Datasheet

CPS20.121
C-Series
12V, 30A, SINGLE PHASE INPUT
21.3. REDUNDANCY MODULES
YR80.242 – (2x 40A Inputs, 1x 80A output)
The YR80.242 is the preferred redundancy module for the CPS20.121 power supply. It is
equipped with two input channels, which are individually decoupled by utilizing mosfet
technology. Using mosfets instead of diodes reduces the heat generation and the voltage
drop between input and output. The YR80.242 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 46mm width on the
DIN-rail.
YR40.245 – (1x 40A input, 1x 40A output)
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 30A with a dual redundancy module
Fig. 21-2 Typical N+1 or 1+1 Redundant configuration for 30A with
multiple YR40.245 redundancy modules
12V
30A
Load
20/26
L
N
PE
Failure
Monitor
L N PE
+ +
- -
12V 30A
DC-
OK
AC Input
Output
CPS20.121
12-15V 30A
Power
Supply
I I
YR80.242
*)
Redundancy
Module
+ - + -
Input
1
Input
2
Output
*)
YR80.241
also possible
L N PE
CPS20.121
12-15V 30A
Power
Supply
+ +
- -
12V 30A
DC-
OK
AC Input
Output
L N PE
CPS20.121
12-15V 30A
Power
Supply
+ +
- -
12V 30A
DC-
OK
AC Input
Output
YR40.245
Redundancy
Module
+ -
Input
Output
+ -
YR40.245
Redundancy
Module
+ -
Input
Output
+ -
L
N
PE
I
12V
30A
Load
Failure
Monitor
L N PE
CPS20.121
12-15V 30A
Power
Supply
+ +
- -
12V 30A
DC-
OK
AC Input
Output
I
Apr. 2014 / Rev. 1.4 DS-CPS20.121-EN
All parameters are specified at 12V, 30A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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