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Segment Coupler 1 KFD2-BR-Ex1.3PA.93

  • Output: 12.6 ... 13.4 V/100 mA
  • Couples PROFIBUS PA devices transparently to PROFIBUS DP
  • Intrinsically safe, Ex ia (FISCO or Entity)
  • Installation in Zone 2/Class I, Div. 2
  • Fixed, high-availability terminator
  • For all non-redundant masters
  • Cyclic/acyclic data exchange

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  KFD2-BR-Ex1.3PA.93

General specifications
Design / MountingCabinet installation
ConnectionPower Rail or terminals 59+, 60-, 58 FE
Rated voltage20 ... 35 V DC
Ripple≤ 10 %
Rated current190 mA ... 430 mA
Fieldbus connection
Connectionterminals 3, 18+; 2, 17-
Rated voltage12.6 ... 13.4 V
Rated currentmax. 100 mA
Terminating impedance100 Ω , integrated
PROFIBUS DPPROFIBUS with RS-485 transmission technology
ConnectionTerminals 40 RxD/TxD-P, 41 RxD/TxD-N, 42 screen/FE, 55 DGND, 56 CNTR-P, 57 VP
Baud rate93.75 kBit/s
Terminating impedancewith rotary switch (S1) switchable: 1 = on; 0 = off
Galvanic isolation
PROFIBUS DP/PROFIBUS PAsafe galvanic isolation acc. to EN 50020, voltage peak value 375 V
PROFIBUS DP/Supplyfunctional insulation acc. to DIN EN 50178, rated insulation voltage 50 Veff
PROFIBUS PA/Supplysafe galvanic isolation acc. to EN 50020, voltage peak value 375 V
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013
Standard conformity
Galvanic isolationEN 50178
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529
Fieldbus standardEN 50170/2
Climatic conditionsIEC 60721
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Relative humidity< 75 %
Pollution degreemax. 2, according to IEC 60664
Mechanical specifications
Connection typeTerminals
Core cross sectionup to 2.5 mm2
Housing100 mm x 115 mm x 107 mm
Degree of protectionIP20
Mass650 g
MountingDIN rail mounting
Data for application in connection with hazardous areas
EU-type examination certificatePTB 99 ATEX 2142 , for additional certificates see
MarkingEx-Hexagon II (1) G [Ex ia] IIC Ga , Ex-Hexagon II (1) D [Ex ia] IIIC Da
Maximum safe voltage253 V AC / 125 V DC (Attention! Um is no rated voltage.)
Voltage15 V
Current207.2 mA
Power1.93 W
Maximum safe voltage60 V
CertificatePF 15 CERT 3527 X
MarkingEx-Hexagon II 3G Ex ec II T4 Gc
Directive conformity
Directive 2014/34/EUEN 60079-0:2012 , EN 60079-7:2015 , EN 60079-11:2012
General information
Supplementary informationEC-Type Examination Certificate, Statement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see


ECLASS 13.027242610
ECLASS 12.027242610
ECLASS 11.027242610
ECLASS 10.0.127242610
ECLASS 9.027242610
ECLASS 8.027242610
ECLASS 5.127242610
ETIM 9.0EC001600
ETIM 8.0EC001600
ETIM 7.0EC001600
ETIM 6.0EC001600
ETIM 5.0EC001604
UNSPSC 12.139121008

Details: KFD2-BR-Ex1.3PA.93


The Segment Coupler 1 (SK1) is an all-in-one gateway and fieldbus power supply for connecting PROFIBUS PA to PROFIBUS DP transparently. The Segment Coupler powers a single PROFIBUS PA segment adapting current and voltage.

The output is rated intrinsically safe Ex ia IIC according to FISCO and Entity. The complete segment can be installed intrinsically safe.

Communication is transparent between DP and PA. The gateway of the Segment Coupler makes each PA device appear as if it was connected to DP: This relates to addressing, cyclic/acyclic data exchange, and the transfer rate. Segment design is clear and easy to understand without subnetworks. The gateway itself is confguration-free. All in all, these features significantly reduce engineering work.

SK1 supports any PROFIBUS DP master at a fixed transfer rate of 93.75 kbps.

Informative Literature: KFD2-BR-Ex1.3PA.93

Language Selection:
LiteratureLanguageFile TypeFile Size
Application Report - Controlling and Monitoring liquid Helium at the Deutsches Elektronen-SynchrotronENGPDF361 KB
Application Report - Digital Communication in Steel-Plate ManufacturingENGPDF470 KB

Product Documentation: KFD2-BR-Ex1.3PA.93

Language Selection:
ManualsLanguageFile TypeFile Size
Operating instructions Segment couplerENGPDF1186 KB

Approvals: KFD2-BR-Ex1.3PA.93

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Europe PTB ATEX Category (1) GPTB 99 ATEX 2142ALLPDF1775 KB
Europe Pepperl+Fuchs ATEX Category 3 GPF15CERT3527XALLPDF244 KB
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) G UKEX Category (1) DCML 23UKEX2204ALLPDF148 KB
Control Drawings
Control drawing CSA / Control drawing CSA   ALLPDF96 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-2570BALLPDF1046 KB

Associated Products: KFD2-BR-Ex1.3PA.93


Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa

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