MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

REDUNDANCY MODULE










Cost Effective Solution to Build Redundant Systems
Dual Input with Single Output
Two Diodes (Common Cathode)DC12-48V (120Vdc) ±25% Wide-range Input
Full Power Between -40°C and +60°C
Compact Design, Width only 45mm
Quick-connect Spring-clamp Terminals
Easy Wiring:
Distribution Terminal for Negative Pole Included
3 Year Warranty

PRODUCT DESCRIPTIONSHORT-FORM DATAThe MLY02.100 is a simple is a redundancy module,
which can be used to build 1+1 and N+1 redundant
system. It is equipped with two input channels, which
can be connected to power supplies with up to 5A
output current and one output, which can carrynominal currents up to 10A. The module is suitable forpower supplies with constant current overload behavior
as well as any kind of “Hiccup” overload behavior.

Input voltage

Unique quick-connect spring-clamp terminals allow asafe and fast installation and a large international
approval package for a variety of applications makes
this unit suitable for nearly every situation.

ORDER NUMBERS

Input voltage
range
Input current
Output current

DC 12-48V ±25%
DC 12-120V ±25%
9-60Vdc
9-150Vdc
2x 0-5A
2x 0-8A
0-10A
10-16A<16A

Input to output
voltage droptyp. 0.8V
typ. 0.9V
typ. 0.9V
Power losses
typ. 0W
typ. 4.0W
typ. 4.5W
typ. 9.0W
Temperature range -40°C to +70°C
Derating
0.25A/°C
Dimensions
45x75x91mm
Weight140g / 0.31lb

w/o restrictions
with restrictions
w/o restrictions
with restrictions
continuousfor 5 seconds
continuousfor 5 seconds
at cont. overload/
short circuit
input: 2x2.5A
input: 1x5A
input: 2x5A
at no load
input: 2x2.5A
input: 1x5A
input: 2x5A
operational,+60 to +70°C
WxHxD

MAIN APPROVALS
For details and the complete approval list, see chapter 13.

Redundancy
ModuleMLY02.100

UL 508

UL 60950-1

ATEX

IECEx

MarineMarineJul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

INDEX
Page
1. Intended Use .......................................................3
2. Installation Instructions ......................................3
3. Input and Output Characteristics .......................5
4. Power Losses ........................................................6
5. Lifetime Expectancy and MTBF...........................7
6. Terminals and Wiring ..........................................8
7. Functional Diagram .............................................9
8. Front Side and User Elements .............................99. EMC ....................................................................10
10. Environment ......................................................11
11. Protection Features ...........................................12
12. Safety Features ..................................................12Page
13. Approved, Fulfilled or Tested Standards ......... 13
14. Regulatory Product Compliance ...................... 14
15. Physical Dimensions and Weight ..................... 15
16. Accessories ........................................................ 15
17. Application Notes ............................................. 16
17.1. Recommendations for Redundancy......... 16
17.2. Inductive and Capacitive Loads................ 16
17.3. Example: 1+1 Redundancy ....................... 16
17.4. Example: N+1 Redundancy....................... 1717.5. Example: Battery Back-up ........................ 1717.6. Mounting Orientations ............................ 18

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

TERMINOLOGY AND ABREVIATIONSPE andsymbolPE is the abbreviation for Protective Earth and has the same meaning as the symbol.

t.b.d.

To be defined, value or description will follow later.

DC 24VA figure displayed with the AC or DC before the value represents a nominal voltage withstandard tolerances (usually ±15%) included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)24Vdc

A figure with the unit (Vdc) at the end is a momentary figure without any additional
tolerances included.

may

A key word indicate flexibility of choice with no implied preferenceshall

A key word indicate a mandatory requirement

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

1+1 Redundancy

Use of two identical power supplies in parallel to provide continued operation following most
failures in a single power supply. The two
N+1
1+1
Redundancy
Redundancy
power supply outputs should be isolated
AC
AC
AC
AC
AC
AC
AC
AC
from each other by utilizing diodes or theswitching arrangements.
DC
DC
DC
DC
DC
DC
DC
DC
E.g. two 2.5A power supplies are needed toachieve a 2.5A redundant system.
IN 1 IN 2
IN 1 IN 2
IN 1 IN 2
IN 1 IN 2

N+1 Redundancy

Use of three or more identical power
supplies in parallel to provide continued
OUT
OUT
OUT
OUT
operation following most failures in asingle power supply. All power supply
Load
Load
outputs should be isolated from each otherby utilizing diodes or other switchingarrangements. E.g.: To achieve a 10A redundant system, five 2.5A power supplies are needed ina N+1 redundant system.

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany+

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

+

Earth, Ground

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MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

1. INTENDED USEThis device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control,
process control, monitoring and measurement equipment or the like. Do not use this device in equipment where
malfunction may cause severe personal injury or threaten human life.
The redundancy module can be used with any type of power supply as long as the maximum output current ratings
are not exceeded. It is suitable for power supplies with continuous overload current as well as any kind of intermittent(Hiccup) overload behavior.
If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.

2. INSTALLATION INSTRUCTIONSWARNING

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

- Turn power off before working on the device and protect against inadvertent re-powering.
- Do not open, modify or repair the device.
- Use caution to prevent any foreign objects from entering into the housing.
- Do not use in wet locations or in areas where moisture or condensation can be expected.
- Do not touch during power-on, and immediately after power-off. Hot surface may cause burns.
Obey the following installation instructions:This device may only be installed and put into operation by qualified personnel.
This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to
the factory for inspection.
Install the device in an enclosure providing protection against electrical, mechanical and fire hazards.
Do not ground or earth the positive output pole which could prevent redundancy in case of a ground failure. Groundthe negative output pole, when needed.
Use only power supplies with a negligible output ripple voltage in the low frequency range between 50Hz and 10kHz
when used in marine applications according to the GL regulations.
Install the device onto a DIN rail according to EN 60715 with the input terminals on the top of the device. Other
mounting orientations require a reduction in output current.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that aredesigned for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient
temperatures up to +60°C and 90°C for ambient temperatures up to +70°C. Ensure that all strands of a stranded wire
enter the terminal connection.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against
spilled liquids.
The input must be powered from a PELV or SELV source or an “Isolated Secondary Circuit” in order to maintain a SELVor PELV output.
Check correct input polarity. The device will not operate when input voltage is reversed.
The device is designed as “Class of Protection III” equipment according to IEC 61140.
The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do notcover ventilation grid!
The device is designed for altitudes up to 5000m (16400ft). Above 2000m (6560ft) a reduction in output current isrequired.

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side.
Increase the 5mm to 15mm in case the adjacent device is a heat source. When the device is permanently loaded withless than 50%, the 5mm can be reduced to zero.
The maximum surrounding air temperature is +70°C (+158°F). The operational temperature is the same as the ambientor surrounding air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Installation Instructions for Hazardous Location Areas
The device is suitable for use in Class I Division 2 Groups A, B, C, D locations and for use in Group II Category 3 (Zone 2)
environments.
Hazardous Location classification: ATEX: EPS 11 ATEX 1 312 X, II 3G EX ec IIC T4 Gc

WARNINGEXPLOSION HAZARDS!

Substitution of components may impair suitability for this environment.
Do not disconnect the device unless power has been switched off or the area is known to be non-hazardous.
A suitable enclosure must be provided for the end product which has a minimum protection of IP54 and fulfils therequirements of the EN 60079-0.

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

MiniLine

3. INPUT AND OUTPUT CHARACTERISTICS
Number of inputs
Number of outputs
Input voltage

nom.

Input voltage range
Input voltage with restrictions
Input voltage range
with restrictions
Voltage drop, input to output

Input current

Peak input current
Output current

Reverse current
Reverse voltage
Note 1:
Note 2:
Note 3:

2
1
DC 12-48V ±25%

The input circuitry must meet the SELV requirements
stipulated by IEC/EN/UL 60950-1.

nom.

9–60Vdc
DC 12-120V ±25%9-150Vdc

See note 3 on bottom of the table
Restrictions apply, see note 3 on bottom of the table.

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

0.8V
0.9V
0.9V
2x 0-5A
1x 0-10A
2x 5-8A
125A
10A
10-16A
16A
0.6mA
200Vdcat 2x2.5A, see Fig. 3-2
at 1x5A, see Fig. 3-3
at 2x5A, see Fig. 3-2
continuous
continuous, see note 1
for 5 seconds
for maximal 10ms per input
continuousfor 5 seconds
at continuous overload or short circuit, see note 2
per input, -40°C to +60°C
voltage applied to the output, continuously allowed

Each input can be loaded up to 10A. At currents above 10A, the other input should not be loaded. It is preferable to parallel the two
inputs in order to minimize the power loss in such cases.
Ensure that the continuous output current does not exceed 16A. Check the short-circuit current of the power sources and if thepower source can deliver more than 16A together, use an appropriate fuse on the output.
The redundancy module can be used with input voltages up to 150Vdc with the constraint, that it can be used only as a single input
module at voltages above 60Vdc. Both inputs need to be connected together as shown in Fig. 3-1. Ensure proper means to protect
against touching this voltage.
Fig. 3-1 Restrictions for utilizing voltages between 60 and 150Vdc (See also Note 3)
Power Supply

Power Supply

AC+

DC (>60V)
Power Supply

AC

AC

+

DC (>60V)-

Diode Module

+

-

+

-

+

-

+

+ Load- >60VDC (>60V)
Power Supply

AC

+

-

DC (>60V)

Diode Module

+

-

+

-

+

-

+ Load- >60V

Diode Module

+

-

+

-

+

-

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

MiniLine

Fig. 3-2 Input to output voltage drop when both inputs draw current(typical 1+1 redundant case, when the output voltages of the two units are equal or set into “parallel use” mode)

Voltage Drop, typ.

QS5.241

1000mV

I1
A

24V,5A
+

800mV

A

600mV

B

-

A... 25°C
B... 60°C

400mV

V U1

QS5.241+

Input, Output Current

0mV
Output: 0A

2A

4A

6A

8A

Input: 0A

2x1A

2x2A

2x3A

2x4A

10A
2x5A

-

Input 1

OutputV U2

Variable
Load,
0-10A

UOUT V

Input 2

Voltage Drop = U1 - UOUT

U1 = U2

I1 = I2

IOUT
A

I2
A

24V,5A

200mV

Output

MLY02.100

Fig. 3-3 Input to output voltage drop when only one input draws current
QS10.241

Voltage Drop, typ.

I1
A

24V,10A

1000mV

+

A

800mV

B

-

600mV

V U1

Output

MLY02.100
Input 1IOUT
A
OutputVariable
Load,
0-10A

UOUT V

A... 25°C
B... 60°C

400mV
200mV

Not used or
power supply
with lower
voltage

Output Current

0mV
0A

2A

4A

6A

8A

Input 2

10A

Voltage Drop = U1 - UOUT

4. POWER LOSSESPower losses

DC 24V
4.0W
4.5W
9.0W
0W

typ.
typ.
typ.
typ.

Standby power losses

input: 2x2.5A
input: 1x5A
input: 2x5A
at no output current

Fig. 4-1 Power losses

Power Losses, typ.

10W
8W

A
B

A... 25°C
B... 60°C

6W
4W
2W

Input, Output Current

0
Output: 0A

2A

4A

6A

8A

Input: 0A

2x1A

2x2A

2x3A

2x4A

10A
2x5A

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

5. LIFETIME EXPECTANCY AND MTBF
The redundancy module has two input channels which are completely independent from each other. Each control
circuit, auxiliary voltage source, or other circuitry in the module are designed separately for each input. The dual input
redundancy module can be considered as two single redundancy modules combined together in one housing. The only
common point is the circuit trace that ties the two separate circuits together at the output.
The MTBF figures below are for the entire dual input module. If the MTBF number of only one path is needed, simply
double the value from the table.
The redundancy module does not have electrolytic capacitors included. Therefore, the lifetime expectancy is extremely
high.
Input / output
current conditions
Lifetime expectancy *)MTBF **) SN 29500, IEC 61709
MTBF **) MIL HDBK 217F

min.
min.

Input: 2x5A
Output: 10A
25 years
25 years
84 868 000h
125 266 000h
71 454 000h
81 453 000h

at 24V and 40°C
at 24V and 25°C
at 24V 40°C
at 24V 25°C
at 24Vand 40°C (Ground Benign GB40)
at 24Vand 25°C (Ground Benign GB25)*) The Lifetime expectancy shown in the table indicates the minimum operating hours (service life).
**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of adevice. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.
The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means thatstatistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit
has been running for 50 000h or only for 100h.

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

6. TERMINALS AND WIRINGType

Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter
Wire stripping length
Pull-out force

Input and output
Bi-stable, quick-connect spring clamp terminals.
IP20 Finger safe construction.
Suitable for field- and factory installation.
0.3-4mm2
0.3-2.5mm2
26-12 AWG
2.8mm (including ferrule)
6mm / 0.25inch
10AWG:80N, 12AWG:60N, 14AWG:50N,
16AWG:40N (according to UL486E)

Instructions:a) Use appropriate copper cables that are designed forminimum operating temperatures of:
60°C for ambient up to 45°C and
75°C for ambient up to 60°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) Ferrules are allowed, but not required.
e) Do not connect or disconnect the wires from the terminals
below -25°C (-13°F).

Terminals shipped in open
position.

Fig. 6-1 Connecting a wire

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

7. FUNCTIONAL DIAGRAM
Fig. 7-1 Functional diagram

+
-

+
+

+
Input 2--

Input 1

Output8. FRONT SIDE AND USER ELEMENTS
Fig. 8-1 Front sideA

Output terminal

B

Input terminals for input 1

C

Input terminals for input 2

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

9. EMCThe redundancy module is suitable for applications in industrial environment as well as in residential, commercial andlight industry environment without any restrictions. A detailed EMC report is available on request.
EMC Immunity
Electrostatic discharge
Electromagnetic RF field
Fast transients (Burst)
Surge voltage on input lines
Surge voltage on output line
Conducted disturbancePower-frequency magnetic field *)According generic standards: EN 61000-6-1 and EN 61000-6-2
Contact discharge
8kV
EN 61000-4-2
Air discharge
15kV
EN 61000-4-3
80MHz-2.7GHz
10V/m
Input lines
2kV
EN 61000-4-4
Output lines
2kV
EN 61000-4-5+ / -  DIN rail
1kV
EN 61000-4-5+ / -  DIN rail
1kV
EN 61000-4-6
0.15-80MHz
10V
EN 61000-4-8
50Hz
30A/m

Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A

Criterions:
A: Redundancy module shows normal operation behavior within the defined limits.
Notes:*) A test is not applicable according to EN 61000-6-2, since the device does not contain components susceptible to magnetic fields, e.g. hallelements, electrodynamic microphones, etc.

According generic standards: EN 61000-6-3 and EN 61000-6-4
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
Class B, input lines *)IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
Class B, output lines *)Radiated emission
EN 55011, EN 55032
Class B
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) thisdevice must accept any interference received, including interference that may cause undesired operation.
EMC Emission
Conducted emission*)

Provided, that power sources connected on the inputs fulfill the class B requirements too.

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

MiniLine

10. ENVIRONMENT
Operational temperature *)Output de-rating
Storage temperature
Humidity **)Vibration sinusoidal ***)

Shock ***)

Altitude-40°C to +70°C (-40°F to 158°F)
0.25A/°C-40 to +85°C (-40°F to 185°F)
5 to 95% r.H.
2-17.8Hz: ±1.6mm
17.8-500Hz: 2g
2 hours / axis
15g 6ms, 10g 11ms
3 bumps / direction
18 bumps in total
0 to 2000m (0 to 6560ft)
2000 to 6000m (6560 to 20000ft)

Altitude derating
Over-voltage category

0.7A/1000m or 5°C/1000m
not applicable

Degree of pollution

2

Reduce output power above +60°C
60-70°C (140°F to 158°F), seefor storage and transportation
IEC 60068-2-30
IEC 60068-2-6

IEC 60068-2-27

without any restrictions
reduce output power or ambient temperature,
see Fig. 10-2
> 2000m (6500ft), see Fig. 10-2
The concept of the overvoltage category isused for equipment energized directly fromthe low voltage mains (IEC 60664-1 §4.3.3.2.1).
IEC 62103, EN 50178, not conductive*) Operational temperature is the same as the ambient temperature and is defined as the air temperature 2cm below the unit.
**) Do not energize while condensation is present***) Tested in combination with DIN rails according to EN 60715 with a height of 15mm and a thickness of 1.3mm and standard mounting
orientation.
Fig. 10-1 Output current vs. ambient temp.

Allowed Output Current

17.5A
15.0

Allowed Output Current

17.5A

at overload / short circuit

12.5
10.0

Fig. 10-2 Output current vs. altitude

12.5

normal mode

7.5

5.0

5.0

2.5

2.5

Ambient Temperature

020

normal mode

10.0

7.5

0
-40 -25

overload / short circuit

15.0

40

A
A... Tamb < 60°C
B... Tamb < 50°C
C... Tamb < 40°C

0

2000

C

Altitude0

60 70°C

B

4000

6000m

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

11. PROTECTION FEATURES
Output over-current protection
Reverse input polarity protection
Degree of protection
Penetration protection
Over-temperature protection
Input transient protection
Output transient protection
Internal input fuse

not included
included
IP 20> 2.5mmnot included
not included
not included
not included

unit does not start when input voltage is reversed
EN/IEC 60529
e.g. screws, small parts

12. SAFETY FEATURES
Input / output separation
Safety level of output voltage

Class of protection

no galvanic separation
200V epitaxial diode between input and output
The output voltage is regarded to be SELV (EN 60950-1) or PELV (EN 60204-1, EN
50178, IEC 60364-4-41) if the input voltage fulfils the requirements for a SELV sourceor PELV source.
IIIplastic housing, PE connection not required

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

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MLY02.100
MiniLine

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

13. APPROVED, FULFILLED OR TESTED STANDARDSUL 508

IEC 60950-1

UL 60950-1

ATEX

IECEx

Class I Div 2

Marine (DNV)

Marine (ABS)IEC 60068-2-60

UL Certificate
Listed equipment for category NMTR - Industrial Control
Equipment
Applicable for US and Canada
E-File: E198865
CB Scheme Certificate
General safety requirements for Information Technology
Equipment (ITE)UL Certificate
Recognized component for category QQGQ - Information
Technology Equipment (ITE)
Applicable for US and Canada
E-File: E137006
Agency Certificate (Bureau Veritas)
EN 60079-0 Explosive atmospheres - General requirements
EN 60079-7 Equipment protection by type of protection "e"Certificate: EPS 11 ATEX 1 312 X
Temperature Code: T4
Type of Protection: ec
IECEx Certificate
IEC 60079-0 Explosive atmospheres - General requirements
IEC 60079-7 Equipment protection by type of protection "e”
Certificate: IECEx EPS 12.0032X
Temperature Code: T4
Type of Protection: ec
CSA Certificate
Power Supplies for Hazardous Location
Applicable for Canada and US
CSA Class: 5318-01 (Canada), 5318-81 (USA)
Temperature Code: T4
Groups: A, B, C and D
DNV Certificate
DNV Type approved product
Certificate: TAA00002JT
Temperature: Class B
Humidity: Class B
Vibration: Class C
EMC: Class A
Enclosure: Class A
ABS Design Assessment Certificate
ABS (American Bureau of Shipment) assessed product
Certificate: 17-HG1599236-PDA
Manufacturer's Declaration (Online Document)
Environmental Tests, Flowing Mixed Gas Corrosion Test
Test Ke - Method 4
H2S: 10ppb
NO2: 200ppb
Cl2: 10ppb
SO2: 200ppb
Test Duration: 3 weeks, which simulates a service life of 10 years.

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

13/18

MLY02.100
MiniLine
ISA-71.04 G3

VDMA 24364

MLY-Series

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE
Manufacturer's Declaration (Online Document)
Airborne Contaminants Corrosion Test
Severity Level: G3 Harsh
H2S: 100ppb
NOx: 1250ppb
Cl2: 20ppb
SO2: 300ppb
Test Duration: 3 weeks, which simulates a service life of 10 years
Paint Wetting Impairment Substances Test (or LABS-Test)
Tested for Zone 2 and test class C1 according to VDMA 24364-C1L/W for solvents and water-based paints

14. REGULATORY PRODUCT COMPLIANCE
EU Declaration ofConformity

REACH Directive

WEEE Directive

EAC TR Registration

The CE mark indicates conformance with the- EMC directive- ATEX directive- RoHS directive
Manufacturer's Statement
EU-Directive regarding the Registration, Evaluation,
Authorization and Restriction of Chemicals
Manufacturer's Statement
EU-Regulation on Waste Electrical and Electronic Equipment
Registered in Germany as business to business (B2B) products.
EAC Certificate
EAC EurAsian Conformity - Registration Russia, Kazakhstan andBelarus8504408200, 8504409000

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

14/18

MLY02.100
MLY-Series

MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

15. PHYSICAL DIMENSIONS AND WEIGHT
WeightDIN rail

Installation clearances

140g / 0.31lb
Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
The DIN rail depth must be added to the unit depth (91mm) to calculate the total required
installation depth.
See chapter 2

Fig. 15-1 Front viewFig. 15-2 Side view

16. ACCESSORIESDIN rail bracket for wall or panel mount:
A suitable DIN rail bracket is available on request.

The picture of the power supply is for representation only

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

15/18

MLY02.100
MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

17. APPLICATION NOTES
17.1. RECOMMENDATIONS FOR REDUNDANCY
Recommendations for the configuration of redundant power systems:•

Use separate input fuses for each power supply.

•

Use three-phase power supplies to gain functional safety if one phase fails.

•

When single-phase power supplies are utilized connect them to different phases or mains circuits if possible.

•

Set the power supply in “Parallel-Use” mode if this feature is available•

It is desirable to set the output voltages of all power supplies to the same value.

17.2. INDUCTIVE AND CAPACITIVE LOADSThe unit is designed to supply any kind of loads, including unlimited capacitive and inductive loads.

17.3. EXAMPLE: 1+1 REDUNDANCY
1+1 Redundancy up to 2.1A requires two ML50.100 power supplies (each 2.1A output current) and one MLY02.100
redundancy module.
Fig. 17-1 Wiring diagram, 1+1 Redundancy, 2.1A output current

Alarm
Monitor+ + - - DC

+ + - - DC

OutputOutputML50.100
Power
SupplyML50.100
Power
Supply

Input

Input

L

L

OK

+ - + IN 1 IN 2

OK

N

MLY02.100

Load

Output+ + - -

+ -

N

I

I
L
N

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

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

16/18

MLY02.100
MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

17.4. EXAMPLE: N+1 REDUNDANCY
N+1 Redundancy up to 6.3A requires four ML50.100 power supplies (each 2.1A output current) and two MLY02.100
redundancy modules.
Fig. 17-2 Wiring diagram, N+1 Redundancy, 6.3A output current

Alarm
Monitor

ML50.100
Power
SupplyInput
LN+ - + IN 1 IN 2

MLY02.100+ + - - DC

+ + - - DC

OutputOutputML50.100
Power
SupplyML50.100
Power
Supply

Input

Input

L

L

OK

Output+ + - -OKN

N

+ + - - DC

+ - + IN 1 IN 2

OK

OutputML50.100
Power
SupplyMLY02.100

Output+ + - -

Input
L

I

OK

Output

N

Load
+ -

I

+ + - - DC

I

I

L
N

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

17.5. EXAMPLE: BATTERY BACK-UP
A battery back-up requires one power supply and one MLY02.100 redundancy module.
Please note:
Set output voltage of power supply to 26.5Vdc minimum to ensure, that the load current is delivered from the power
supply and not from charger (battery). Use a fuse between battery and MLY02.100!
Fig. 17-3 Wiring diagram, 10A Battery back-up

FailureMonitor

24V Battery

+

I

-

+ + - - DC

OK

OutputML50.100
Power
SupplyBattery
Charger

Input
L

N

+ - + IN 1 IN 2

MLY02.100
Output+ + - -

L
N
PE

Load

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

17/18

MLY02.100
MiniLine

DC12-48V (120V), 10A, DUAL REDUNDANCY MODULE

MLY-Series

17.6. MOUNTING ORIENTATIONSMounting orientations other than input terminals on the bottom and output on the top require a reduction incontinuous output power or a limitation in the maximum allowed ambient temperature.
Fig. 17-4
Mounting
Orientation A(Standardorientation)

Output Current
INPUT

10A
8
6
4
2
0
10

Redundancy
ModuleOUTPUT

Fig. 17-5
Mounting
Orientation B(Upside down)

20

30

40

50

60°C

Output Current
OUTPUT

10A
8
6
4
2
0
10

Redundancy
ModuleINPUT
Fig. 17-6
Mounting
Orientation C(Table-top
mounting)

Ambient Temperature

20

30

40

50

60°C

Output Current

10A
8
6
4
2
0
10

Ambient Temperature

20

30

40

50

60°C

Output Current

INPUT

Fig. 17-8
Mounting
Orientation E(Horizontal ccw)

Redundancy
ModuleOUTPUT

10A
8
6
4
2
0
10

Ambient Temperature

20

30

40

50

60°C

OUTPUT

INPUT

Output Current

Redundancy
ModuleFig. 17-7
Mounting
Orientation D(Horizontal cw)

Ambient Temperature

10A
8
6
4
2
0
10

Ambient Temperature

20

30

40

50

60°C

Jul. 2021 / Rev. 1.5 DS-MLY02.100-EN
All parameters are specified at 24V, 10A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

18/18