YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

MOSFET REDUNDANCY MODULE













Single Input with Single Output
Equipped with Plug-connector for “Hot Swapping”
Suitable for all DIMENSION Power Supplies
Except QT40 Series
Only 150mV Voltage Drop at 40A
Only 6.2W at 40A
160% (65A) Peak Load Capability
Reverse Input Polarity Protection
Full Power Between -40°C and +60°C
Width only 46mm
Rugged Metal Housing
Easy Wiring:
Distribution Terminal for Negative Pole Included
3 Year Warranty

PRODUCT DESCRIPTIONSHORT-FORM DATAThe YR40.245 is a redundancy module, which can beused to build redundant systems. The module has one
input and one output and can carry nominal currents up
to 40A. The output is equipped with a plug-connector,
which allows replacing the power supply or the
redundancy module while the system is running (hotswapping)

Input voltage
Input voltage range
Input current

The novelty of this redundancy module is the utilizationof mosfets instead of diodes for the decoupling of theoutput. This reduces the heat generation and thevoltage drop between input and output. The
redundancy module does not require an additional
auxiliary voltage.

Output current

Input to output
voltage drop
Power losses

DC 12-28V
8.4-36.4Vdc
0-40A
40-65A0-40A
40-65Amax. 22A
typ. 80mV
typ. 150mV
typ. 120mW
typ. 1.8W
typ. 6.2W-40°C to +70°C
1A/°C
46x124x127mm

Due to the low power losses, the unit is very slender andonly requires 46mm width on the DIN rail. Largeconnection terminals allow for a safe and fast
installation. The large international approval package
makes this unit suitable for nearly every application.

Temperature range
Derating

ORDER NUMBERS

MAIN APPROVALS

Dimensions
Weight*)±30%
continuousfor 5 seconds
continuousfor 5 seconds*)in overload or
short circuit modeat 20A
at 40A
at no load
at 24V, 20A
at 24V, 40A
operational+60 to +70°C
WxHxD

340g, 0.75lb*) Currents at voltages below 6V**) Plus height for plug connector

For details and the complete approval list, see chapter 15

Redundancy
ModuleYR40.245

Accessory

ZM2.WALL

Wall/panel mountbracket

ZM11.SIDE

Side mount bracket

UL 508

UL 60950-1

Class I Div 2

ATEX

IECEx

MarineJun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-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. Replacing Units while the System is Running ....9
8. Functional Diagram ...........................................10
9. Front Side and User Elements ...........................10
10. EMC ....................................................................11
11. Environment ......................................................12
12. Protection Features ...........................................13
13. Safety Features ..................................................13
14. Dielectric Strength ............................................13Page
15. Approved, Fulfilled or Tested Standards ......... 14
16. Regulatory Product Compliance ...................... 15
17. Physical Dimensions and Weight ..................... 16
18. Accessories ........................................................ 17
18.1. ZM2.WALL - Wall Mounting Bracket ....... 1718.2. ZM12.SIDE - Side Mounting Bracket ........ 17
19. Application Notes ............................................. 18
19.1. Recommendations for Redundancy......... 18
19.2. Inductive and Capacitive Loads................ 18
19.3. Sidewards Installation Clearances............ 18
19.4. 1+1 Redundancy up to 40A ...................... 1919.5. N+1 Redundancy, Example with 120A .... 1919.6. Mounting Orientations ............................ 20

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

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

Earth, Ground

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

t.b.d.

To be defined, value or description will follow later.

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 indicating flexibility of choice with no implied preferenceshall

A key word indicating a mandatory requirement

shouldA key word indicating 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 power supply outputs should be isolated from eachother by utilizing diodes or other switching arrangements. E.g. two 10A power supplies areneeded to achieve a 10A redundant
N+1
1+1
system.

N+1 Redundancy

Use of three or more identical power
supplies in parallel to provide
continued operation following most
failures in a single power supply. All
power supply outputs should be
isolated from each other by utilizing
diodes or other switchingarrangements.
E.g.: To achieve a 30A redundant
system, four 10A power supplies areneeded in a N+1 redundant system.

Redundancy

AC

AC
DC

AC
DC

Redundancy

AC
DC

AC

DC

AC
DC

DC

IN

IN

IN

IN

OUT

OUT

OUT

OUT

OUT

OUT

-

Load

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

+

IN

+

IN

-

Load

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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

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.

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 bottom 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.
Unused screw terminals should be securely tightened.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20.
The input must be powered from a PELV or SELV source or an “Isolated Secondary Circuit” in order to maintain a SELVor PELV output. C
heck 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.
A PE (ground) connection is not required. However, connecting the chassis ground terminal to ground can bebeneficial to gain a high EMI immunity.
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 6000m (19685ft). See additional requirements in the product datasheet for
use above 2000m (6560ft).
Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

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. Under special circumstances clearances can be reduced. See details in
the product datasheet.
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
WARNING EXPLOSION 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

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

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

nom.

Input voltage range
Voltage drop, input to output
Input current

Peak input current
Output current

Reverse current
Reverse voltage
Output capacitance

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

1
1
DC 12-28V ±30%

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

8.4-36.4Vdc
80mV
150mV
0-40A
40-65A22A

at 20A, see Fig. 3-1
at 40A, see Fig. 3-1
continuousfor 5 secondsin overload (voltage < 6V) or short circuit mode
for max. 1ms per input
continuousfor 5 secondsin overload (voltage < 6V) or short circuit modeat 24V, per input, -40°C to +70°C
voltage applied to the output, continuously allowed

1500A
40A
40-65A
22A
1mA
40Vdc
320µF

Fig. 3-1 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)

200mV
175mV
150mV
125mV
100mV
75mV
50mV
25mV
0mV

Voltage Drop, typ
A... 25°C
B... 60°C

B

A

QS40
24V,40A
+

-

IIN
A
V UIN

OutputYR40.245

IOUT
A

Input

OutputVariable
Load,
0-40A

UOUT V

Voltage Drop = UIN - UOUT

0

10A

20A

30A

40A

Output Current

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

4. POWER LOSSESPower losses

typ.
typ.
typ.

Standby power losses

DC 12V
1.7W
6.1W
0.06W

DC 24V
1.8W
6.2W
0.12W

at 20A
at 40A
at no output current

Fig. 4-1 Power losses when both inputs draw equal current
Power Losses, typ.

8W
7
6
5
4
3
2
1
0

A... 24V, 25°C
B... 24V, 60°C

QS40

B A

set to
24V

+

-

IIN
A
V UIN

OutputYR40.245

IOUT
A

Input

OutputVariable
Load,
0-40A

UOUT V

Losses = ( UIN * IIN ) - UOUT * IOUT

Output Current

0

5

10

15

20

25

30

35 40A

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

5. LIFETIME EXPECTANCY AND MTBF
Load conditions
Lifetime expectancy *)MTBF **) SN 29500, IEC 61709
MTBF **) MIL HDBK 217F

Output: 20A
557 000h *)1 576 000h *)13 290 000h
22 628 000h
381 000h
518 000h
1 816 000h
2 486 000h

Output: 40A
134 000h *)378 000h *)6 357 000h
12 238 000h
278 000h
366 000h
1 401 000h
1 861 000h

at 24V and 40°C
at 24V and 25°C
at 24V 40°C
at 24V 25°C
Ground Fixed GF40 (24V and 40°C)
Ground Fixed GF25 (24V and 25°C)
Ground Benign GB40 (24V and 40°C)
Ground Benign GB25 (24V and 25°C)

The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime
expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated according to thecapacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years(131 400h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices.
**) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of adevice. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.
The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h means thatstatistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not be determined if the failed unit
has been running for 50 000h or only for 100h.
*)Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

6. TERMINALS AND WIRING
Input
Screw termination
IP20 Finger safe construction.
Suitable for field installation.
0.5-16mm2
0.5-10mm222-8 AWG
5.2mm (including ferrule)
12mm / 0.5inch
3.5x1mm slotted or Pozidrive No 2
1.2Nm, 10.6lb-in

Type

Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter
Wire stripping length
Screwdriver
Recommended tightening torqueOutputPluggable screw termination
IP20 Finger safe construction.
Suitable for field installation.
0.2-16mm2
0.5-10mm222-6 AWG
5.4mm (including ferrule)
12mm / 0.5inch
5.5x1mm slotted or Pozidrive No 2
1.4Nm, 12lb-in

To connect the chassis to ground, use a ring-type terminal (ring cable lug) which is suitable for a M4 screw and connect
it to the chassis ground terminal on top of the unit.
Instructions:a) The external circuitry of all terminals must meet the safety requirements stipulated by IEC/EN/UL 60950-1: SELV.
b) Use appropriate copper cables that are designed for minimum 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.
c) Follow national installation codes and installation regulations!
d) Ensure that all strands of a stranded wire enter the terminal connection!
e) Screws of unused terminal compartments should be securely tightened.
f) Ferrules are allowed.
g) Do not connect or disconnect the wires from the terminals below -25°C (-13°F).

Instructions for inserting and removing the pluggable output terminal
To avoid an accidental disconnection of the output, the plug connector is equipped with a locking system.
Fig. 6-1 Removing the latch mechanism

A

Unlock the red sliders by pushing the tabs down

B

At the same time slide the tabs backC

Pull-out to unplug the connector

To insert the plug connector, reverse the procedure

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

7. REPLACING UNITS WHILE THE SYSTEM IS RUNNING
Fig. 7-1 Replacing the power supply or redundancy module while the system is running
Load

4
-

+

Power Supply

OutputOutput2

1

YR40.245
Redundancy
ModuleYR40.245
Redundancy
ModuleDC 24VL N PE-+Power Supply

+ +

- -

3a I

Input

+

DC 24V-L N PE

3b

+ +

- -

Input

+

-

I

L
N
PE

Instructions:-Switch-off circuit breaker (3a).

-Remove plug (4). The plug prevents the cables from shorting.

-

Change power supply (1) or/ and redundancy module (2).

-

Put the plug (4) back in.

-Turn-on the circuit breaker (3a).

-The circuit is redundant again.

To replace the right power supply or redundancy module, use the same procedure but turn off circuit breaker (3b).

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

8. FUNCTIONAL DIAGRAM
Fig. 8-1 Functional diagram

control

+

+

Input

Output--ChassisGround

9. FRONT SIDE AND USER ELEMENTS
Fig. 9-1 Front sideA

Output Terminals (pluggable screw terminals)

B

Chassis Ground Terminals
To be connected on the top side of the housing with a ring-type terminal(ring cable lug) which is suitable for a M4 screw.
Connection of the chassis is optional and not required since the unit fulfils
the requirements according to protection class III.

C

Input Terminals (screw terminals)

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

10. 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

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
20V/m
Input lines
2kV
EN 61000-4-4
Output lines
2kV
500V
EN 61000-4-5+1kV+/-  Chassis ground

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

500V
1kV

Criterion A
Criterion A

20V
30A/m

Criterion A
Criterion A

Surge voltage on output
lines

EN 61000-4-5

Conducted disturbancePower-frequency magnetic
field *)EN 61000-4-6
EN 61000-4-8++/-  Chassis ground0.15-80MHz
50Hz

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
limits for DC power ports according
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
EN 61000-6-3 fulfilled *)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*)

For information only, not mandatory for EN 61000-6-3. Provided, that power sources connected on the inputs fulfill the requirements too.

Switching frequency

The internal auxiliary supply is generated with a boost converter.
The switching frequency varies from 140kHz to 500kHz depending on the input voltage.

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

11. ENVIRONMENT
Operational temperature *)Storage temperature
Output derating
Humidity **)Vibration sinusoidal ***)
Shock ***)
Altitude-40°C to +70°C (-40°F to 158°F)-40 to +85°C (-40°F to 185°F)
1A / °C
5 to 95% r.H.
2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
2 hours / axis
30g 6ms, 20g 11ms
3 bumps / direction, 18 bumps in total
0 to 2000m (0 to 6 560ft)
2000 to 6000m (6 560 to 20 000ft)

Altitude derating
Over-voltage category

2.5A/1000m or 5°C/1000m
not applicable

Degree of pollution

2

for storage and transportation
60-70°C (140°F to 158°F)
IEC 60068-2-30
IEC 60068-2-6
IEC 60068-2-27
without any restrictions
reduce output power or ambient temperature,
see Fig. 11-2
> 2000m (6500ft), see Fig. 11-2
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. 11-1 Output current vs. ambient temp.
Allowed Output Current

65A
50
40

Fig. 11-2 Output current vs. altitude
Allowed Output Current

65A

short term (< 5s)

50

normal mode

30

20

20

10

10

Ambient Temperature

020

normal mode

40

30

0
-40 -25

short term (< 5s)

40

A
A... Tamb < 70°C
B... Tamb < 60°C
C... Tamb < 50°C

060 70°C

0

2000

B

C

Altitude

4000

6000m

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

12. 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
includedunit does not start when input voltage is reversed

IP 20> 3.6mmnot included
not included
included
not included

EN/IEC 60529
e.g. screws, small parts

see EMC chapter

13. SAFETY FEATURES
Input / output separation
Class of protection
PE resistanceno galvanic separation
III< 0.1Ohm

Mosfet between input and output
PE (Protective Earth) or chassis connection not required
between housing and chassis-ground terminal

14. DIELECTRIC STRENGTH
The input and output voltages have the same reference, are floating and have no ohmic connection to ground.
Type and factory tests are conducted by the manufacturer. Field tests may be conducted in the field using theappropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect input/output
terminals together before conducting the test.
When testing, set the cut-off current settings to the value in the table below.

Type test

60s

A
500VacFactory test

5s

500VacField test

5s

500VacFig. 14-1 Dielectric strength

In- / Output+-

A

ChassisCut-off current setting> 2mA

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
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YR40.245
Y-Series

12-28V, 40A, SINGLE REDUNDANCY MODULE

15. 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 12.0032 X
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: TAA00002A7
Temperature: Class D
Humidity: Class B
Vibration: Class C
EMC: Class B
Enclosure: Class A
ABS Design Assessment Certificate
ABS (American Bureau of Shipment) assessed product
Certificate: 17-HG1599236-PD
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.

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

14/20

YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

ISA-71.04 G3

VDMA 24364

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-C1-L/W for
solvents and water-based paints

16. REGULATORY PRODUCT COMPLIANCE
EU Declaration ofConformity

REACH Directive

WEEE Directive

KC KoreanCertification

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 andRestriction of Chemicals
Manufacturer's Statement
EU-Regulation on Waste Electrical and Electronic Equipment
Registered in Germany as business to business (B2B) products.
KC Korean Certificate
Korean - Registration of Broadcasting and Communication Equipment
Registered under Clause3, Article 58-2 of Radio Waves Act.
Registration No. R-R-PUG-YR40_245
EAC Certificate
EAC EurAsian Conformity - Registration Russia, Kazakhstan and Belarus
8504408200, 8504409000

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

15/20

YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

17. PHYSICAL DIMENSIONS AND WEIGHT
WeightDIN rail

Installation clearances

340g / 0.75lb
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 (127mm) to calculate the total required
installation depth.
See chapter 2

Fig. 17-1 Front viewFig. 17-2 Side viewJun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

16/20

YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

18. ACCESSORIES
18.1. ZM2.WALL - WALL MOUNTING BRACKETThis standard bracket is used to mount the YR40.245 redundancy module onto a flat surface without utilizing a DIN
rail.
Fig. 18-1 ZM2.WALL Wall mounting bracket

Fig. 18-2 Assembled wall mounting bracket

18.2. ZM12.SIDE - SIDE MOUNTING BRACKETThis bracket is used to mount the YR40.245 redundancy module sideways with or without utilizing a DIN rail.
The two aluminum brackets and the black plastic slider of the unit have to be detached, so that the steel brackets canbe mounted.
For sideway DIN rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on
the steel bracket.
Fig. 18-3
ZM12.SIDE Side mounting bracket

Fig. 18-4
Side mounting with DIN rail brackets

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

17/20

YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

19. APPLICATION NOTES

19.1. 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.

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

19.3. SIDEWARDS INSTALLATION CLEARANCES
The minimum clearance recommendations are defined in chapter 2.
Normally, the following installation clearance are recommended: 40mm on top, 20mm on the bottom, 5mm on theleft and right sides when the device is loaded permanently with more than 50% of the rated power. Increase thisclearance to 15mm in case the adjacent device is a heat source (e.g. another power supply).
The clearance between the power supplies and the redundancy module can be reduced to zero under the following
conditions:-

1+1 redundancy application with maximum
40A output current.

-

The power supplies are from the PULSDIMENSION series.

-

The redundancy module is placed between
the two power supplies or at least on one
side of the power supply.

-

The output voltage is set to the same levelon both power supplies.

max.
40A
Load

-

+
Power Supply
DCOK

Parallel Use
Single Use

AC Input

L N PE

24V, 40A

+ +

- -

0mm

Power Supply

YR40.245
Redundancy
ModuleParallel Use

Input

+

-

0mm

OutputDCOK

Single Use

AC Input

L N PE

24V, 40A+ +- -Germany

YR40.245
Redundancy
Module
Input

+

-

0mm

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0-+

Output18/20

YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

19.4. 1+1 REDUNDANCY UP TO 40A
1+1 Redundancy up to 40A requires two 40A power supplies and two YR40.245 redundancy modules.
Fig. 19-1 Wiring diagram, 1+1 Redundancy, 40A output current
24V
40A
Load

FailureMonitor-+Power Supply
DCOK

Parallel Use
Single Use

AC Input

L N PEPower Supply

YR40.245
Redundancy
ModuleParallel Use- -AC Input-+

OutputDCOK

YR40.245
Redundancy
ModuleSingle Use

Input

24V, 40A

+ +

-

+

OutputInput

24V, 40A- -+ +L N PE

+

-

I

I

L
N
PE

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

19.5. N+1 REDUNDANCY, EXAMPLE WITH 120A
N+1 Redundancy up to 120A requires four 40A power supplies and four YR40.245 redundancy modules.
Fig. 19-2 Wiring diagram, n+1 Redundancy, 120A output current+

FailureMonitor-+Power Supply
DCOK

Parallel Use
Single Use

AC Input

L N PEI

24V, 40A

+ +

- -

24V
120A

- LoadPower Supply

YR40.245
Redundancy
ModuleParallel Use

DCOKSingle Use

Input

+

-

+

OutputAC Input-

L N PEI

24V, 40A+ +- -Power Supply

YR40.245
Redundancy
ModuleParallel Use

DCOKSingle Use

Input

+

-

+

OutputAC Input-

L N PEPower Supply

YR40.245
Redundancy
ModuleParallel Use

24V, 40A

+ +

- -

I

OutputDCOK

Single Use

Input

+

-

+

OutputAC Input-

L N PE

24V, 40A+ +- -YR40.245
Redundancy
Module
Input

+

-

I

L
N
PE

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

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

19/20

YR40.245
12-28V, 40A, SINGLE REDUNDANCY MODULE

Y-Series

19.6. 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. 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
Curve A2

Recommended output current.
Max allowed output current (results in approximately half the lifetime expectancy of A1).

Fig. 19-3
Mounting
Orientation A(Standardorientation)

Output Current

40A

OUTPUT30

YR40.245
Redundancy
Module20
10

Ambient Temperature

0

INPUT

10
Fig. 19-4
Mounting
Orientation B(Upside down)

A1

20

30

40

50

60°C

Output Current

40A

A1

INPUT

30
Redundancy
Module20

YR40.245

10

Ambient Temperature

0

OUTPUT

10
Fig. 19-5
Mounting
Orientation C(Table-top
mounting)

20

30

40

50

60°C

Output Current

40A
30

A2

20

A1

10
Ambient Temperature

0
10

50

40

40A

60°C

A2

OUTPUT

YR40.245

Redundancy
Module

30
20

A1

10
Ambient Temperature

0
10

20

30

40

50

60°C

Output Current
A2

30
INPUT

YR40.245

Redundancy
Module40A
OUTPUT

Fig. 19-7
Mounting
Orientation E(Horizontal ccw)

30

Output Current

INPUT

Fig. 19-6
Mounting
Orientation D(Horizontal cw)

20

20

A1

10
Ambient Temperature

0
10

20

30

40

50

60°C

Jun. 2021 / Rev. 1.4 DS-YR40.245-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0Germany

20/20