Serviceline Industrial Sensors
Serviceline Explosion Protection

Voltage Repeater KFD2-VR-Ex1.19

  • 1-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Voltage input -10 V ... 10 V
  • Voltage output -10 V ... 10 V

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-VR-Ex1.19

General specifications
Signal typeAnalog input
ConnectionPower Rail or terminals 11+, 12-
Rated voltage20 ... 35 V DC
Ripplewithin the supply tolerance
Rated current< 25 mA
Connection sidefield side
Connectionterminals 4+, 5-
Input resistancemin. 10 MΩ
Transmission range-10 ... 10 V
Offset voltage/current< 2 mV / < 7 nA
Connection sidecontrol side
Connectionterminals 7-, 8+
Voltage-10 ... 10 V
Output resistancemax. 20 Ω
Transfer characteristics
Cut-off frequency1.2 kHz (-3 dB)
After calibration± 5 mV at 20 °C (68 °F)
Influence of ambient temperature< 0.005 % of range per K
Rise time≤ 0.4 ms
Galvanic isolation
Output/power supplyfunctional insulation, rated insulation voltage 50 V AC
Display elementsLED
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Electromagnetic compatibilityNE 21
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 100 g
Dimensions20 x 107 x 115 mm (0.8 x 4.2 x 4.5 inch) (W x H x D) , housing type B1
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateBAS 01 ATEX 7262
MarkingEx-Hexagon II (1)GD, I (M1) [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (-20 °C ≤ Tamb ≤ 60 °C) , [circuit(s) in zone 0/1/2]
Voltage18 V
Current4.2 mA
Power19 mW
Maximum safe voltage250 V (Attention! The rated voltage is lower.)
Maximum safe voltage250 V (Attention! The rated voltage is lower.)
CertificateBASEEFA 10 ATEX 0079X
MarkingEx-Hexagon II 3G Ex ec IIC T4 Gc [device in zone 2]
Galvanic isolation
Input/Outputsafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Input/power supplysafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-7:2015+A1:2018
International approvals
FM approval
Control drawing116-0129
UL approval
Control drawing116-0173 (cULus)
CSA approval
Control drawing116-0132
IECEx approval
IECEx certificateIECEx BAS 10.0040X
IECEx markingEx ec IIC T4 Gc
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see


ECLASS 11.027210120
ECLASS 10.0.127210120
ECLASS 9.027210120
ECLASS 8.027210120
ECLASS 5.127210120
ETIM 8.0EC002653
ETIM 7.0EC002653
ETIM 6.0EC002653
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: KFD2-VR-Ex1.19


This isolated barrier is used for intrinsic safety applications. It transfers voltage signals from hazardous areas to safe areas.

The input voltage of the terminals 4 and 5 is transferred to the terminals 7 and 8. The terminals 4 and 8 have the same polarity.

It repeats voltage signals from magnetic pickups, transducers, and flow meters between -10 V ... 10 V with signal frequencies up to 1.2 kHz.

Product Documentation: KFD2-VR-Ex1.19

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF50 KB
System Manual ENGPDF3673 KB

Design / Simulation: KFD2-VR-Ex1.19

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---
Dimension drawing 3-D / Abmessungszeichnung 3-DALLSTP105 KB

Approvals: KFD2-VR-Ex1.19

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Baseefa Ex ec IECEx Certificate of ConformityIECEx BAS 10.0040XALLLINK---
Canada UL cULE106378 cUL (QUZW7)ALLLINK---
Europe Baseefa II (1) D I (M1) II (1) GBAS 01 ATEX 7262ALLPDF2608 KB
Europe Baseefa II 3 GBaseefa 10 ATEX 0079XALLPDF2069 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378CoC 20140902 - E106378 RepRef 20011030ALLPDF429 KB
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) D UKEX Category (1) G UKEX Category (M1)CML 21UKEX2897ALLPDF168 KB
Control Drawings
Control Drawing UL / Control Drawing UL   ALLPDF1092 KB
Control Drawing FM / Control Drawing FM   ALLPDF58 KB
Declaration of Conformity
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0054CALLPDF54 KB

Associated Products: KFD2-VR-Ex1.19

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