Serviceline Industrial Sensors
Serviceline Explosion Protection
Explosion Protection

Switch Amplifier KFU8-SR-Ex2.W

KFU8-SR-Ex2.W
  • 2-channel isolated barrier
  • 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

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Datasheet excerpt: Technical data of  KFU8-SR-Ex2.W

General specifications
Signal typeDigital Input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Systematic capability (SC)SC 3
Supply
Connectionterminals 14, 15
Rated voltage19 ... 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 sidefield side
Connectionterminals 1+, 2+, 3-; 4+, 5+, 6-
Rated valuesacc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit currentapprox. 8 V DC / approx. 8 mA
Switching point/switching hysteresis1.2 ... 2.1 mA / approx. 0.2 mA
Line fault detectionbreakage I ≤ 0.1 mA , short-circuit I > 6 mA
Pulse/Pause ratiomin. 20 ms / min. 20 ms
Output
Connection sidecontrol side
Connectionoutput I: terminals 7, 8, 9 ; output II: terminals 10, 11, 12
Output I, IIsignal ; relay
Contact loading250 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 current2 mA / 24 V DC
Energized/De-energized delayapprox. 20 ms / approx. 20 ms
Mechanical life107 switching cycles
Transfer characteristics
Switching frequency≤ 10 Hz
Galvanic isolation
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Input/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Indicators/settings
Display elementsLEDs
Control elementsDIP switch
Configurationvia DIP switches
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010+A1:2019+A1:2019/AC:2019
Conformity
Electromagnetic compatibilityNE 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018 , EN IEC 61326-1:2021 (industrial locations)
Degree of protectionIEC 60529:1989+A1:1999+A2:2013
InputEN 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 protectionIP20
Connectionscrew terminals
Massapprox. 150 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2
Height119 mm
Width20 mm
Depth115 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateFIDI 22 ATEX 0029 X
MarkingEx-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
InputEx ia
Voltage10.5 V
Current13 mA
Power34 mW (linear characteristic)
Supply
Maximum safe voltage253 V AC (Attention! Um is no rated voltage.)
Output
Maximum safe voltage253 V AC (Attention! The rated voltage can be lower.)
Galvanic isolation
Input/inputnot available
Input/Outputsafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supplysafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 2014/34/EUEN IEC 60079-0:2018 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 ,
EN IEC 60079-15:2019
International approvals
UL approvalE106378
Control drawing116-0489
Contact loading250 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
IECEx approval
IECEx certificateIECEx FIDI 22.0003X
IECEx markingEx ec nC [ia Ga] IIC T4 Gc , [Ex ia Da] IIIC , [Ex ia Ma] I
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

SystemClasscode
ECLASS 13.027210121
ECLASS 12.027210121
ECLASS 11.027210121
ECLASS 10.0.127210121
ECLASS 9.027210121
ECLASS 8.027210121
ECLASS 5.127210121
ETIM 9.0EC001485
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: KFU8-SR-Ex2.W

This isolated barrier is used for intrinsic safety applications. It transfers digital signals (NAMUR sensors/mechanical contacts) from a hazardous area to a safe area.

The proximity sensor or switch controls a form C changeover relay contact for the safe area load. The normal output state can be reversed using switches S1 and S2. Switch S3 is used to enable or disable line fault detection of the field circuit.

During an error condition, the relays revert to their de-energized state and the LEDs indicate the fault according to NAMUR NE44.

Datasheet: KFU8-SR-Ex2.W

DatasheetFile TypeFile Size
Datasheet KFU8-SR-Ex2.WPDF1145 KB
Fiche de données KFU8-SR-Ex2.WPDF1152 KB
Datenblatt KFU8-SR-Ex2.WPDF1144 KB
Datasheet KFU8-SR-Ex2.WPDF1225 KB
Hoja de datos KFU8-SR-Ex2.WPDF1155 KB

Documents: KFU8-SR-Ex2.W

ManualsFile TypeFile Size
ManualPDF3685 KB
HandbuchPDF3693 KB
Instruction manuals
ИнструкцииPDF172 KB
Instruction manual / BetriebsanleitungPDF327 KB
Návod k poużitíPDF166 KB
Instruktions manualPDF165 KB
Instruction manualPDF171 KB
KasutusjuhendPDF162 KB
KäyttöohjePDF161 KB
Manuel d'instructionsPDF168 KB
BetriebsanleitungPDF172 KB
Οδηγίες χρήσηςPDF175 KB
HandleidingPDF167 KB
Instruction manual / BetriebsanleitungPDF165 KB
Használati útmutatóPDF168 KB
Manuale di istruzioniPDF166 KB
Lietošanas pamācībaPDF166 KB
Instrukciju vadovasPDF166 KB
Instrukcja obsługiPDF167 KB
Manual de instruçõesPDF167 KB
Manual de utilizarePDF167 KB
Návod na poużitiePDF167 KB
Navodila za uporaboPDF164 KB
Manual de instruccionesPDF168 KB
ManualPDF163 KB
Application reports
Application Report - Biological Cleaning of Wastwater and Secondary Sedimentation StagePDF566 KB
Application Report - Energy Generation in Wastwater Treatment PlantsPDF532 KB
Application Report - Generating Electricity in Coal-Fired Power PlantsPDF412 KB
Application Report - Sand Trap and Preliminary Sedimentation StagePDF448 KB
Application Report - Screening Systems in Sewage Treatment PlantsPDF577 KB
Application Report - Sicherer Brennstofftransport in KohlekraftwerkenPDF391 KB
Application Report - Water Inlet in Wastewater Treatment PlantsPDF526 KB
Applikationsbericht - Biologische Abwasserreinigung und NachklärungPDF568 KB
Applikationsbericht - Energiegewinnung in KläranlagenPDF535 KB
Applikationsbericht - Rechenanlagen in KläranlagenPDF578 KB
Applikationsbericht - Sandfang und VorklärungPDF434 KB
Applikationsbericht - Sicherer Brennstofftransport in KohlekraftwerkenPDF393 KB
Applikationsbericht - Stromerzeugung in KohlekraftwerkenPDF416 KB
Applikationsbericht - Wasserzulauf in KläranlagenPDF527 KB
Documents
Functional Safety ManualPDF1996 KB
Handbuch funktionale SicherheitPDF2009 KB

CAD+CAE: KFU8-SR-Ex2.W

CADFile TypeFile Size
CAD 3-D / CAD 3-DSTP2510 KB
EPLAN
CAE EPLAN Data Portal / CAE EPLAN Data PortalLINK---
CAE EPLAN macro EDZ / CAE EPLAN Makro EDZEDZ1486 KB

Associated Products: KFU8-SR-Ex2.W

Accessories
3-pin screw terminal, For KF modules of K-System, Packaging unit: 5 pieces greenpa
3-pin screw terminal, For KF modules of K-System, Packaging unit: 5 pieces bluepa
Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa
General Notes Relating to Pepperl+Fuchs Product Information
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Pepperl+Fuchs SE
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
phone +49 621 776-0

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Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.