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 or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

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
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see


ECLASS 11.027210101
ECLASS 10.0.127210101
ECLASS 9.027210101
ECLASS 8.027210101
ECLASS 5.127210121
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC001485

Documents: KFD0-RSH-1.1D.F1

ManualsLanguageFile TypeFile Size
Functional Safety ManualENGPDF395 KB
System Manual ENGPDF3489 KB
Handbuch Funktionale SicherheitGERPDF398 KB
SystemhandbuchGERPDF3506 KB
Instruction manuals
Instruction manualENGPDF136 KB
BetriebsanleitungGERPDF138 KB


CADFile TypeFile Size
3-D model / 3-D-ModellSTP2510 KB

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

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-5026PDF70 KB

Associated Products: KFD0-RSH-1.1D.F1

Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa

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.