Serviceline Industrial Sensors
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Tech phone: 0161 622 6311
Fax: 0161 624 6537
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Sales phone: 0161 622 6309
Tech phone: 0161 622 6313
Fax: 0161 624 6537

Basic Segment Coupler KFD2-BR-1.PA.1500

  • Output: 24 ... 26 V/400 mA
  • Couples PROFIBUS PA devices transparently to PROFIBUS DP
  • High-power trunk for high device count and long cable lengths
  • Installation in Zone 2/Class I, Div. 2
  • Up to 1.5 MBit auto-adapting
  • PROFIBUS DP terminator selectable
  • Power Rail support

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-1.PA.1500

General specifications
Design / MountingCabinet installation
ConnectionPower Rail or terminals 11 (L+), 12 (L-)
Rated voltage20 ... 30 V DC
Ripple≤ 10 %
Rated current640 mA ... 365 mA
Power dissipationmax 2.5 W
Fieldbus connection
Connection3+, 6+, 2-, 5-, 1 shield, 4 shield
Rated voltage24 ... 26 V
Rated currentmax. 400 mA
Terminating impedance100 Ω , integrated
PROFIBUS DPPROFIBUS with RS-485 transmission technology
Connectionterminals 7 RxD/TxD-P, 8 RxD/TxD-N, 9 shield, 10 FE
Baud rate1.5 MBit/s max.
Indicators/operating means
SwitchPROFIBUS DP terminator
LED PWRgreen: Power on
LED DP/ERRred 2 Hz flashing: DP error red on: Hardware error red off: DP communication detected
LED PAred 2 Hz flashing: No PA communication or overload Off: PA communication OK
Galvanic isolation
PROFIBUS DP/PROFIBUS PAfunctional insulation acc. to IEC 62103, rated insulation voltage 50 V AC /70 V DC
PROFIBUS DP/Supplybasic insulation according to IEC/EN 61010, rated insulation voltage 253 V AC /357 V DC
PROFIBUS PA/Supplybasic insulation according to IEC/EN 61010, rated insulation voltage 253 V AC /357 V DC
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013
Standard conformity
Electromagnetic compatibilityNAMUR NE 21
Degree of protectionIEC/EN 60529
Fieldbus standardEN 50170/2
Climatic conditionsDIN IEC 721
Shock resistanceEN 60068-2-27
Vibration resistanceEN 60068-2-6
Ambient conditions
Ambient temperature-40 ... 60 °C (-40 ... 140 °F)
Storage temperature-40 ... 85 °C (-40 ... 185 °F)
Relative humidity< 95 % non-condensing
Shock resistance15 g 11 ms
Vibration resistance1 g 10 ... 150 Hz
Pollution degreemax. 2, according to IEC 60664
Corrosion resistanceacc. to ISA-S71.04-1985, severity level G3
Mechanical specifications
Connection typeTerminals
Core cross sectionup to 2.5 mm2
Housing materialPolycarbonate
Degree of protectionIP20
Mass180 g
MountingDIN rail mounting
Data for application in connection with hazardous areas
CertificateTÜV 16 ATEX 7831 X
MarkingEx-Hexagon II 3G Ex ec IIC T4 Gc
Directive conformity
Directive 2014/34/EUEN IEC 60079-0:2018+AC:2020 , EN 60079-7:2015+A1:2018
International approvals
CSA approvalCSA 16.70064204
Approved forClass I, Division 2, Groups A, B, C, D
Class I, Zone 2, Ex nA IIC T4 Gc
IECEx approvalIECEx TUR 16.0006X
Approved forEx ec IIC T4 Gc
General information
Supplementary informationStatement 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-1.PA.1500


The FieldConnex ® basic Segment Coupler is an all-in-one gateway and fieldbus power supply for connecting PROFIBUS PA to PROFIBUS DP transparently. The power output suits long cable lengths and high device counts. Device couplers provide explosion protection for live work at the spur where needed.

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.

Availability and a long service life are achieved through a passive impedance filter and a design optimized for low heat dissipation. The fieldbus diagnostic handheld (FDH‑1) connects directly to test plug sockets located on the plug-in terminal.

Informative Literature: KFD2-BR-1.PA.1500

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-1.PA.1500

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF163 KB
ManualENGPDF1199 KB

Design / Simulation: KFD2-BR-1.PA.1500

Language Selection:
CADLanguageFile TypeFile Size

Approvals: KFD2-BR-1.PA.1500

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Canada, USA CSA Certificate of Compliance16.70064204ALLPDF172 KB
China SITIIAS CCC Ex Certificate2023322310005351 (Singapore)ALLPDF854 KB
Europe TUV Rheinland ATEX Category 3 GTÜV 16 ATEX 7831 XALLPDF172 KB
TUV Rheinland IECEx Certificate of Conformity Zone 2IECEx TUR 16.0006XALLLINK---
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-2642BALLPDF1039 KB

Software: KFD2-BR-1.PA.1500

Language Selection:
Software ToolsRelease InfoFile TypeFile Size
GSD converter for transparent gateways / GSD-Konverter für transparente GatewaysV1.3ZIP793 KB

Associated Products: KFD2-BR-1.PA.1500


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

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

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