PULS PIRD20.241 User guide

EN

PIR-01

PIRD20.241

Instruction Manual

Before operating the redundancy module, read this manual thoroughly and retain it for future reference! This device
may only be installed and put into operation by qualified personnel. If damage or malfunction should occur during
operation, immediately turn power off and send unit to the factory for inspection. The unit does not contain serviceable
parts.

This redundancy module is designed for installation in an enclosure and is intended for general use such as in industrial
control, office, communication, and instrumentation equipment. Do not use this device in equipment, where malfunction
may cause severe personal injury or threaten human life.

Risk of electrical shock, fire, personal injury or death:

(1) Turn power off before working on the device. Protect against inadvertent re-powering.
(2) Make sure that the wiring is correct by following all local and national codes.
(3) Do not open, modify or repair the unit
(4) Use caution to prevent any foreign objects from entering the housing.
(5) Do not use in wet locations or in areas where moisture or condensation can be expected.
(6) Do not touch during power-on, and immediately after power-off. Hot surfaces may cause burns.

Installation Notes

- Install the device on a DIN-rail according to EN 60715 with the output terminals on the bottom of the unit.

- Do not obstruct air flow as the unit is convection cooled.
Ventilation grid must be kept free of any obstructions (min. 40mm on top, 20mm on the bottom, 5mm left and right
side).

- Do not place heat sources adjacent to the device.

- Do not energize with wrong input polarity. Device might get damaged.

- Do not ground or earth the positive output pole which could prevent redundancy in case of a ground failure. Ground
the negative output pole when needed.

Typical Wiring Scheme
1+1 Redundancy for 10A Output Current

Headquarters: PULS GmbH, Elektrastr. 6, 81925 Munich, Germany www.pulspower.com

Germany [phone] www.pulspower.de
China [phone] www.pulspower.cn
France [phone] www.pulspower.fr
Austri a [phone] www.pulspower.at

Dual Input Redundancy Module
DC 12-28V, 20A

Failure

+ +

- -

24-28V

DC-OK

DC­OK

Power Supply

L N PE

I

L
N

PE

Singapore [phone] www.pulspower.sg
Switzerland [phone] www.pulspower.ch
U.K. [phone] www.pulspower.co.uk
U.S.A [phone] www.pulspower.us

- -

Redundancy
Module

OUT

24V, 10A

Load

+ +

+ +

IN

IN

1

2

Power Supply

+ + -

L N PE

I

24-28V

DC-OK

DC­OK

Monitor

- -

Technical Data

1)

PIRD20.241

Number of inputs / outputs 2/1
Decoupling Element Diode
Suitable Power Supplies PIC120 series and PIC 240 series
Input Voltage nom. DC 12-28V
Input Voltage Range 9-35Vdc
Output Current nominal nom. 0-20A

up to 5 seconds max. 20-32A
overload, short-circuit2) max. 26A
Input Current nominal nom. 2x 0-10A or 1x 0-20A
up to 5 seconds max. 2x 10-16A or 1x 32A
overload, short-circuit 2) max. 2x 13A or 1x 26A

Peak Input Current per input max. 1000A per input
Reverse Current per input max. 4mA between -25°C and +60°C

±25%

Voltage Drop Input to Output typ. 0.46V at 2x 5A symmetrical input current
Power Losses in normal mode typ. 4.6W at 2x 5A symmetrical input current

at no load typ. 0W

Operational Temperature Range
Output Derating nom. 0.5A/°C from 55°C to +70°C
Storage Temperature Range nom. -40°C - +85°C

4)

Terminals

AWG
Wire stripping length
Tightening torque

Dimensions (WxHxD, without DIN-rail) nom. 39x124x124mm
Weight max. 280g, 0.62lb

1) All param eters are specified at 24V input, nominal output cur rent, 25°C ambient and after a 5 minutes run-in t ime unless otherwise noted.

2) Ensure that t he average output current does not exceed this value. Check the short-circuit current of the po wer sources and if the power

3) The operat ional temperature range equals the surroun ding air temperature measured 2cm below the u nit.

4) Use appropr iate copper cables, that are designed for a m inimum operating temperature of 75°C for am bient temperatures up to 55°C and

PU-427.010.00-xxB

Stranded / solid wire

source can deliver more than this cur rent combined, use an appropriate fuse on the o utput.

90°C for ambient temperatures up to 70°C.
Follow national installation c odes and regulations! Ensure that all strands of a stranded wire enter the terminal.

3)

nom. -40°C - +70°C

nom.
nom.
nom.
nom.

The information presented in this docum ent is believed to be accurate and may change without notice.

max. 4mm2 / max. 6mm

20-10AWG

7mm, 0.28inch

1Nm, 9lb.in

2