YR40.2420 pages

YR40.242
12-28V, 40A, DUAL REDUNDANCY MODULE

Y-Series

MOSFET REDUNDANCY MODULE
For N+1 and 1+1 Redundant Systems
Dual Input with Single Output
Suitable for all DIMENSION Power Supplies
Except QT20 and QTD20 Series
Only 72mV Voltage Drop at 20A Output Current
Only 1.7W Loss at 20A and 5.9W at 40A Output Current
160% (65A) Peak Load Capability
Reverse Input Polarity Protection
Full Power Between -40°C and +60°C
Width only 36mm
Rugged Metal Housing
Easy Wiring:
Distribution Terminal for Negative Pole Included
3 Year Warranty

GENERAL DESCRIPTION

SHORT-FORM DATA

The YR40.242 is a redundancy module, which can be
used to build 1+1 and N+1 redundant systems. It is
equipped with two input channels, which can be
connected to power supplies with up to 20A output
current and one output, which can carry nominal
currents up to 40A. In addition to the YR40.242, the
YR40.241 is also available. This unit has an additional
circuit included, which generates a supply voltage for
the internal mosfets even when the output of the unit is
in a short circuit condition. This makes the unit suitable
for any power supplies.

Input voltage
DC 12-28V
Input voltage range 8.4-36.4Vdc
Input current
2x 0-20A
2x 20-32.5A
Output current
0-40A
40-65A
max. 26A

The novelty of this redundancy module is the utilization
of mosfets instead of diodes for the decoupling of the
two 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 36mm 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.

ORDER NUMBERS

Input to output
voltage drop
Power losses

Temperature range
Derating
Dimensions **)
Weight

±30%

continuous
for 5 seconds
continuous
for 5 seconds
in overload*) or
short circuit mode
typ. 72mV
input: 2x10A
typ. 112mV
input: 1x20A
typ. 140mV
input: 2x20A
typ. 230mW
at no load
typ. 1.7W
input: 2x10A
typ. 2.4W
input: 1x20A
typ. 5.9W
input: 2x20A
-40°C to +70°C operational
1A/°C (output) +60 to +70°C
36x124x127mm WxHxD
280g, 0.62lb

*) Currents at voltages below 6V
**) Plus 4mm in depth for the screw terminal

MARKINGS

Redundancy
Module

YR40.242

12-28V Standard unit

Accessory

ZM2.WALL

Wall/ panel mount
bracket
Side mount bracket

IND. CONT. EQ.

ZM11.SIDE

UL 508

UL 60950-1

IECEx

ATEX
II 3G Ex nA IIC T4 Gc

Marine

Apr. 2014 / Rev. 1.1 DS-YR40.242-EN
All parameters are specified at 24V, 40A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone +49 89 9278 0

Germany

Class I Div 2

EMC, LVD

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