Serviceline Industrial Sensors
Serviceline Explosion Protection

Current Driver KFD2-CD2-Ex2

  • 2-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Current output up to 700 Ω load
  • I/P and valve positioners
  • Accuracy 0.05 %
  • Up to SIL2 acc. to IEC 61508

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of KFD2-CD2-Ex2

General specifications
Signal typeAnalog output
ConnectionPower Rail or terminals 14+, 15-
Rated voltage20 ... 35 V DC
Ripplewithin the supply tolerance
Power dissipation1.4 W
Power consumption1.8 W at 20 mA
Connectionterminals 7-, 8+; 10-, 11+
Voltage dropapprox. 2.5 V or internal resistance 125 Ω at 20 mA
Input resistance≤ 2.5 V, equivalent to 125 Ω at 20 mA
Ripple50 µArms
Current4 ... 20 mA limited to approx. 25 mA
Connectionterminals 1+, 2-; 4+, 5-
Current4 ... 20 mA
Load0 ... 700 Ω
Voltage≥ 14 V at 20 mA
Transfer characteristics
Rise time< 100 µs , 10 ... 90 % step change
Directive conformity
Electromagnetic compatibility
Directive 2004/108/ECEN 61326-1:2006
Electromagnetic compatibilityNE 21:2011
Degree of protectionIEC 60529:2001
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Massapprox. 150 g
Dimensions20 x 119 x 115 mm (0.8 x 4.7 x 4.5 in) , housing type B2
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with Ex-areas
EC-Type Examination CertificateBAS 00 ATEX 7240 , for additional certificates see
Group, category, type of protectionEx-Hexagon II (1)G [Ex ia Ga] IIC , Ex-Hexagon II (1)D [Ex ia Da] IIIC , Ex-Hexagon I (M1) [Ex ia Ma] I
Statement of conformityTÜV 99 ATEX 1499 X , observe statement of conformity
Group, category, type of protection, temperature classEx-Hexagon II 3G Ex nA II T4 [device in zone 2]
Directive conformity
Directive 94/9/ECEN 60079-0:2012 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
UL approval
Control drawing116-0173 (cULus)
IECEx approvalIECEx BAS 04.0014
Approved for[Zone 0] [Ex ia] IIC, [Ex iaD], [Ex ia] I

Documents: KFD2-CD2-Ex2

ManualsLanguageFile TypeFile Size
Manual Isolated Barriers K-systemENGPDF760 KB
Manuel pour Barrières Isolées de Système KFRAPDF759 KB
Handbuch Trennbarrieren K-SystemGERPDF745 KB
Handbuch Trennbarrieren K-System/Manual Isolated Barriers K-systemRUSPDF4107 KB
Instructions, short instructions, safety information
Instruction manualENGPDF50 KB
Notice d'instructionsFRAPDF97 KB
BetriebsanleitungGERPDF62 KB
Manuale di istruzioniITAPDF93 KB
Manual de instruccionesSPAPDF95 KB

Approvals+Certificates: KFD2-CD2-Ex2

Statements of complianceCertificate No.File TypeFile Size
EU-Konformitätserklärung/EU-Declaration of conformityDOC-0046BPDF88 KB
Europe Baseefa ATEXBAS 00 ATEX 7240PDF887 KB
Europe TUV Nord ATEX Category 3 GTÜV 99 ATEX 1499XPDF1999 KB
Baseefa IECEx Certificate of ConformityIECEx BAS 04.0014LINK---
exida Functional Safety AssessmentP+F 03/10-12 R014PDF302 KB
Canada UL cULE106378 cUL (QUZW7)LINK---
China NEPSIGYJ 111219PDF1779 KB
Russia VNIIMS Pattern ApprovalDE.C.34.004.A No.56757PDF976 KB
Belarus11-1-019-2013PDF1639 KB
Russia Belarus EAC Kazakhstan NANIO "CCVE"TC RU C-IT.GB05.B.00718PDF2731 KB
India PESO (India) CCOEA/P/HQ/MH/104/3887 (P352047)PDF974 KB
Brasil TUV Rheinland BrazilTÜV 14.0363PDF1468 KB
Control drawings
Control Drawing UL/Control Drawing UL   PDF1092 KB