PULS

Redundancy unit

DIMENSION series

Y-series

Dual-input redundancy module (2 x inputs + 1 x output)

built-in decoupl. MOSFET (for 1+1 or N+1 redundancy)
ATEX approval

8.4Vdc-36.4Vdc (12Vdc / 24Vdc nom.)

20A (at 28Vdc)
1A/+60°C...+70°C (derating)

12-28Vdc (12Vdc / 24Vdc nom.)

screw-clamp connections

short-circuit protection (26A threshold at 6V)
Series / parallel operation -- 1+1 Redundancy Use of 2 identical power supplies in parallel to provide continued operation following most failures in a single power supply. The 2 power supply outputs should be isolated from each other by utilizing diodes or other switching arrangements. N+1 Redundancy Use of 3 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 switching arrangements.

32 mm

DIN rail mounting

W32mm x H124mm x D117mm

-40...+70 °C

Suitable for all DIMENSION power supplies except QT20 and QTD20 series

(8.4-36.4Vdc input; 2x5A input) 0.6 W
(8.4-36.4Vdc input; 2x10A input) 2 W

Commercialized

YR20242

(output stage) 320 μF

CE marking
UL 508
UL 60950-1
IEC 60950-1 CB-Scheme
IECEx
ATEX
Class I Div. 2 HazLoc
GL Marine
EAC Registration
EN 61000-6-1 Immunity for residential environments
EN 61000-6-2 Immunity for industrial environments
EN 61000-6-3 Emission for residential environments

For N+1 and 1+1 redundant systems
Dual input with single output
Only 60mV Voltage Drop at 10A Output Current
Only 0.6W Loss at 10A
160% (32.5A) peak load capability
Reverse input polarity protection
Full power between -40°C and +70°C
Width only 32mm
Rugged metal housing
Easy wiring;
Distribution terminal for negative pole included
The YR20.242 is a redundancy module for building redundant power supply systems. It is equipped with 2 input channels and 1 output. The 2 inputs are decoupled by MOSFET technology. In addition to the YR20.242 the YR20.246 is available which is featured with an automated load sharing between the connected power supplies and functions which monitor defects in the redundancy circuit or too high output currents which could prevent redundancy if 1 power supply fails. The YR20.242 utilizes MOSFETs instead of diodes for the decoupling of the 2 input channels. This reduces the heat generation and the voltage drop between input and output. The redundancy module does not require an additional auxiliary voltage. Due to the low power losses the unit is very slender and only requires 32mm width on the DIN-rail. Large connection terminals allow for a safe and fast installation. The large international approval package makes this unit suitable for nearly every application.

(at 40°C; 10A output; 2x5A input) 553000 hours
(at 40°C; 10A output; 2x10A input) 355000 hours
(at 25°C; 20A output; 2x5A input) 1563000 hours
(at 25°C; 20A output; 2x10A input) 1003000 hours

60mVpp (20Hz...20MHz; 50Ω)

10050000h (at 40°C; 2x5A input; MTBF SN 29500 IEC 61709)
7895000h (at 40°C; 2x10A input; MTBF SN 29500 IEC 61709)
16777000h (at 25°C; 2x5A input; MTBF SN 29500 IEC 61709)
13403000h (at 25°C; 2x10A input; MTBF SN 29500 IEC 61709)
2030000h (at 40°C; 2x5A input; MTBF MIL HDBK 217F GB40)
1890000h (at 40°C; 2x10A input; MTBF MIL HDBK 217F GB40)
2801000h (at 25°C; 2x5A input; MTBF MIL HDBK 217F GB25)
2588000h (at 25°C; 2x10A input; MTBF MIL HDBK 217F GB25)
441000h (at 40°C; 2x5A input; MTBF MIL HDBK 217F GF40)
404000h (at 40°C; 2x10A input; MTBF MIL HDBK 217F GF40)
604000h (at 25°C; 2x5A input; MTBF MIL HDBK 217F GF25)
548000h (at 25°C; 2x10A input; MTBF MIL HDBK 217F GF25)