Serviceline Industrial Sensors
Serviceline Explosion Protection

FieldBarrier® for Cabinet Installation R4D0-FB-IA*

  • 8 ... 12 outputs Ex ia IIC, FISCO and Entity
  • Advanced fault isolation and diagnostics at the spur
  • FieldBarrier in Zone 1/Div. 2
  • Instruments in Zone 0...1/Div. 1
  • For FOUNDATION Fieldbus H1 and PROFIBUS PA
  • Supports plug-in surge protectors
  • Very compact, small footprint
  • Designed for high reliability

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  R4D0-FB-IA*

Product Description
FieldConnex® FieldBarrier®
General specifications
Design / MountingCabinet installation
Fieldbus connection
Power dissipationsee table 1
Main cable (Trunk)
Rated voltage16 ... 32 V DC ,
min. 15 V in case of brown out
Rated currenttrunk IN to trunk OUT max. 2 A see table 1
Cable screen grounding optionCapacitive via 5.7 nF
Voltage droptrunk IN to trunk OUT 100 mV max.
Number of couplersmax. 3 per segment
Reverse polarity protectionBuilt-In
Number of outputs8, 10 or 12
Number of devices per output1
Cable length120 m
Rated voltage10 ... 14 V
Rated currentmax. 43 mA at one spur ,
max. 320 mA total current at all spurs
Short-circuit current53 mA , 1 mA in fallback state
Cable screen grounding optionCapacitive via 4.4 nF
Surge protectionTrunk overvoltage protection if voltage exceeds typ. 39 V, max. 41 V
Diagnostic and Protection Features
Fault IsolationShort Circuit Current Limitation at spurs
Bounce Protection at spurs
Signal inhibit at spurs
Physical Layer DiagnosticSignal level at spurs
Signal jitter at spurs
Noise level at spurs
Indicators/operating means
SwitchS1 ON: diagnostic alarms activated
S2 ON: diagnostic warnings activated
S3-S8: not used
LED PWRgreen: Fieldbus voltage > 16 V
LED COM/ERRyellow flashing: fieldbus communication and physical layer status ,
red: Hardware error
LED SPURSred: 2 Hz flashing in short-circuit condition
Galvanic isolation
Main wire/outputsisolation is not affected by interference according to EN 60079-11, voltage peak value 375 V
Output/OutputNo Isolation
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013
Standard conformity
Electromagnetic compatibilityNE 21:2011
Degree of protectionIEC/EN 60529
Fieldbus standardIEC 61158-2
Climatic conditionsIEC 60721
Shock resistanceEN 60068-2-27
Vibration resistanceEN 60068-2-6
Ambient conditions
Ambient temperature-40 ... 70 °C (-40 ... 158 °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
Corrosion resistanceacc. to ISA-S71.04-1985, severity level G3
Mechanical specifications
Connection typepluggable , screw terminal or spring terminal
Core cross-sectionsee table 2
Housing materialPolycarbonate
Degree of protectionIP20 ,
IP30 for Ex-e terminal cover
Mass2100 g
Dimensionssee dimensions
MountingDIN rail mounting and wall mounting
Data for application in connection with hazardous areas
EU-Type Examination CertificateBVS 13 ATEX E 121 X
MarkingEx-Hexagon II 2 (1)G Ex e ib mb [ia Ga] IIC T4 Gb ,
Ex-Hexagon II 2 G (1D) Ex e ib mb [ia IIIC Da] IIC T4 Gb
Main cable (Trunk)
Maximum safe voltage Um253 V AC
Outputsin accordance to FISCO and Entity
Power1.063 W
Voltage17.1 V
Current248.55 mA
Inductancegas group IIC 470 µH ,
gas group IIB 2 mH
Capacitancegas group IIC 367 nF ,
gas group IIB 2.15 µF
Directive conformity
Directive 2014/34/EUEN 60079-0:2012 , EN 60079-7:2007 , EN 60079-11:2012 , EN 60079-18:2009
International approvals
CSA approvalCSA 14.70004139
Control drawing116-0400
Approved forClass I, Division 2, Groups A, B, C, D T4
Class I, Zone 1, AEx/Ex e ib mb [ia Ga] IIC T4 Gb
Class I, Zone 1, AEx/Ex e ib mb [ia IIC Da] IIC T4 Gb
Associated equipment for Class I, Division 1 Groups A, B, C, D
Associated equipment for Class II, Division 1 Groups E, F, G
Associated equipment for Class III, Division 1
IECEx approvalIECEx BVS 13.0119X
Approved forEx e ib mb [ia Ga] IIC T4 Gb ,
Ex e ib mb [ia IIIC Da] IIC T4 Gb
Certificates and approvals
Marine approvalDNV A-14038
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 11.027242610
ECLASS 10.0.127242610
ECLASS 9.027242610
ECLASS 8.027242610
ECLASS 5.127242610
ETIM 8.0EC001601
ETIM 7.0EC001601
ETIM 6.0EC001601
ETIM 5.0EC001604
UNSPSC 12.139121008

Documents: R4D0-FB-IA*

ManualsLanguageFile TypeFile Size
ManualENGPDF2866 KB
HandbuchGERPDF3532 KB
Instruction manuals
ИнструкцииBULPDF204 KB
Návod k poużitíCZEPDF0 KB
Instruktions manualDANPDF0 KB
Instruction manualENGPDF69 KB
KasutusjuhendESTPDF0 KB
KäyttöohjeFINPDF193 KB
Manuel d'instructionsFRAPDF162 KB
BetriebsanleitungGERPDF76 KB
Οδηγίες χρήσηςGREPDF208 KB
HandleidingHOLPDF198 KB
Instruction manual / BetriebsanleitungHRVPDF197 KB
Használati útmutatóHUNPDF199 KB
Manuale di istruzioniITAPDF158 KB
Lietošanas pamācībaLAVPDF0 KB
Instrukciju vadovasLITPDF199 KB
Instrukcja obsługiPOLPDF201 KB
Manual de instruçõesPORPDF200 KB
Manual de utilizareRONPDF199 KB
Návod na poużitieSLKPDF200 KB
Navodila za uporaboSLVPDF197 KB
Manual de instruccionesSPAPDF160 KB
ManualSWEPDF195 KB


CADFile TypeFile Size
Dimension drawing 2-D (DXF) / Abmessungszeichnung 2-D (DXF)ZIP1304 KB

Approvals+Certificates: R4D0-FB-IA*

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0268CPDF92 KB
BVS IECEx Certificate of ConformityIECEx BVS 13.0119XLINK---
Brasil TUV Rheinland BrazilTÜV 14.1591 XPDF529 KB
Canada, USA CSA Certificate of ComplianceCSA 14.70004139PDF110 KB
China NEPSIGYJ16.1473XPDF1853 KB
DNV GL MarineTAA0000272PDF78 KB
Europe BVS ATEX Category 2 (1)BVS 13 ATEX E 121 XPDF1469 KB
Russia Belarus Kazakhstan EAC EAC TP TC 020/2011 EMCEAEC N RU D-DE.EA11.B.00318PDF2892 KB
Worldwide Fieldbus FoundationDC090100PDF55 KB
Control drawings
Control Drawing CSA / Control Drawing CSA   PDF343 KB

Associated Products: R4D0-FB-IA*

Matching System Components
8, 10, 12 outputs Ex ia, Electropolished enclosure, IP66, Configurable cable entries for trunk and spurs, Packaged certified solution, For FOUNDATION Fieldbus H1 and PROFIBUS PApa
FieldBarrier Junction Box, Brushed Stainless Steel, 8, 10, 12 outputs Ex ia, Brushed enclosure, IP66, Configurable cable entries for trunk and spurs, Packaged certified solution, For FOUNDATION Fieldbus H1 and PROFIBUS PApa
8, 10, 12 outputs Ex ia, Impact resistance enclosure, IP66, Configurable cable entries for trunk and spurs, Packaged certified solution, For FOUNDATION Fieldbus H1 and PROFIBUS PApa
Surge Protector in stainless steel housing, Flameproof enclosure (Ex d) protection, Surge protection for '+' and '-' fieldbus lead, Choice of threads 20 mm or 1/2" NPT, For FOUNDATION Fieldbus H1 and PROFIBUS PApa
Pluggable, mounts between device coupler and spur cable, Intrinsically safe (Ex ia), FISCO, Entity, DART Fieldbus, or general-purpose, Optional diagnostics for wear, Grounding of shield via gas-discharge tube, For FOUNDATION Fieldbus H1 and PROFIBUS PApa
Housing leakage sensor, for operation with FOUNDATION Fieldbus and PROFIBUS PA, Indication via LED and Advanced Diagnostics, Intrinsically safe, FISCO or Entity, For instrument or device coupler, Fits inside terminal compartment, For FOUNDATION Fieldbus H1 and PROFIBUS PApa

Function: R4D0-FB-IA*

The FieldBarrier is a diagnostic-enabled, isolated device coupler for DIN rail mounting and connects 8 … 12 instruments with intrinsic safety. At the spur, advanced fault protection isolates conditions such as short circuit, jabber, or bounce. Advanced Diagnostics at the spur detect installation quality issues for optimum segment availability.

Internal components such as the terminator are connected without wiring. Connections requiring maintenance are minimized. Critical components are designed with redundancy or monitored for degradation. All attributes ensure high product integrity.

The FieldBarrier supports diagnostic-enabled accessories such as enclosure leakage sensors and surge protectors. They all transmit fault and diagnostic information to the control room indicating the affected spur. All features contribute to simplified installation, troubleshooting and increased plant up-time.