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PS3500 Power Supply Module KFD2-SCD-EX1.LK

N+1 redundancy provides highest reliability

Diagnostics and fault indication

Modular and hot swappable

Automatic load sharing

Adjustable voltage

Fanless

ATEX, IECEx, and cULus approvals for Div 2/Zone 2

Features

1 N+1 redundancy provides highest reliability

2 Diagnostics and fault indication

3 Modular and hot swappable

4 Automatic load sharing

5 Adjustable voltage

6 Fanless

7 ATEX, IECEx, and cULus approvals for Div 2/Zone 2

Function

The KFD2-SCD-EX1.LK power supply module works with the

PS2500/PS3500 series backplanes. The power supply is well

suited for emergency shut down systems, fieldbus / HART

networks, as well as any general-purpose process

applications.

Each 24 V, 15 A module plugs directly into a 3- or 6-position

backplane allowing a maximum capacity of 45 A or 90 A of

uninterrupted power. The output voltage is adjustable from

22.5 V to 30 V DC via potentiometers on the backplane.

Universal input power is standard and allows a battery

backup, eliminating the need for a UPS connection. The

power supply modules are highly efficient (up to 91%) and use

natural convection cooling.

Each module operates with automatic load sharing, so

modules are hot swappable with no effect on the output

supply.

Technical data

Interface

Type diagnostic bus: RS 485

Input current max 6.5 A

Inrush current < 50 A peak for 50 μs

Voltage 90 ... 250 V AC, 44 ... 66 Hz; 90 ... 300 V DC

Output

Current 15 A

Voltage 24 V DC ± 1 %

(22.5 ... 30 V DC adjustable)

Ripple 35 mV rms (< 100 mV pp)

Fault signal relay

50 V DC @ 0.6A

30 V DC @ 2A

Response time min. hold-up time: ≥ 25 ms at nominal input voltage and output load

Short-circuit current ≤ 20 A

Efficiency up to 91 %

Galvanic isolation

Input/Output 4.25 kV DC

Indicators/settings

Display elements LED Power, green: power on

LED Fault, red: fault indication

LED Alarm, red: module shut-down

Directive conformity

Electromagnetic compatibility Refer to DoC for all directives and standards met.

Conformity

Galvanic isolation IEC 61131-2

Electromagnetic compatibility NE 21:2006

Degree of protection EN 60529

Shock resistance EN 60068-2-27

Vibration resistance EN 60068-2-6

Ambient conditions

Ambient temperature -25 ... 45 °C (-13 ... 113 °F) , derated: 0,4 A/°C, (from 45 ... 70 °C (113 ... 158 °F))

Storage temperature -40 ... 85 °C (-40 ... 185 °F)

Relative humidity < 95 % , noncondensing

Shock resistance 15 g , 11 ms

Vibration resistance 1 g , 58 ... 150 Hz

Mechanical specifications

Housing material Powder Coated, 1010 Cold Rolled Steel

Degree of protection IP20

Mass approx. 1.8 kg ( 4.125 lbs )

Dimensions 134 x 62 x 268 mm (5.3 x 2.5 x 10.6 inch)

Data for application in connection

with hazardous areas

Certificate DEMKO 12 ATEX 1103387X

Marking ? II3 G Ex nA nC IIC T4 Gc

International approvals

UL approval cULus Listed

E230669

E350173

Approved for Class I/Div 2, ABCD

Class I, Zone 2, Grp IIC T4

IECEx approval IECEx UL 13.0082X

Ex nA nC IIC T4 Gc

General information

Supplementary information Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be

observed where applicable. For information see www.pepperl-fuchs.com.

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