Serviceline Industrial Sensors
Serviceline Explosion Protection

Switch Amplifier KFD2-SH-Ex1

  • 1-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Input for approved dry contacts or SN/S1N sensors
  • Relay contact output
  • Fault indication output
  • Line fault detection (LFD)
  • Up to SIL 3 acc. to IEC 61508
  • Up to PL d acc. to EN/ISO 13849

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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  KFD2-SH-Ex1

Product Description
24 V DC
General specifications
Signal typeDigital Input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Performance level (PL)PL d
ConnectionPower Rail or terminals 22+, 23+, 24-
Rated voltage20 ... 35 V DC
Ripple≤ 10 %
Rated current≤ 130 mA
Power dissipation2.1 W
Power consumptionmax. 2.3 W
Connection sidefield side
Connectionterminals 10+, 12-
Open circuit voltage/short-circuit currentapprox. 8.4 V DC / approx. 11.7 mA
Lead resistance≤ 50 Ω, in hazardous area cable capacitances and inductivities are to be taken into account
Switching point
Relay de-energizedI < 2.1 mA and I > 5.9 mA
Relay energized2.8 mA < I < 5.3 mA
Response delay≤ 1 ms
Connection sidecontrol side
Connectionoutput I: terminals 13, 14 ; output II: terminals 15, 21 ; output III: terminals 16+, 17-
Output Irelay , signal
Contact loading50 V AC/1 A/cos φ > 0.7; 24 V DC/1 A resistive load
Mechanical life50 x 106 switching cycles
Output IIrelay , signal
Contact loading50 V AC/1 A/cos φ > 0.7; 24 V DC/1 A resistive load
Mechanical life50 x 106 switching cycles
Output IIIelectronic output, passive , fault signal
Rated voltage10 ... 30 V DC
Signal level1-signal: (L+) -2.5 V (7 mA, short-circuit proof) / 0-signal: blocked output
(Leakage current ≤ 10 mA)
Transfer characteristics
Switching frequency5 Hz
Galvanic isolation
Output/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Mutual output I, II, IIIbasic insulation according to IEC/EN 61010-1, rated insulation voltage 50 Veff
Display elementsLEDs
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
Machinery Directive
Directive 2006/42/ECEN/ISO 13849-1:2008
Electromagnetic compatibilityNE 21:2011
Degree of protectionIEC 60529:2001
SafetyIEC/EN 61508:2010
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 280 g
Dimensions40 x 107 x 115 mm (1.6 x 4.2 x 4.5 inch) , housing type C1
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-Type Examination CertificatePTB 00 ATEX 2042
MarkingEx-Hexagon II (1)GD [EEx ia] IIC [circuit(s) in zone 0/1/2]
InputEEx ia IIC
Voltage9.56 V
Current16.8 mA
Power41 mW (linear characteristic)
Maximum safe voltage40 V AC/DC (Attention! The rated voltage can be lower.)
Maximum safe voltageoutput I/output II: 253 V AC/DC (Attention! Um is no rated voltage.)
output III: 60 V AC/DC (Attention! Um is no rated voltage.)
CertificateTÜV 99 ATEX 1493 X
MarkingEx-Hexagon II 3G Ex nA nC IIC T4
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 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
Control drawing116-0158
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see

Documents: KFD2-SH-Ex1

ManualsLanguageFile TypeFile Size
Manual Isolated Barriers K-systemENGPDF760 KB
Original Instructions/Functional Safety ManualENGPDF660 KB
Manuel pour Barrières Isolées de Système KFRAPDF759 KB
Handbuch Trennbarrieren K-SystemGERPDF745 KB
Originalbetriebsanleitung/Handbuch Funktionale SicherheitGERPDF663 KB
Manual Isolated Barriers K-systemRUSPDF4107 KB
Instruction manuals
ИнструкцииBULPDF69 KB
Návod k poużitíCZEPDF61 KB
Instruktions manualDANPDF58 KB
Instruction manualENGPDF50 KB
KasutusjuhendESTPDF56 KB
KäyttöohjeFINPDF56 KB
Manuel d'instructionsFRAPDF97 KB
BetriebsanleitungGERPDF62 KB
Οδηγίες χρήσηςGREPDF73 KB
HandleidingHOLPDF72 KB
Instruction manual / BetriebsanleitungHRVPDF70 KB
Használati útmutatóHUNPDF71 KB
Manuale di istruzioniITAPDF93 KB
Lietošanas pamācībaLAVPDF68 KB
Instrukciju vadovasLITPDF68 KB
Instrukcja obsługiPOLPDF72 KB
Manual de instruçõesPORPDF72 KB
Manual de utilizareRONPDF71 KB
Návod na poużitieSLKPDF130 KB
Manual de instruccionesSPAPDF95 KB

Approvals+Certificates: KFD2-SH-Ex1

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0075CPDF109 KB
China NEPSIGYJ 15.1114PDF2707 KB
EAC EAC TP TC 020/2011TC RU C-DE.MH04.B.00397PDF680 KB
Europe PTB ATEX Category (1) GDPTB 00 ATEX 2042PDF573 KB
Europe TUV Nord ATEX Category 3 GTÜV 99 ATEX 1493XPDF1702 KB
Japan TIISTC 16173PDF558 KB
Russia Belarus EAC Kazakhstan NANIO "CCVE" EAC TP TC 012/2011TC RU C-IT.GB05.B.00718PDF2731 KB
TÜV SÜD Functional Safety AssessmentPM85769TPDF1092 KB
USA FMFM Listed (Approval Guide)LINK---
Control drawings
Control Drawing FM / Control Drawing FM   PDF71 KB