Serviceline Industrial Sensors
Serviceline Explosion Protection

Resistance Repeater KCD2-RR2-Ex1.SP

  • 1-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Resistance and RTD input (Pt100, Pt500, Pt1000)
  • Resistance output
  • Accuracy 0.1 %
  • Line fault detection (LFD) for Pt100
  • Housing width 12.5 mm
  • Connection via spring terminals with push-in connection technology
  • Up to SIL 2 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  KCD2-RR2-Ex1.SP

General specifications
Signal typeAnalog input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
ConnectionPower Rail or terminals 9+, 10-
Rated voltage19 ... 30 V DC
Ripplewithin the supply tolerance
Rated current< 28 mA
Power consumption0.35 W (24 V and 1 mA sense current), 0.85 W (30 V and 10 mA sense current)
Connection sidefield side
Connectionterminals 1, 2, 3, 4
Line fault detectionyes , at Pt100
Lead resistance≤ 10 % of resistance value
Transmission range0 ... 10 mA
Available voltage7 V
Line fault detection< 30 nA
Connection sidecontrol side
Connectionterminals 5-, 7-, 6+, 8+
Current0 ... 10 mA
Available voltage0 ... 4.2 V
Fault signalfield voltage < 150 mV or > 4 V, depending on lead disconnected
Reverse polarity protectionfor I < 10 mA or U < 20 V
Transfer characteristics
Accuracy0.1 %
DeviationIm ≥ 1 mA: ±0.1 % of Rm or ± 0.1 Ω (the larger value is applicable)
Im < 1 mA: accuracy reduces in proportion to Im.
e. g. Im = 0.1 mA: ± 1 % of Rm or 1 Ω (the larger value is applicable).
Influence of ambient temperatureIm ≥ 1 mA, Rm ≥ 100 Ω: 0.01 %/K in the range -20 ... +70 °C (-4 ... 158 °F)
Im < 1 mA or Rm < 100 Ω: temperature stability reduces in proportion to Im or Rm
Settling time≤ 5 ms
Rise time/fall time≤ 2 ms (10 ... 90%)
Galvanic isolation
Output/power supplyfunctional insulation, rated insulation voltage 50 V AC
Display elementsLED
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)
Electromagnetic compatibilityNE 21:2017
EN IEC 61326-3-2:2018
Degree of protectionIEC 60529:2001
Protection against electrical shockUL 61010-1:2012
Ambient conditions
Ambient temperature-40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Degree of protectionIP20
Connectionspring terminals
Massapprox. 100 g
Dimensions12.5 x 124 x 114 mm (0.5 x 4.9 x 4.5 inch) (W x H x D) , housing type A2
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateBASEEFA 10 ATEX 0061X
MarkingEx-Hexagon II (1)G [Ex ia Ga] IIC
Ex-Hexagon II (1)D [Ex ia Da] IIIC
Ex-Hexagon I (M1) [Ex ia Ma] I
Input[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Voltage9.5 V
Current39.22 mA
Power93 mW
Maximum safe voltage250 V (Attention! The rated voltage can be lower.)
Maximum safe voltage250 V (Attention! The rated voltage can be lower.)
CertificateBASEEFA 10 ATEX 0062X
MarkingEx-Hexagon II 3G Ex ec IIC T4 Gc
Galvanic isolation
Input/Outputsafe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
Input/power supplysafe electrical isolation acc. to IEC/EN 60079-11:2007, 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
International approvals
FM approval
FM certificateFM 19 CA 0039 X , FM 19 US 0067 X
Control drawing116-0457 (cFMus)
UL approvalE106378
Control drawing116-0332 (cULus)
IECEx approval
IECEx certificateIECEx BAS 10.0024X
IECEx BAS 10.0025X
IECEx marking[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I
Ex ec IIC T4 Gc
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see


ECLASS 11.027210120
ECLASS 10.0.127210120
ECLASS 9.027210120
ECLASS 8.027210120
ECLASS 5.127210120
ETIM 8.0EC002653
ETIM 7.0EC002653
ETIM 6.0EC002653
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: KCD2-RR2-Ex1.SP


This isolated barrier is used for intrinsic safety applications.

It transfers resistance values of RTDs or potentiometers from hazardous areas to safe areas.

A 2-, 3-, or 4-wire technique is available depending on the required accuracy.

The input card of the control system measures the same load as if it were connected directly to the resistance in a hazardous area.

Product Documentation: KCD2-RR2-Ex1.SP

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF172 KB
Functional Safety ManualENGPDF1412 KB
System Manual ENGPDF3673 KB

Design / Simulation: KCD2-RR2-Ex1.SP

Language Selection:
CADLanguageFile TypeFile Size
3-D model / 3-D-ModellALLSTP3085 KB
CAD Portal / CAD PortalALLLINK---
CAE EPLAN Data Portal / CAE EPLAN Data PortalALLLINK---
EPLAN macro P+F.KCD2-RR2-Ex1.SP.edz / EPLAN-Makro P+F.KCD2-RR2-Ex1.SP.edzALLEDZ1686 KB

Approvals: KCD2-RR2-Ex1.SP

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Baseefa IECEx Certificate of ConformityIECEx BAS 10.0024XALLLINK---
Baseefa Zone 2 IECEx Certificate of ConformityIECEx BAS 10.0025XALLLINK---
Brasil TUV Rheinland BrazilTÜV 14.1606XALLPDF616 KB
Canada FMFM19CA0039XALLPDF321 KB
Canada, USA UL Hazardous Location Certificate of Compliance cULus UL E106378CoC E106378 - RepRef E106378-20100413ALLPDF419 KB
China SITIIAS CCC Ex Certificate2020322316001401 (Singapore)ALLPDF1212 KB
Europe Baseefa II (1) D I (M1) II (1) GBaseefa 10 ATEX 0061XALLPDF3083 KB
Europe Baseefa II 3 G ATEX Category 3 GBaseefa 10 ATEX 0062XALLPDF2465 KB
India PESO (India) CCOEA/P/HQ/KA/104/5807 (P477252)ALLPDF542 KB
United Arab Emirates SGS Gulf Limited ECASEx22-09-51536/E22-09-051950ALLPDF849 KB
United Kingdom UKEX Category (1) G UK-Type Examination Certificate UKEX Category (M1) UKEX Category (1) DCML 21UKEX21109XALLPDF147 KB
Worldwide TUV Rheinland Functional Safety CertificateNo.: 968/FSP 2013.00/20ALLPDF617 KB
Control Drawings
Control Drawing cULs / Control Drawing cULs   ALLPDF150 KB
Control Drawing FM / Control Drawing FM   ALLPDF147 KB
Declaration of Conformity
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0357JALLPDF109 KB
UKCA-Declaration of conformity / UKCA-KonformitätserklärungDOC-7082ALLPDF101 KB

Associated Products: KCD2-RR2-Ex1.SP

2-pin, Fully insulated, For connectors with 5.0 mm or 5.08 mm pitchpa
2-pin screw terminal, For KC modules of K-System, Packaging unit: 5 pieces greenpa
2-pin screw terminal, For KC 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
Safety Products Selector

Choose from various selection criteria like safety integrity level, performance level, device function, and signal type and find the SIL/PL assessed device that you are looking for.