Serviceline Industrial Sensors
Serviceline Explosion Protection

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 interface
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
EC-Type Examination CertificatePTB 99 ATEX 2142 , for additional certificates see
Group, category, type of protection, temperature classEx-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
Statement of conformityPF 15 CERT 3527 X
Group, category, type of protection, temperature classEx-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

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

ManualsLanguageFile TypeFile Size
Operating instructions Segment couplerENGPDF1186 KB
Betriebsanleitung SegmentkopplerGERPDF972 KB

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

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2570APDF140 KB
EAC EAC TP TC 020/2011TC RU C-DE.MH04.B.00397PDF680 KB
Europe PTB ATEX Category (1) GPTB 99 ATEX 2142PDF1775 KB
Europe Pepperl+Fuchs ATEX Category 3 GPF15CERT3527XPDF244 KB
Russia Belarus Kazakhstan EAC EAC TP TC 012/2011EAEC RU C-DE.EX01.B.00102/19PDF9815 KB
USA FMFM Listed (Approval Guide)LINK---
Control drawings
Control Drawing CSA / Control Drawing CSA   PDF96 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

Function: 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.

From decisions to planning, installation, and commissioning up to operation and maintenance: Discover how to make the most out of your fieldbus infrastructure …

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