Overview

PS9401-2420-0000 | Redundancy module 12–28 V, 20 A

Overview 1:

  • For N+1 and 1+1 redundant systems
  • Dual input with single output
  • Only 60 mV voltage drop with 10 A output current
  • Only 0.6 W loss with 10 A
  • Protection against reverse input polarity
  • Full power between -40 °C and +70 °C
  • Width only 32 mm
  • Robust metal housing

The PS9401-2420-0000 is a redundancy module that can be used to set up 1+1 and N+1 redundant systems. It has two input channels, to which power supplies with output currents of up to 10 A can be connected, and one output that can carry nominal currents of up to 20 A. The output can also be used up to 24 A if the ambient temperature is < +45 °C.

The module is suitable for power supplies with a constant current overload behavior as well as for any type of intermittent overload behavior.

The redundancy module uses MOSFET technology instead of diodes for decoupling the two input channels. This reduces the heat development and the voltage drop between input and output.

Due to the low power loss, the device is very narrow and requires a width of just 32 mm on the DIN rail. Large connection terminals enable secure and fast installation. The redundancy module requires no additional auxiliary voltage. Due to the international approvals package, the device is suitable for virtually every application.

Overview of technical data *)

Overview of technical data

PS9401-2420-0000

Input voltage

DC 12-28 V (±30 %)

Input voltage range

8.4-36.4Vdc

Input current

2x 12 A, below +45 °C ambient temperature

2x 10 A, at +70 °C ambient temperature

2x 16 A, up to 5 s

Linear derating between +45 °C and 70 °C

Output current

24 A, below +45 °C ambient temperature

20 A, at +70 °C ambient temperature

32 A, up to 5 s

Maximum output current below 6 Vdc

26 A rms, in every overload or short-circuit state

Voltage drop between input and output

60 mV, with 2x 5 A input

110 mV, with 2x 10 A input

Power loss

0.21 W, with no load

0.6 W, with 2x 5 A input

2.0 W, with 2x 10 A input

Temperature range

-40 °C to + 70 °C

Dimensions (W x H x D)

32 x 124 x 117 mm, without DIN rail

Weight

250 g

*) All values typical with 24 Vdc input voltage, 20 A output current, 25 °C ambient temperature and after a running-in time of 5 minutes, unless specified otherwise.