Serviceline Industrial Sensors
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Fax: 330-405-4710
Serviceline Explosion Protection
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Fax: 330-963-5827

Repeater KFD0-CS-Ex2.52

  • 2-channel isolated barrier
  • 24 V DC supply (loop powered)
  • Current input/output 4 mA ... 20 mA
  • Accuracy 0.1 %
  • Entity parameter Io/Isc = 0 mA
 Please contact the Serviceline for exact delivery estimation
533.00 USD
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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-CS-Ex2.52

General specifications
Signal typeAnalog input
Rated voltage4 ... 24 V DC , loop powered
Power dissipation150 mW
Power consumption1 W
Control circuit
Connectionterminals 12-, 11+; 8-, 10-, 9+
Voltage4 ... 24 V DC for 4 V < Uin < 24 V: 0.97 x Uin - (85 x current in A) - 1.3
Current4 ... 20 mA
Field circuit
Connectionterminals 1+, 2-; 4+, 5-
Transmission rangecurrent: 4 ... 24 mA
voltage: 4 ... 24 V DC
Transfer characteristics
Accuracy0.1 %
After calibration± 20 µA incl. calibration, linearity, hysteresis and load fluctuations at 20 °C (68 °F), Uin ≤ 20 V
+20 µA/-50 µA incl. calibration, linearity, hysteresis and load fluctuations at 20 °C (68 °F), 20 V < Uin < 24 V
Influence of ambient temperature± 1 µA/K (0 ... 50 °C (32 ... 122 °F)), Uin ≤ 12 V
± 2 µA/K (0 ... 60 °C (32 ... 140 °F)), Uin ≤ 18 V
± 5 µA/K (-20 ... 60 °C (-4 ... 140 °F)), Uin ≤ 24 V
Rise time≤ 10 ms at 4 ... 20 mA and 250 Ω load
Galvanic isolation
Input/Outputsafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Electromagnetic compatibilityNE 21:2011
Degree of protectionIEC 60529:2001
Protection against electrical shockUL 61010-1:2012
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 100 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2
Height119 mm
Width20 mm
Depth115 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateBASEEFA 03 ATEX 0141
MarkingEx-Hexagon II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20 °C ≤ Tamb ≤ 60 °C) , [circuit(s) in zone 0/1/2]
Voltage25.2 V DC
Current0 mA
Maximum safe voltage253 V eff (Attention! The rated voltage can be lower.)
CertificateTÜV 99 ATEX 1499 X
MarkingEx-Hexagon II 3G Ex nA II T4 [device in zone 2]
Galvanic isolation
Input/Outputsafe 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
FM approval
Control drawing116-0129
UL approval
Control drawing116-0173 (cULus)
IECEx approval
IECEx certificateIECEx BAS 08.0059
IECEx marking[Ex ia Ga] IIC , [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


ECLASS 13.027210123
ECLASS 12.027210120
ECLASS 11.027210120
ECLASS 10.0.127210120
ECLASS 9.027210120
ECLASS 8.027210120
ECLASS 5.127210120
ETIM 9.0EC002653
ETIM 8.0EC002653
ETIM 7.0EC002653
ETIM 6.0EC002653
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: KFD0-CS-Ex2.52


This isolated barrier is used for intrinsic safety applications. It is loop-powered and repeats a 4 mA ... 20 mA signal from a current source inside a hazardous area to the safe area (It does not provide power for transmitters inside the hazardous area.).

The 25.2 V, 0 mA entity parameters make it easy to design intrinsically safe systems.

Informative Literature: KFD0-CS-Ex2.52

Language Selection:
LiteratureLanguageFile TypeFile Size
Application Report - Energy Generation in Wastwater Treatment PlantsENGPDF532 KB
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Application Report - Screening Systems in Sewage Treatment PlantsENGPDF577 KB
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Application Report - Water Inlet in Wastewater Treatment PlantsENGPDF526 KB

Product Documentation: KFD0-CS-Ex2.52

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF50 KB
ManualENGPDF3685 KB

Design / Simulation: KFD0-CS-Ex2.52

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---
CAE EPLAN Data Portal / CAE EPLAN Data PortalALLLINK---

Approvals: KFD0-CS-Ex2.52

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Baseefa IECEx Certificate of ConformityIECEx BAS 08.0059ALLLINK---
Canada FMFM 18 CA 0098XALLPDF301 KB
Europe Baseefa II (1) D I (M1) II (1) GBaseefa 03 ATEX 0141ALLPDF4958 KB
Europe TUV Nord ATEX Category 3 GTÜV 99 ATEX 1499XALLPDF1999 KB
South Africa MASCMASC MS/17-0860ALLPDF606 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378CoC 20140902 - E106378 RepRef 20011030ALLPDF429 KB
Ukraine SERTIS ExSC 21.0646 XALLPDF12351 KB
Control Drawings
Control drawing UL / Control drawing UL   ALLPDF1092 KB
Control drawing FM / Control drawing FM   ALLPDF58 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-0049CALLPDF54 KB

Associated Products: KFD0-CS-Ex2.52

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