Serviceline Industrial Sensors
Serviceline Explosion Protection

Relay Module KFD0-RSH-1.1D.F1

  • 1-channel signal conditioner
  • 24 V DC supply (loop powered)
  • Logic input 19 V DC ... 26.5 V DC, non-polarized
  • Relay contact output for de-energized to safe function
  • Test pulse immunity
  • Up to SIL 3 acc. to IEC 61508
  • Up to PL e 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  KFD0-RSH-1.1D.F1

General specifications
Signal typeDigital Output
Functional safety related parameters
Safety Integrity Level (SIL)SIL 3
Performance level (PL)PL e
Connectionloop powered
Rated voltage19 ... 30 V DC loop powered
Power dissipation< 1.5 W
Power consumption< 1.5 W
Connection sidecontrol side
ConnectionInput terminals 7, 8 ; test input terminals 9, 10, 11, 12
Pulse/Pause ratio150 ms / 150 ms
Test pulse lengthmax. 4 ms from DO card
Test inputsee Functional Safety Manual
Signal level0-signal: -5 ... 5 V
1-signal: 19 ... 26.5 V
Rated current0-signal: typ. 1.6 mA at 1.5 V DC; typ. 8 mA at 3 V DC (maximum leakage current DO card)
1-signal: ≥ 36 mA (minimum load current DO card)
Connection sidefield side
Connectionterminals 4, 5, 6
Contact loading253 V AC/5 A/cos φ 0.7; 30 V DC/5 A resistive load
253 V AC / 1/2 HP
Minimum switch current10 mA / 24 V DC
Energized/De-energized delay150 ms / 150 ms
Mechanical life5 x 106 switching cycles
Fuse rating2.5 A (scope of delivery)
max. 5 AT, recommended maximum utilization of the fuse: 80 %
Transfer characteristics
Switching frequency< 3 Hz
Galvanic isolation
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 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 62061:2005+AC:2010+A1:2013+A2:2015 , EN/ISO 13849-1:2015
Electromagnetic compatibilityNE 21:2012 , EN 61326-3-1:2008 , EN 61326-3-2:2008
Degree of protectionIEC 60529:2013
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Observe the temperature range limited by derating, see section derating.
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 120 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
CertificatePF 15 CERT 3933 X
MarkingEx-Hexagon II 3G Ex nC ec IIC T4 Gc [device in zone 2]
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-7:2015 , EN 60079-15:2010
International approvals
UL approvalE106378
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see

Documents: KFD0-RSH-1.1D.F1

ManualsLanguageFile TypeFile Size
Functional Safety ManualENGPDF395 KB
Manual Signal Conditioners K-SystemENGPDF694 KB
Handbuch Funktionale SicherheitGERPDF398 KB
Handbuch Signaltrenner K-SystemGERPDF698 KB
Manual Signal Conditioners K-SystemRUSPDF3736 KB
Instruction manuals
ИнструкцииBULPDF135 KB
Návod k poużitíCZEPDF130 KB
Instruktions manualDANPDF129 KB
Instruction manualENGPDF134 KB
KasutusjuhendESTPDF126 KB
KäyttöohjeFINPDF126 KB
Manuel d'instructionsFRAPDF131 KB
BetriebsanleitungGERPDF136 KB
Οδηγίες χρήσηςGREPDF138 KB
HandleidingHOLPDF130 KB
Instruction manual / BetriebsanleitungHRVPDF130 KB
Használati útmutatóHUNPDF132 KB
Manuale di istruzioniITAPDF129 KB
Lietošanas pamācībaLAVPDF129 KB
Instrukciju vadovasLITPDF129 KB
Instrukcja obsługiPOLPDF132 KB
Manual de instruçõesPORPDF130 KB
Manual de utilizareRONPDF130 KB
Návod na poużitieSLKPDF130 KB
Navodila za uporaboSLVPDF128 KB
Manual de instruccionesSPAPDF130 KB
ManualSWEPDF127 KB

Approvals+Certificates: KFD0-RSH-1.1D.F1

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2541BPDF84 KB
Canada UL cULE106378 cUL (QUZW7)LINK---
Europe Pepperl+Fuchs ATEX Category 3 GPF 15 CERT 3933 XPDF225 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378CoC 20170828 - E106378 RepRef 20170825PDF401 KB
Worldwide TUV Rheinland Functional Safety Certificate968/FSP 1255.00/16 ENPDF678 KB

Function: KFD0-RSH-1.1D.F1

This signal conditioner provides the galvanic isolation between field circuits and control circuits.

The device is a relay module that is suitable for safely switching applications of a load circuit. The device isolates load circuits up to 230 V and the 24 V control circuit.

The de-energized to safe (DTS) function is permitted for SIL 3 and PL e applications.

The relays are of diverse design, but have a common effect on the individual switching output.

For testing of the relays, test terminals can be used. The test mode will be indicated by a LED according to NAMUR NE44.

The output is protected against contact welding by a fuse.

K-System Safety Relays

Pepperl+Fuchs is setting a new level of reliability with newly developed safety relays. With multi-redundant switching contacts, the interface module from the tried-and-tested K-System provides reliable and safety-related activation and deactivation for applications in accordance with IEC61508 up to SIL 3.