Data Sheet

QS40.241
Q-Series
24V, 40A, SINGLE PHASE INPUT
24.3. YR80.242 - REDUNDANCY MODULE
The YR80.242 is equipped with two input channels (40A 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 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.
24.4. 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. 24-1 Typical 1+1 Redundant configuration for
40A with a dual redundancy module
Fig. 24-2 Typical N+1 or 1+1 Redundant configuration for 40A with
multiple YR40.245 redundancy modules
YR80.242
*)
Redundancy
Module
+ - + -
Input
1
Input
2
Output
L N PE
+ +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
L N PE
+ +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
24V
40A
Load
Failure
Monitor
*)
YR80.241
also possible
L
N
PE
I
I
L N PE
+ +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
L N PE
+ +
- -
24V, 40A
Parallel Use
Single Use
DC-
OK
QS40.241
24-28V 960W
Power Supply
AC Input
YR40.245
Redundancy
Module
+ -
Input
Output
+ -
YR40.245
Redundancy
Module
+ -
Input
Output
+ -
L
N
PE
I
I
24V
40A
Load
Failure
Monitor
Oct. 2014 / Rev. 1.2 DS-QS40.241-EN
All parameters are specified at 24V, 40A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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