Serviceline Industrial Sensors
Serviceline Explosion Protection

Switch Amplifier KFD2-ST3-Ex2

KFD2-ST3-Ex2
  • 2-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Dry contact or NAMUR inputs
  • Active transistor output
  • Line fault detection (LFD)
  • Reversible mode of operation
  • 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.

Download the complete datasheet as a PDF:


Datasheet excerpt: Technical data of  KFD2-ST3-Ex2

General specifications
Signal typeDigital Input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Systematic capability (SC)SC 3
Supply
ConnectionPower Rail or terminals 14+, 15-
Rated voltage19 ... 30 V DC
Ripple≤ 10 %
Rated current20 ... 15 mA + Iout
Power dissipation≤ 900 mW including maximum power dissipation in the output
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. 10 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 ≥ 6.5 mA
Pulse/Pause ratiomin. 100 µs / min. 100 µs
Output
Connection sidecontrol side
Connectionoutput I: terminal 7+ ; output II: terminal 9+
Rated voltage30 V DC
Rated current100 mA
Response time≤ 200 µs
Signal level1-signal: (supply voltage) - 3 V max. for 100 mA
0-signal: blocked output (off-state current ≤ 10 µA)
Output Isignal ; Transistor
Output IIsignal ; Transistor
Collective error messagePower Rail
Transfer characteristics
Switching frequency≤ 5 kHz
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
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)
Conformity
Electromagnetic compatibilityNE 21:2012 , EN 61326-3-2:2008
Degree of protectionIEC 60529:2001
InputEN 60947-5-6:2000
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 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) , housing type B2
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateEXA 16 ATEX 0016 X
MarkingEx-Hexagon II 3(1)G Ex nA [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
Current17.1 mA
Power45 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/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+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
UL approvalE106378
Control drawing116-0424 (cULus)
IECEx approval
IECEx certificateIECEx EXA 16.0009X
IECEx markingEx nA [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 11.027210121
ECLASS 10.0.127210121
ECLASS 9.027210121
ECLASS 8.027210121
ECLASS 5.127210121
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC001485
UNSPSC 12.132101514

Documents: KFD2-ST3-Ex2

ManualsLanguageFile TypeFile Size
Functional Safety ManualENGPDF2007 KB
System Manual ENGPDF3524 KB
Handbuch Funktionale SicherheitGERPDF2020 KB
SystemhandbuchGERPDF3557 KB
Instruction manuals
Instruction manualENGPDF150 KB
BetriebsanleitungGERPDF151 KB

CAD+CAE: KFD2-ST3-Ex2

CADFile TypeFile Size
3-D model / 3-D-ModellSTP2510 KB
CAD Portal / CAD PortalLINK---
Prolist
Prolist device specification / Prolist GerätespezifikationXML342 KB

Approvals+Certificates: KFD2-ST3-Ex2

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2638APDF156 KB
Certificates
Canada UL cULE106378 cUL (QUZW7)LINK---
Canada UL cULE106378 cUL (QVAJ7)LINK---
China SITIIAS CCC Ex Certificate2020322316002751 (Singapore)PDF1251 KB
EAC EAC TP TC 012/2011TC RU C-DE.AA71.B.00291PDF2516 KB
EAC Pepperl+Fuchs EAC TP TC 020/2011EAEC N RU D-DE.PA01.B.95500/21PDF748 KB
Europe EXA ATEXEXA 16 ATEX 0016 XPDF2049 KB
Korea KOSHA20-AV4BO-0493PDF165 KB
Korea KOSHA20-AV4BO-0492PDF163 KB
USA Canada cULus Certificate of Compliance ULCoC 20190517 - E106873 RepRef 20190514PDF253 KB
USA ULE106378 UL (QVAJ)LINK---
USA ULE106378 UL (QUZW)LINK---
Worldwide EXA Certificate of ConformityIECEx EXA 16.0009XLINK---
Worldwide exida Functional Safety AssessmentP+F 1408-047-C R039 Assessment Report V1 R1PDF1125 KB
Control drawings
Control Drawing UL / Control Drawing UL   PDF129 KB

Associated Products: KFD2-ST3-Ex2

Matching System Components

Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa

35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa

35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa
35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 1.6 m (5 foot), simple to customize to application space, Eliminates daisy-chainspa
Cable trunking is integrated in the mounting profile, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Standard length 1.8 m (5.8 ft), simple to customize to application space, With mounting aidspa
Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa
Accessories
1-channel, Dry contact input, For line fault detection (LFD)pa
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

Function: KFD2-ST3-Ex2

This isolated barrier is used for intrinsic safety applications.

The device transfers digital signals (NAMUR sensors or dry contacts) from a hazardous area to a safe area.

Each input controls an active transistor output.

Via switches the mode of operation can be reversed and the line fault detection can be switched off.

A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.