Product Description
The YR40.242 is a redundancy module, which can be used to build 1+1 and N+1 redundant system. 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. 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.

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

Order Numbers
Redundancy Module
YR40.242 12-28V Standard unit

Accessory
ZM2.WALL Wall/ panel mount bracket
ZM11.SIDE Side mount bracket