PIRD20.241 Datasheet, PDF (14/15 Pages) PULS GmbH – DC 12-28V, 20A, DUAL INPUT REDUNDANCY MODULE

PIANO-Series
PIRD20.241
DC 12-28V, 20A, DUAL INPUT REDUNDANCY MODULE
17.3. INDUCTIVE AND CAPACITIVE LOADS
The unit is designed to supply any kind of loads, including unlimited capacitive and inductive loads.
17.4. USE IN A TIGHTLY SEALED ENCLOSURE
When the redundancy module is installed in a tightly sealed enclosure, the temperature inside the enclosure will be
higher than outside. The inside temperature defines the ambient temperature for the redundancy module.
Results from such an installation:
Power supply is placed in the middle of the box, no other heat producer inside the box
Enclosure:
Load:
Input:
Temperature inside enclosure:
Temperature outside enclosure:
Temperature rise:
Rittal Typ IP66 Box PK 9516 100, plastic, 110x180x165mm
24V, 16A; (=80%) load is placed outside the box
2x 24Vdc, 8A
42.4°C (in the middle of the right side of the power supply with a distance of 2cm)
23.1°C
19.3K
17.5. EXAMPLE: REDUNDANCY FOR CONTROLS
The example shows a cost effective solution to get redundant power for a PLC or controller system.
In many cases, two power supplies are used; one for the demanding loads and another one for the controls and
sensitive loads. The power supply for the demanding loads can be used as a redundant source to supply the controls.
Traditional approach:
PS1
PS2
Load
Improved approach:
PLC
PS1
Load
PS2
PIRD20
PLC
Sep. 2016 / Rev. 1.0 DS-PIRD20.241
All parameters are specified at 24V, 20A output current, 25°C ambient and after a 5 minutes run-in time unless otherwise noted
www.pulspower.com Phone [phone] Germany
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