Serviceline Industrial Sensors
Serviceline Explosion Protection

Compact Fieldbus Power Hub Motherboard for Yokogawa ALF111 MBHC-FB-4R.YO*

  • 4 segments, redundant, individual modules per segment
  • Customized for Yokogawa, ALF 111
  • High-power trunk: Live work on devices in any hazardous area
  • Best quality, smallest size and lowest heat dissipation
  • For FOUNDATION Fieldbus H1
  • Optional advanced diagnostics
  • Passive impedance for high reliability
  • Supports Ex ic voltage limitation
  • Installation in Zone 2/Div. 2
  • Spring terminals or screw terminals selectable
  • Left/right version for optimized cabinet layout

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  MBHC-FB-4R.YO*

General specifications
Design / MountingMotherboard based
Rated voltage19.2 ... 35 V SELV/PELV
Rated current12 A
Power dissipationtyp. 0.4 W per segment
Fieldbus connection
Number of segments4 redundant
Host-sideYokogawa ALF111 for AKB336 interface cable
Terminating resistor100 Ω integrated
Indicators/operating means
Fault signalVFC alarm 1 A, 50 V DC, normally closed
Galvanic isolation
Fieldbus segment/Fieldbus segmentfunctional insulation acc. to IEC 62103, rated insulation voltage 50 Veff
Fieldbus segment/Supplyfunctional insulation acc. to IEC 62103, rated insulation voltage 250 Veff
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Standard conformity
Electromagnetic compatibilityNE 21:2012
Degree of protectionIEC 60529
Fieldbus standardIEC 61158-2
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
Pollution degreemax. 2, according to IEC 60664
Corrosion resistanceacc. to ISA-S71.04-1985, severity level G3
Mechanical specifications
Connection typeplug-in terminals , spring terminal and screw terminal
Core cross-sectionscrew terminals: 0.25 ... 2.5 mm2
spring terminals: 0.25 ... 1.5 mm2
Housing materialPolycarbonate
Degree of protectionIP20
Massapprox. 610 g
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
CertificateTÜV 10 ATEX 555761X
MarkingEx-Hexagon II 3G Ex ec IIC T4 Gc
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approvalCoC 3024816, CoC 3024816C
FM certificateFM 19 US 0015 X and FM 19 CA 0011 X
FM markingAEx/Ex ec IIC T4
Approved forClass I, Division 2, Groups A, B, C, D, T4 / Class I, Zone 2, AEx/Ex nA IIC T4 , AEx/Ex ec IIC T4
IECEx approvalIECEx TUN 13.0037X
Approved forEx ec IIC T4 Gc
Certificates and approvals
Marine approvalDNV A-14038, pending for MBHC-FB-4R.YO.R
General information
Supplementary informationStatement of Conformity, Declaration of Conformity, Attestation of Conformity and instructions have to be observed where applicable. For information see


ECLASS 11.027242603
ECLASS 10.0.127242603
ECLASS 9.027242603
ECLASS 8.027242603
ECLASS 5.127242603
ETIM 8.0EC001598
ETIM 7.0EC001598
ETIM 6.0EC001598
ETIM 5.0EC001604
UNSPSC 12.139121008

Documents: MBHC-FB-4R.YO*

Instruction manualsLanguageFile TypeFile Size
ИнструкцииBULPDF208 KB
Návod k poużitíCZEPDF202 KB
Instruktions manualDANPDF0 KB
Instruction manualENGPDF76 KB
KasutusjuhendESTPDF195 KB
KäyttöohjeFINPDF0 KB
Manuel d'instructionsFRAPDF141 KB
BetriebsanleitungGERPDF78 KB
Οδηγίες χρήσηςGREPDF0 KB
HandleidingHOLPDF199 KB
Instruction manual / BetriebsanleitungHRVPDF200 KB
Használati útmutatóHUNPDF201 KB
Manuale di istruzioniITAPDF138 KB
Lietošanas pamācībaLAVPDF200 KB
Instrukciju vadovasLITPDF202 KB
Instrukcja obsługiPOLPDF203 KB
Manual de instruçõesPORPDF202 KB
Manual de utilizareRONPDF202 KB
Návod na poużitieSLKPDF0 KB
Navodila za uporaboSLVPDF200 KB
Manual de instruccionesSPAPDF138 KB
ManualSWEPDF198 KB


CADFile TypeFile Size
CAD drawing / CAD-ZeichnungZIP1964 KB

Approvals+Certificates: MBHC-FB-4R.YO*

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-2261DPDF80 KB
Canada FMFM 19 CA 0011XPDF356 KB
DNV GL MarineTAA0000272PDF78 KB
Europe TUV Nord ATEX Category 3 GTÜV 10 ATEX 555761XPDF2296 KB
Russia Belarus Kazakhstan EAC EAC TP TC 020/2011 EMCEAEC N RU D-DE.EA11.B.00318PDF2892 KB
TUV Nord IECEx ec Certificate of ConformityIECEx TUN 13.0037XLINK---
Worldwide Fieldbus FoundationPS066200PDF31 KB
Worldwide Fieldbus FoundationPS066300PDF31 KB

Associated Products: MBHC-FB-4R.YO*

Compact redundant Fieldbus Power Hub motherboard with redundant terminals for Yokogawa ALF111 on the right-hand sidepa
Matching System Components

Output: 28 ... 30 V/500 mA, High-power trunk for high device count and long cable lengths, With galvanic isolation, Installation in Zone 2/Class I, Div. 2, For FOUNDATION Fieldbus H1 and PROFIBUS PApa

Output: 21 ... 23 V/500 mA, Voltage limitation for Entity ic and Ex nL, With galvanic isolation, Installation in Zone 2/Class I, Div. 2, For FOUNDATION Fieldbus H1 and PROFIBUS PApa

Function: MBHC-FB-4R.YO*

The FieldConnex ® Compact Power Hub is a modular fieldbus power supply for four segments with lowest power dissipation and smallest foot print. It supports explosion protection e.g. the High-Power Trunk for longest cable run and highest device count. The Power Hub supports optional Advanced Diagnostics for fast fieldbus commissioning and online monitoring.

The motherboard is the wiring interface with redundant connectors for direct DCS hook-up via the AKB system cable. The version with type code extension ".R" has host connections on the right side for symmetrical cabinet layout. Sockets for all modules enable simple installation and replacement without tools. For power redundancy with seamless transfer, pairs of modules feed each segment. Wire connections can be selected as spring terminals or screw terminals.

This design allows the most compact cabinet layout. Excellent availability and a very long service life are achieved through: passive impedance filter per segment, high-availability fieldbus termination and plugs with retaining screws. Electronics are optimized for lowest power dissipation and compactness.

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