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YR20.242 Instruction Manual
EN
Product Description
The YR20.242 is a redundancy module for building redundant power supply systems. It is equipped
with two input channels and one output. The two inputs are decoupled by MOSFET technology.
Intended Use
This device is designed for installation in an enclosure and is intended for general use such as in
industrial control, office, communication, and instrumentation equipment. Do not use this device in
equipment, where malfunction may cause severe personal injury or threaten human life.
This 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 constant current overload as
well as any kind of "Hiccup" overload behavior.
Installation Notes
- This device does not contain serviceable parts. If damage or malfunction should occur during
installation or operation, immediately turn power off and send device to the factory for inspection.
- Install device in an enclosure providing protection against electrical, mechanical and fire hazards.
- 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 output terminals on the bottom of
the device. For other orientations see de-rating requirements in the datasheet.
- Make sure that the wiring is correct by following all local and national codes. Use appropriate
copper cables that are designed 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.
- For use in a controlled environment. Do not use the device in pollution degree 3 areas without
additional protection or in applications where a degree of protection better than IP20 is required.
- The input must be powered from a SELV source according to IEC 60950-1, a PELV source
according to IEC 62477-1 or an "Isolated Secondary Circuit" according to UL 508 in order to
maintain a SELV or PELV output.
- Check correct input polarity. The device does not start 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 be beneficial to gain a high EMI immunity.
- The device can supply any kind of loads, including unlimited capacitive and inductive loads.
- Do not apply return voltages from the load to the output higher than 40V.
- The device is designed for convection cooling and does not require an external fan. Do not obstruct
airflow and do not cover ventilation grid (e.g. cable conduits) by more than 30%!
- The device is designed for altitudes up to 6000m. See details in the product datasheet for additional
requirements above 2000m.
- Keep the following minimum installation clearances when the device is permanently loaded with
more than 50% of the nominal current: 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.
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 ambient or surrounding air temperature and is defined as the air temperature 2cm
below the device.
- For suitable accessories, such as mounting brackets or supplementary devices, see product datasheet.
Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany, www.pulspower.com
Germany +49 89 9278 0
China
+86 512 62881820
France
+33 478 668 941
North America
+1 630 587 9780
The information in this document is believed to be accurate and reliable and may change without notice
Technical data
All parameters are typical values specified at 24Vdc input voltage, 20A
output current, 25°C ambient temperature and after a 5 minutes run-in time
unless otherwise noted.
Input voltage DC
Input voltage range
Input current DC
Output current
Input to output voltage drop 60mV
Power losses
Temperature range
Maximum wire size
Wire size AWG
Maximum wire diameter
Wire stripping length
Tightening torque
Size (wxhxd)
Weight
1) Solid / stranded wire 2) Including ferrules 3) Currents at voltages
below 6Vdc 4) Sum of input current of both inputs max. 20A rsp. 24A
Functional diagram
Input 1
Input 2
Wiring scheme - 1+1 redundancy up to 10A load current
+ +
24V,10A
Power
Supply
L1 L2 L3 PE
I
L1
L2
L3
PE
Wiring scheme - n+1 redundancy, E.g. 30A load current
- -
+ +
DC-
24V,10A
OK
Power
Supply
L1 L2 L3 PE
I
I
I
L1
L2
L3
PE
Austria
+43 2764 3213
Singapore
+65 6684 2310
DC 12-28V
±30%
8.4 – 36.4Vdc
4)
2x 0-24A
Below +45°C ambient
4)
2x 0-20A
At +70°C ambient
Derate linearly between +45 and +70°C
0-24A
Below +45°C ambient
0-20A
At +70°C ambient
max. 26A (R.M.S) In overload
circuit mode
At 2x 5A input
110mV
At 2x 10A input
0.21W
At no load
0.6W
At 2x 5A input
2.0W
At 2x 10A input
-40°C to +70°C
1)
6mm² /4mm²
AWG 20-10
2)
2.8mm
7mm / 0.28inch
1Nm / 9lb.inch
32x124x117mm
Without DIN-rail
250g / 0.56lb
control
+
+
-
+
-
control
- -
- -
+
-
+
-
+ +
Input
Input
DC-
DC-
24V,10A
1
2
OK
OK
YR20.242
Power
Redundancy
Supply
Module
Output
L1 L2 L3 PE
-
+
I
I
I
I
I
+
-
+
-
- -
- -
-
-
+ +
+
+
+ +
Input
Input
DC-
DC-
Input
Input
24V,10A
2
24V,10A
1
OK
1
2
OK
YR20.242
YR20.242
Power
Power
Redundancy
Redundancy
Supply
Supply
Module
Module
Output
Output
L1 L2 L3 PE
L1 L2 L3 PE
-
+
-
+
I
I
I
I
I
I
Doc. ID: PU-428.015.00-xxA (2016-12)
Switzerland
+41 56 450 18 10
United Kingdom +44 1525 841001
3)
or short
Output
-
C hassis
Ground
Failure
Monitor
10A
Load
Failure
Monitor
- -
+ +
DC-
24V,10A
OK
Power
Supply
L1 L2 L3 PE
30A
Load
I
I
I
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