Pepperl Fuchs Switch Amplifier KFD2-SR2-Ex2.W  

2-channel isolated barrier

24 V DC supply (Power Rail)

Dry contact or NAMUR inputs

Relay contact output

Line fault detection (LFD)

Reversible mode of operation

Up to SIL 2 (SC 3) acc. to IEC/EN 61508

General specifications

Signal type    Digital Input

Functional safety related parameters

Safety Integrity Level (SIL)    SIL 2

Systematic capability (SC)    SC 3

Supply

Connection    Power Rail or terminals 14+, 15-

Rated voltage    19 ... 30 V DC

Ripple    ≤ 10 %

Rated current    ≤ 50 mA

Power dissipation    ≤ 1 W

Power consumption    ≤ 1 W

Input

Connection side    field side

Connection    terminals 1+, 2+, 3-; 4+, 5+, 6-

Rated values    acc. to EN 60947-5-6 (NAMUR)

Open circuit voltage/short-circuit current    approx. 8 V DC / approx. 8 mA

Switching point/switching hysteresis    1.2 ... 2.1 mA / approx. 0.2 mA

Line fault detection    breakage I ≤ 0.1 mA , short-circuit I > 6 mA

Pulse/Pause ratio    min. 20 ms / min. 20 ms

Output

Connection side    control side

Connection    output I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12

Output I, II    signal, relay

Contact loading    250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 40 V DC/2 A resistive load

Minimum switch current    2 mA / 24 V DC

Energized/De-energized delay    approx. 20 ms / approx. 20 ms

Mechanical life    107 switching cycles

Collective error message    Power Rail

Transfer characteristics

Switching frequency    ≤ 10 Hz

Galvanic isolation

Input/Output    reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Input/power supply    reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Output/power supply    reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Output/Output    reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff

Indicators/settings

Display elements    LEDs

Control elements    DIP switch

Configuration    via DIP switches

Labeling    space for labeling at the front

Directive conformity

Electromagnetic compatibility    

Directive 2014/30/EU    EN 61326-1:2013 (industrial locations)

Low voltage    

Directive 2014/35/EU    EN 61010-1:2010+A1:2019+A1:2019/AC:2019

Conformity

Electromagnetic compatibility    NE 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018

Degree of protection    IEC 60529:1989+A1:1999+A2:2013

Functional safety    IEC/EN 61508:2010

Input    EN 60947-5-6:2000

Ambient conditions

Ambient temperature    -40 ... 70 °C (-40 ... 158 °F)

Mechanical specifications

Degree of protection    IP20

Connection    screw terminals

Mass    approx. 150 g

Dimensions    20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2

Height    119 mm

Width    20 mm

Depth    115 mm

Mounting    on 35 mm DIN mounting rail acc. to EN 60715:2001

Data for application in connection with hazardous areas

EU-type examination certificate    PTB 00 ATEX 2080

Marking    Ex-Hexagon II (1)G [Ex ia Ga] IIC

Ex-Hexagon II (1)D [Ex ia Da] IIIC

Ex-Hexagon I (M1) [Ex ia Ma] I

Input    Ex ia

Voltage    10.5 V

Current    13 mA

Power    34 mW (linear characteristic)

Supply    

Maximum safe voltage    253 V AC / 125 V DC (Attention! Um is no rated voltage.)

Output    

Maximum safe voltage    253 V AC (Attention! The rated voltage can be lower.)

Fault indication output    

Maximum safe voltage    40 V DC (Attention! Um is no rated voltage.)

Certificate    PF 08 CERT 0803

Marking    Ex-Hexagon II (3)G [Ex ic Gc] IIC

Input    Ex ic

Voltage    10.5 V

Current    13 mA

Power    34 mW (linear characteristic)

Certificate    TÜV 99 ATEX 1493 X

Marking    Ex-Hexagon II 3G Ex ec nC IIC T4 Gc

Galvanic isolation    

Input/Output    safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

Input/power supply    safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V

Directive conformity    

Directive 2014/34/EU    EN IEC 60079-0:2018+AC:2020 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 , EN IEC 60079-15:2019

International approvals

FM approval    

FM certificate    FM19US0207X

Control drawing    116-0035

UL approval    E106378

Control drawing    116-0473 (cULus)

Contact loading    250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 30 V DC/2 A resistive load