PULS
YR20.246
Redundancy Modules
Available from stockArticle no.:A106.206
The PULS YR20.246 is an advanced MOSFET redundancy module for 24 V DC systems up to 20 A. It combines efficient decoupling with automatic load sharing and monitors both redundancy and load-sharing operation. Low voltage drop and power losses reduce heat generation, while Load Share OK and Redundancy OK signals enable straightforward status monitoring. Equipped with screw terminals for reliable installation.
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Technical specifications
Output
Voltage
24 ~ 28 VDC
Current
20 A @ 24 VDC
Input
DC Voltage
18 ~ 35 VDC
Extra
Key quality marks
UL508IEC60950ATEX - IECex
Diagnostics
Load Share OKRedundancy OK
Connectors
Screw terminals
Dimensions (WxHxD)
32 x 124 x 117 mm
Weight
310g
Description
The YR20.246 is a redundancy module for building redundant power supply systems. It is equipped with two input channels and one output. The two inputs are decoupled by MOSFET technology.
The device is equipped with an automated load sharing feature, which can compensate a small voltage imbalance between the power supplies connected to the inputs in order to achieve an even current share. It also monitors the function of the redundancy circuitry and provides a signal in case of a failure or a high output current, which could prevent redundancy if one power supply fails. If this feature is not required, the YR20.242 is available.
The redundancy utilizes 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 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
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