QT40.481

Q-Series

The YR40.482 is equipped with two input channels (20A each), which are individually

decoupled by utilizing mosfet technology. The output current can go as high as 40A.

Using mosfets instead of diodes reduces the heat generation and the voltage drop between

input and output.

The YR40.482 does not require an additional auxiliary voltage and is self-powered even in

case of a short circuit across the output.

Due to the low power losses, the unit is very slender and only requires 46mm width on the

DIN-rail.

Fig. 23-1 Typical 1+1 Redundant configuration for 20A with a dual redundancy module

48V

20A

Load

Failure

Monitor

L1 L2 L3 PE

+ +

- -

48V, 20A

Parallel Use

Single Use

DC-

OK

QT40.481

48V Power Supply

I

I

I

I

I

I

21/28

L1

L2

PE

L3

YR40.482

Redundancy

Module

Input

1

Input

2

Output

+

+

-

L1 L2 L3 PE

+ +

- -

48V, 20A

Parallel Use

Single Use

DC-

OK

QT40.481

48V Power Supply

Dec. 2015 / Rev. 2.3 DS-QT40.481-EN

All parameters are specified at 48V, 20A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0

Germany