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Explosion Protection

SMART Transmitter Power Supply KFD2-STC4-Ex2

KFD2-STC4-Ex2
  • 2-channel isolated barrier
  • 24 V DC supply (Power Rail)
  • Input 2-wire SMART transmitters
  • Output 0/4 mA ... 20 mA
  • Terminals with test points
  • Up to SIL 2 acc. to IEC/EN 61508

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.

Datasheet excerpt: Technical data of  KFD2-STC4-Ex2

General specifications
Signal typeAnalog input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
Supply
ConnectionPower Rail or terminals 14+, 15-
Rated voltage20 ... 35 V DC
Ripplewithin the supply tolerance
Power dissipation1.8 W
Power consumptionmax. 2.7 W
Input
Connection sidefield side
Connectionterminals 1+, 3-; 4+, 6-
Input signal0/4 ... 20 mA
Available voltage≥ 16 V at 20 mA, terminals 1+, 3
Output
Connection sidecontrol side
Connectionterminals 7-, 8+; 10-, 11+
Load0 ... 550 Ω at 20 mA
Output signal0/4 ... 20 mA (overload > 25 mA)
Ripplemax. 50 µA rms
Transfer characteristics
Deviationat 20 °C (68 °F), 0/4 ... 20 mA
≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
Influence of ambient temperature0.25 µA/K
Frequency rangefield side into the control side: band width with 1 Vpp signal 0 ... 7.5 kHz (-3 dB)
safe area to hazardous area: band width with 1 VSS signal 0.3 ... 7.5 kHz (-3 dB)
Settling time200 µs
Rise time/fall time20 µs
Galvanic isolation
Output/power supplyfunctional insulation, rated insulation voltage 50 V AC
Output/Outputfunctional insulation, rated insulation voltage 50 V AC
Indicators/settings
Display elementsLED
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibilityNE 21:2011
Degree of protectionIEC 60529:2001
Protection against electrical shockUL 61010-1:2012
Ambient conditions
Ambient temperature-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protectionIP20
Connectionscrew terminals
Massapprox. 150 g
Dimensions20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , (W x H x D) housing type B2
Height124 mm
Width20 mm
Depth115 mm
Mountingon 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificateBAS 99 ATEX 7025 X
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
Input[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Voltage25.2 V
Current93 mA
Power0.586 W
Supply
Maximum safe voltage250 V (Attention! The rated voltage can be lower.)
CertificateTÜV 99 ATEX 1499 X
MarkingEx-Hexagon II 3G Ex nA II T4
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 IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
UL approvalE106378
Control drawing116-0428 (cULus)
IECEx approval
IECEx certificateIECEx BAS 04.0015X
IECEx CML 15.0055X
IECEx marking[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I
Ex nA IIC T4 Gc
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

SystemClasscode
ECLASS 13.027210119
ECLASS 12.027210119
ECLASS 11.027210119
ECLASS 10.0.127210119
ECLASS 9.027210119
ECLASS 8.027210119
ECLASS 5.127210119
ETIM 9.0EC001485
ETIM 8.0EC001485
ETIM 7.0EC001485
ETIM 6.0EC001485
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: KFD2-STC4-Ex2

This isolated barrier is used for intrinsic safety applications.

The device supplies 2-wire SMART transmitters in a hazardous area.

It transfers the analog input signal to the safe area as an isolated current value.

Digital signals may be superimposed on the input signal in the hazardous or safe area and are transferred bi-directionally.

If the HART communication resistance in the loop is too low, the internal resistance of 250 Ω between terminals 8 and 9 can be used.

Test sockets for the connection of HART communicators are integrated into the terminals of the device.

Datasheet: KFD2-STC4-Ex2

DatasheetFile TypeFile Size
Datasheet KFD2-STC4-Ex2PDF311 KB
Fiche de données KFD2-STC4-Ex2PDF1015 KB
Datenblatt KFD2-STC4-Ex2PDF815 KB
Datasheet KFD2-STC4-Ex2PDF1017 KB
Hoja de datos KFD2-STC4-Ex2PDF1013 KB

Documents: KFD2-STC4-Ex2

ManualsFile TypeFile Size
ManualPDF3685 KB
ManualPDF557 KB
HandbuchPDF3693 KB
Instruction manuals
ИнструкцииPDF170 KB
Instruction manual / BetriebsanleitungPDF325 KB
Návod k poużitíPDF164 KB
Instruktions manualPDF163 KB
Instruction manualPDF168 KB
KasutusjuhendPDF160 KB
KäyttöohjePDF159 KB
Manuel d'instructionsPDF166 KB
BetriebsanleitungPDF170 KB
Οδηγίες χρήσηςPDF173 KB
HandleidingPDF165 KB
Instruction manual / BetriebsanleitungPDF162 KB
Használati útmutatóPDF166 KB
Manuale di istruzioniPDF164 KB
Lietošanas pamācībaPDF163 KB
Instrukciju vadovasPDF164 KB
Instrukcja obsługiPDF166 KB
Manual de instruçõesPDF165 KB
Manual de utilizarePDF164 KB
Návod na poużitiePDF164 KB
Navodila za uporaboPDF162 KB
Manual de instruccionesPDF165 KB
ManualPDF161 KB
Application reports
Application Report - Energy Generation in Wastwater Treatment PlantsPDF532 KB
Application Report - Generating Electricity in Coal-Fired Power PlantsPDF412 KB
Application Report - Screening Systems in Sewage Treatment PlantsPDF577 KB
Application Report - Sicherer Brennstofftransport in KohlekraftwerkenPDF391 KB
Application Report - Water Inlet in Wastewater Treatment PlantsPDF526 KB
Applikationsbericht - Energiegewinnung in KläranlagenPDF535 KB
Applikationsbericht - Rechenanlagen in KläranlagenPDF578 KB
Applikationsbericht - Sicherer Brennstofftransport in KohlekraftwerkenPDF393 KB
Applikationsbericht - Stromerzeugung in KohlekraftwerkenPDF416 KB
Applikationsbericht - Wasserzulauf in KläranlagenPDF527 KB

CAD+CAE: KFD2-STC4-Ex2

CADFile TypeFile Size
CAD 3-D / CAD 3-DSTP3048 KB
CAD Portal / CAD PortalLINK---
EPLAN
EPLAN macro EDZ / EPLAN Makro EDZEDZ61 KB

Associated Products: KFD2-STC4-Ex2

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Accessories
1-channel, Precision resistor, Conversion of 4 mA ... 20 mA/2 V ... 10 Vpa
1-channel, Precision resistor, Conversion of 0 mA ... 20 mA/0 V ... 5 Vpa
3-pin screw terminal, For KF modules of K-System, Integrated test sockets for connection of HART communicators, Packaging unit: 5 pieces bluepa
3-pin screw terminal, For KF modules of K-System, Integrated test sockets for connection of HART communicators, Packaging unit: 5 pieces greenpa
3-pin screw terminal, For KF modules of K-System, Packaging unit: 5 pieces greenpa
Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa
General Notes Relating to Pepperl+Fuchs Product Information
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Pepperl+Fuchs GB Ltd.
77 Ripponden Road
Oldham OL1 4EL, Lancs.
United Kingdom
sales@gb.pepperl-fuchs.com
phone +44 161 6336431

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Pepperl+Fuchs is a leading developer and manufacturer of electronic sensors and components for the global automation market. Continuous innovation, enduring quality, and steady growth have been the foundation of our success for more than 70 years. Pepperl+Fuchs employs 6,300 people worldwide and has manufacturing facilities in Germany, USA, Singapore, Hungary, Indonesia and Vietnam, most of them ISO 9001 certified.