Serviceline Industrial Sensors
Serviceline Explosion Protection

Voltage Repeater KFD2-VR4-Ex1.26

  • 1-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Voltage input 0 V ... -20 V
  • Vibration sensor inputs
  • Voltage/current field supply
  • Voltage output 0 V ... -20 V
  • Up to SIL 2 acc. to IEC 61508

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of KFD2-VR4-Ex1.26

General specifications
Signal typeAnalog input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
ConnectionPower Rail or terminals 11+, 12-
Rated voltage19 ... 30 V DC
Ripplewithin the supply tolerance
Power dissipation≤ 1.2 W
Power consumption≤ 1.6 W
Connection sidefield side
Connectionterminals 4 (common), 1, 3 and 5 (supply -), 2 and 6 (signal -)
Input resistance10 kΩ terminals 4 (common), 6-/2-
Output rated operating currentterminals 4 (common), 5-: > 10 mA at -21 V or > 20 mA at -18 V
terminals 4 (common), 1-: 5.3 mA ±0.4 mA at -10 V
terminals 4 (common), 3-: 3.6 mA ±0.7 mA at -10 V, 20 °C (68 °F)
Transmission range-20 ... 0 V
Connection sidecontrol side
Connectionterminals 7-, 8+
Load≥ 9 kΩ (3-wire sensor), ≥ 2 kΩ (2-wire sensor)
Voltage-20 ... 0 V
Output resistance24 Ω typ., 27 Ω maximum
Since this is much less than the end-to-end resistance of a zener barrier, it may be necessary to specify a monitor intended for use without a barrier. Please follow the advice of the monitor manufacturer.
Transfer characteristics
Cut-off frequency10 kHz (-0,1 dB)
20 kHz (-1 dB)
DeviationDC transfer error (with 10 kΩ load) < 10mV
Time delay relative to input7.1 ±0.3 µs
Ripplein 200 kHz bandwidth < 20 mVrms
in 20 kHz bandwidth < 3 mVrms
Display elementsLED
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Electromagnetic compatibilityNE 21:2006
Degree of protectionIEC 60529
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 125 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) , housing type B2
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-Type Examination CertificateBAS 02 ATEX 7206
MarkingEx-Hexagon II (1)GD, [Ex ia Ga] IIC, [Ex ia Da] IIIC, (-20 °C ≤ Tamb ≤ 60 °C) [circuit(s) in zone 0/1/2]
EU-Type Examination CertificateDMT 01 ATEX E 133
MarkingEx-Hexagon I (M1) [Ex ia] I
CertificateTÜV 99 ATEX 1499 X
MarkingEx-Hexagon II 3G Ex nA II T4 [device in zone 2]
Directive conformity
Directive 2014/34/EUEN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010 , EN 50303:2000
International approvals
UL approval
Control drawing116-0316 (cULus)
IECEx approvalIECEx BAS 05.0078
IECEx BAS 10.0085X
Approved for[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Ex nA II T4 Gc

Documents: KFD2-VR4-Ex1.26

ManualsLanguageFile TypeFile Size
Application note KFD2-VR4-Ex1.26ENGPDF5620 KB
Functional Safety ManualENGPDF706 KB
Manual Isolated Barriers K-systemENGPDF760 KB
Manuel pour Barrières Isolées de Système KFRAPDF759 KB
Handbuch Funktionale SicherheitGERPDF709 KB
Handbuch Trennbarrieren K-SystemGERPDF745 KB
Manual Isolated Barriers K-systemRUSPDF4107 KB
Instruction leaflets
Operating instructions KFD2-VR4-Ex1.26 / Betriebsanleitung KFD2-VR4-Ex1.26ALLPDF173 KB
Instruction manuals
ИнструкцииBULPDF135 KB
Návod k poużitíCZEPDF131 KB
Instruktions manualDANPDF129 KB
Instruction manualENGPDF135 KB
KasutusjuhendESTPDF0 KB
KäyttöohjeFINPDF0 KB
Manuel d'instructionsFRAPDF131 KB
BetriebsanleitungGERPDF135 KB
Οδηγίες χρήσηςGREPDF138 KB
HandleidingHOLPDF130 KB
Instruction manual / BetriebsanleitungHRVPDF0 KB
Használati útmutatóHUNPDF0 KB
Manuale di istruzioniITAPDF130 KB
Lietošanas pamācībaLAVPDF129 KB
Instrukciju vadovasLITPDF0 KB
Instrukcja obsługiPOLPDF131 KB
Manual de instruçõesPORPDF130 KB
Manual de utilizareRONPDF130 KB
Návod na poużitieSLKPDF130 KB
Navodila za uporaboSLVPDF128 KB
Manual de instruccionesSPAPDF130 KB
ManualSWEPDF127 KB

Approvals+Certificates: KFD2-VR4-Ex1.26

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0152CPDF381 KB
Australia Test SafeANZEx 17.3006XPDF6788 KB
Baseefa IECEx Certificate of ConformityIECEx BAS 05.0078LINK---
Baseefa Type n IECEx Certificate of ConformityIECEx BAS 10.0085XLINK---
Belarus Pattern ApprovalNr. 11709PDF15640 KB
Brasil TUV Rheinland BrazilTÜV 14.0355PDF628 KB
Canada UL cULE106378 cUL (QVAJ7)LINK---
Canada UL cULE106378 cUL (QUZW7)LINK---
China NEPSIGYJ 15.1460PDF1907 KB
EAC EAC TP TC 020/2011TC RU C-DE.MH04.B.00397PDF680 KB
Europe Baseefa II (1) D II (1) GBAS 02 ATEX 7206PDF3113 KB
Europe DEKRA EXAM ATEX Category (M1)DMT 01 ATEX E 133PDF1310 KB
Europe TUV Nord ATEX Category 3 GTÜV 99 ATEX 1499XPDF1999 KB
India PESO (India) CCOEA/P/HQ/KA/104/5530 (P404194)PDF864 KB
Japan TIISTC22384PDF1452 KB
Korea KOSHA12-AV4BO-0394PDF1179 KB
Pepperl+Fuchs Functional Safety AssessmentFS-0040PF-20BPDF107 KB
Russia Belarus EAC Kazakhstan NANIO "CCVE"TC RU C-IT.GB05.B.00718PDF2731 KB
Russia VNIIMS Pattern ApprovalDE.C.34.004.A No.56757PDF6207 KB
South Africa MASCMASC MS/17-0877PDF248 KB
South Africa MASCMASC M/17-0784PDF280 KB
Control drawings
Control drawing UL / Control drawing UL   PDF41 KB