204136 – Pepperl+Fuchs

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KFU8-SR-Ex2.W Switch Amplifier 2channel isolated “P+F”

Universal usage at different power supplies
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

Signal type Digital Input
Functional safety related parameters
Safety Integrity Level (SIL) SIL 2
Systematic capability (SC) SC 3
Supply
Connection terminals 14, 15
Rated voltage 19 … 30 V DC / 90 … 253 V AC 50 … 60 Hz
Power dissipation/power consumption = 1.3 W / = 1.3 W ; 3.6 VA
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 f > 0.75; 126.5 V AC/4 A/cos f > 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
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 , EN IEC 61326-1:2021 (industrial locations)
Degree of protection IEC 60529:1989+A1:1999+A2:2013
Input EN 60947-5-6:2000
Ambient conditions
Ambient temperature -40 … 60 °C (-40 … 140 °F)
extended ambient temperature range up to 70 °C (158 °F), refer to manual for necessary mounting conditions
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
Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate FIDI 22 ATEX 0029 X
Marking Ex-Hexagon II 3(1)G Ex ec nC [ia Ga] IIC T4 Gc
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 (Attention! Um is no rated voltage.)
Output
Maximum safe voltage 253 V AC (Attention! The rated voltage can be lower.)
Galvanic isolation
Input/input not available
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 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 ,
EN IEC 60079-15:2019
International approvals
UL approval E106378
Control drawing 116-0489
Contact loading 250 V AC/2 A/cos f > 0.75; 126.5 V AC/4 A/cos f > 0.75; 30 V DC/2 A resistive load
IECEx approval
IECEx certificate IECEx FIDI 22.0003X
IECEx marking Ex ec nC [ia Ga] IIC T4 Gc , [Ex ia Da] IIIC , [Ex ia Ma] I
General information
Supplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.
Classifications
System Classcode
ECLASS 11.0 27210121
ECLASS 10.0.1 27210121
ECLASS 9.0 27210121
ECLASS 8.0 27210121
ECLASS 5.1 27210121
ETIM 8.0 EC001485
ETIM 7.0 EC001485
ETIM 6.0 EC001485
ETIM 5.0 EC001485
UNSPSC 12.1 32101514