 40
Output Power
15W
12
9
6
3
0
Ambient Temperature
10 20 30 40
Output Power
15W
12
9
6
3
0
Ambient Temperature
10 20 30 40
Output Power
15W
12
9
6
3
0
Ambient Temperature
10 20 30 40
50
50
50
50
50
A
1
60°
A
2
A
1
60°
A
2
A
1
60°
A
2
A
1
60°
A
2
A
1
60°
Dec. 2007 / Rev. 1.1 DS-ML15.121-EN
All parameters are specified at 12V, 1.3A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
20/20
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