Serviceline Industrial Sensors
Serviceline Explosion Protection

Ground Fault Detection KFD2-ELD-Ex16

  • 16-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Analog or digtial field device inputs
  • Monitors leakage current
  • Fault relay contact output
  • LED status indication
  • Test circuit for validation
  • Parallel connection for easy integration
  • Conformal coating

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, also apply to Pepperl+Fuchs AG.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  KFD2-ELD-Ex16

Product Description
24 V DC
General specifications
Signal typeAnalog input
ConnectionPower Rail or terminals 44+, 45-
Rated voltage20 ... 30 V DC
Ripple≤ 10 %
Rated current≤ 50 mA
Connection sidefield side
Connectionintrinsically safe: terminals 1 ... 16
non-intrinsically safe: terminals 28, 29
Ground connectionterminal 17
Rated values5 Vpp, 0.1 mA; rectangular
FunctionTest input: 24 V DC / 5 mA; non-polarized
Connection sidecontrol side
Connectionterminals 19, 20, 21
Outputsignal ; relay
Contact loading253 V AC/2 A /cos φ > 0.7; 40 V DC/2 A resistive load;
Mechanical life107 switching cycles
Transfer characteristics
Response delay≤ 50 s
Galvanic isolation
Input/Outputreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Input/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Output/power supplyreinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 Veff
Display elementsLEDs
Control elementsDIP-switch
Configurationvia DIP switches
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Low voltage
Directive 2014/35/EUEN 61010-1:2010
Electromagnetic compatibilityNE 21:2007
Degree of protectionIEC 60529:2001
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 260 g
Dimensions60 x 119 x 115 mm (2.4 x 4.7 x 4.5 inch) , housing type D2
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-Type Examination CertificateTÜV 00 ATEX 1585
MarkingEx-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
Voltage7.2 V
Current1.7 mA
Power3 mW
Maximum safe voltage40 V DC (Attention! The rated voltage can be lower.)
Collective error message
Maximum safe voltage40 V (Attention! The rated voltage can be lower.)
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
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see

Documents: KFD2-ELD-Ex16

ManualsLanguageFile TypeFile Size
Functional Safety ManualENGPDF360 KB
Manual Isolated Barriers K-systemENGPDF760 KB
Manuel pour Barrières Isolées de Système KFRAPDF759 KB
Handbuch Funktionale SicherheitGERPDF359 KB
Handbuch Trennbarrieren K-SystemGERPDF745 KB
Manual Isolated Barriers K-systemRUSPDF4107 KB
Instruction manuals
ИнструкцииBULPDF62 KB
Návod k poużitíCZEPDF57 KB
Instruktions manualDANPDF55 KB
Instruction manualENGPDF49 KB
KasutusjuhendESTPDF53 KB
KäyttöohjeFINPDF53 KB
Manuel d'instructionsFRAPDF91 KB
BetriebsanleitungGERPDF51 KB
Οδηγίες χρήσηςGREPDF65 KB
HandleidingHOLPDF67 KB
Instruction manual / BetriebsanleitungHRVPDF65 KB
Használati útmutatóHUNPDF66 KB
Manuale di istruzioniITAPDF89 KB
Lietošanas pamācībaLAVPDF65 KB
Instrukciju vadovasLITPDF65 KB
Instrukcja obsługiPOLPDF68 KB
Manual de instruçõesPORPDF68 KB
Manual de utilizareRONPDF67 KB
Návod na poużitieSLKPDF126 KB
Manual de instruccionesSPAPDF91 KB


EPLANFile TypeFile Size
EPLAN Data Portal / EPLAN Data PortalLINK---

Approvals+Certificates: KFD2-ELD-Ex16

Statements of complianceCertificate No.File TypeFile Size
EU-Declaration of conformity / EU-KonformitätserklärungDOC-0112BPDF122 KB
Europe TUV Nord ATEX Category (1) D ATEX Category (1) G ATEX Category (M1) EC-Type Exam. CertificateTÜV 00 ATEX 1585PDF1256 KB
India CCOEA/P/HQ/MH/104/4014(P358003)PDF671 KB
TUV Nord IECEx Certificate of ConformityIECEx TUN 13.0009LINK---
Worldwide Pepperl+Fuchs Functional Safety Assessmentfs0016pf-20bPDF329 KB

Function: KFD2-ELD-Ex16

This isolated barrier is used for intrinsic safety applications.

The device detects ground faults on field lines.

The 16 channels of the device continuously monitor galvanically isolated circuits and warns if their resistance to ground falls below 10 kΩ.

During an alarm condition, the appropriate channel LED is illuminated and the change-over contact is initiated (S1 = position I). The function of this relay can be reversed with switch S1 (S1 = position II).

A self-test can be activated via the test input of the device. The device reacts by switching the relay. The self-test can be triggered manually by the user or remotely by the control system.