Datasheet

QS10.121
Q-Series
12V, 15A, SINGLE PHASE INPUT
21.3. YR40.241 - REDUNDANCY MODULE
The YR40.241 is the preferred redundancy module for QS10.121 power supplies. It is equipped
with two input channels (20A each), which are individually decoupled by utilizing mosfet
technology. The output current can go as high as 80A.
Using mosfets instead of diodes reduces the heat generation and the voltage drop between
input and output.
The YR40.241 does not require an additional auxiliary voltage and is self- powered even in
case of a short circuit across the output.
Due to the low power losses, the unit is very slender and only requires 36mm width on the
DIN-rail.
21.4. YR40.245 - REDUNDANCY MODULE
The YR40.245 is a 40A single channel redundancy module, which is equipped with a plug
connector on the output. The plug connector allows replacing the power supply or the
redundancy module while the system is running. The plug connector avoids that the output
wires can touch and short the load circuit.
The YR40.245 is very slender and only requires 46mm width on the DIN-rail. It also utilizes
mosfet technology instead of diodes for low heat generation and a minimal voltage drop
between input and output. It does not require an additional auxiliary voltage and is self-
powered even in case of a short circuit across the output.
Fig. 21-1 Typical 1+1 Redundant configuration
for 15A with a dual redundancy module
Fig. 21-2 Typical N+1 or 1+1 Redundant configuration for 15A with
multiple YR40.245 redundancy modules
12V
30A
Load
L
N
PE
Failure
Monitor
I I
L N PE
+ +
- -
QS10.121
Power
Supply
12V,15A
L N PE
+ +
- -
QS10.121
Power
Supply
12V,15A
YR40.241
Redundancy
Module
Output
Input
1
Input
2
+
-
+
-
+
-
YR40.245
Redundancy
Module
+ -
Input
Output
+ -
YR40.245
Redundancy
Module
+ -
Input
Output
+ -
L
N
PE
I
I
12V
30A
Load
Failure
Monitor
L N PE
+ +
- -
QS10.121
Power
Supply
12V,15A
L N PE
+ +
- -
QS10.121
Power
Supply
12V,15A
Dec. 2014 / Rev. 2.4 DS-QS10.121-EN
All parameters are specified at 12V, 15A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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