SMART Transmitter Power Supply KFD2-STC5-Ex2

2-channel isolated barrier
24 V DC supply (Power Rail)
Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources
Output 4 mA ... 20 mA current sink/current source
Terminals with test points
Up to SIL 2 (SC 3) acc. to IEC/EN 61508

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700.00 USD Unit Price

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Technical Data
Details
Informative Literature
Product Documentation
Design / Simulation
Approvals
Associated Products
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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-STC5-Ex2

General specifications
Signal type		Analog input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Systematic capability (SC)		SC 3
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		18 ... 30 V DC
Ripple		within the supply tolerance
Power dissipation		≤ 1.4 W at maximum load
Power consumption		≤ 2.6 W at maximum load
Input
Connection side		field side
Connection		terminals 1+, 2-, 3; 4+, 5-, 6
Input signal		4 ... 20 mA
Open circuit voltage/short-circuit current		terminals 1+, 3; 4+, 6: 23 V / 25 mA
Input resistance		max. 265 Ω terminals 2-, 3; 5-, 6 , max. 330 Ω terminals 1+, 3; 4+, 6
Available voltage		≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3; 4+, 6
Output
Connection side		control side
Connection		terminals 7+, 8-, 9-; 10+, 11-, 12- (sink) terminals 7-, 8+, 9+; 10-, 11+, 12+ (source) see additional information
Load		0 ... 600 Ω
Output signal		4 ... 20 mA (overload > 25 mA)
Ripple		max. 50 µA _rms
External supply (loop)		2 ... 30 V DC If the external voltage is > 19 V, a load ≥ ((V - 19) / 0.02) Ω is required. V represents the value of the external voltage. The internal 250 Ω resistor at terminals 9 and 12 can be used as a load.
Transfer characteristics
Deviation		at 20 °C (68 °F), 4 ... 20 mA ≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
	Influence of ambient temperature	≤ 0.25 µA/K
Frequency range		field side into the control side: band width with 1 V_pp signal 0 ... 7.5 kHz (-3 dB) safe area to hazardous area: band width with 1 V_SS signal 0.3 ... 7.5 kHz (-3 dB)
Settling time		200 µs
Rise time/fall time		100 µs
Galvanic isolation
Output/power supply		functional insulation, rated insulation voltage 50 V AC
Output/Output		functional insulation, rated insulation voltage 50 V AC
Indicators/settings
Display elements		LED
Labeling		space for labeling at the front
Directive conformity
Electromagnetic compatibility
	Directive 2014/30/EU	EN 61326-1:2013 (industrial locations)
Conformity
Electromagnetic compatibility		NE 21:2012 EN 61326-3-2:2008
Degree of protection		IEC 60529:2001
Protection against electrical shock		UL 61010-1:2012
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F) extended ambient temperature range up to 70 °C (158 °F), refer to manual for necessary mounting conditions
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 200 g
Dimensions		20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) (W x H x D) , housing type B2
	Height	124 mm
	Width	20 mm
	Depth	115 mm
Mounting		on 35 mm DIN mounting rail acc. to EN 60715:2001
Data for application in connection with hazardous areas
EU-type examination certificate		CML 17 ATEX 2031X
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
	Input	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Supply
	Maximum safe voltage	250 V (Attention! The rated voltage can be lower.)
Equipment		terminals 1+, 3-; 4+, 6-
	Voltage	26.2 V
	Voltage	27.25 V
	Current	93 mA
	Power	634 mW
Equipment		terminals 2-, 3+; 5-, 6+
	Voltage	30 V
	Current	115 mA
	Power	max 1 W
	Voltage	2 V
	Current	8.5 mA
	Power	4.3 mW
Equipment		terminals 1+, 2/3-; 4+, 5/6-
	Voltage	26.2 V
	Voltage	27.25 V
	Current	115 mA
	Power	784 mW
Certificate		CML 17 ATEX 3030X
	Marking	II 3G Ex ec IIC T4 Gc
Galvanic isolation
	Input/Output	safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
	Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN IEC 60079-0:2018+AC:2020 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012
International approvals
UL approval		E106378
	Control drawing	116-0439 (cULus)
IECEx approval
	IECEx certificate	IECEx CML 17.0016X
	IECEx marking	[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I Ex ec IIC T4 Gc
General information
Supplementary information		Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see www.pepperl-fuchs.com.

Classifications

System	Classcode
ECLASS 13.0	27210119
ECLASS 12.0	27210119
ECLASS 11.0	27210119
ECLASS 10.0.1	27210119
ECLASS 9.0	27210119
ECLASS 8.0	27210119
ECLASS 5.1	27210119
ETIM 9.0	EC001485
ETIM 8.0	EC001485
ETIM 7.0	EC001485
ETIM 6.0	EC001485
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

Details: KFD2-STC5-Ex2

Function

This isolated barrier is used for intrinsic safety applications.

The device supplies 2-wire and 3-wire SMART transmitters, and can also be used with 2-wire SMART current sources.

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 non-hazardous area and are transferred bi-directionally.

The device provides a sink mode or a source mode output on the safe area terminals.

The device has an internal resistor. Use this resistor if the HART communication resistance in the control circuit is too low.

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

Informative Literature: KFD2-STC5-Ex2

Literature	Language	File Type	File Size
Application Report - Energy Generation in Wastwater Treatment Plants	ENG	PDF	532 KB
Application Report - Generating Electricity in Coal-Fired Power Plants	ENG	PDF	412 KB
Application Report - Screening Systems in Sewage Treatment Plants	ENG	PDF	577 KB
Application Report - Sicherer Brennstofftransport in Kohlekraftwerken	ENG	PDF	391 KB
Application Report - Water Inlet in Wastewater Treatment Plants	ENG	PDF	526 KB

Product Documentation: KFD2-STC5-Ex2

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	169 KB
Functional Safety Manual	ENG	PDF	1946 KB
Functional Safety Manual	ENG	PDF	1974 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KFD2-STC5-Ex2

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3048 KB
CAD Portal / CAD Portal	ALL	LINK	---
CAE
CAE EPLAN Data Portal / CAE EPLAN Data Portal	ALL	LINK	---
CAE EPLAN macro EDZ / CAE EPLAN Makro EDZ	ALL	EDZ	1646 KB

Approvals: KFD2-STC5-Ex2

Certificates	Certificate No.	Language	File Type	File Size
Australia New Zealand SIMTARS Group I	ANZEx 21.2004X	ALL	PDF	340 KB
Brasil TUV Rheinland Brazil	TÜV 19.0464X	ALL	PDF	1375 KB
CML IECEx Certificate of Conformity	IECEx CML 17.0016X	ALL	LINK	---
China SITIIAS CCC Ex Certificate	2020322316001440 (Singapore)	ALL	PDF	2192 KB
Europe CML ATEX Category 3 G	CML 17ATEX3030X	ALL	PDF	152 KB
Europe CML I (M1) II (1) D ATEX II (1) G	CML 17ATEX2031X	ALL	PDF	203 KB
India PESO (India) CCOE	A/P/HQ/KA/104/5970 (P546932)	ALL	PDF	83 KB
Japan CML II (1) D II 3 G II (1) G	CML 18JPN2186X	ALL	PDF	314 KB
Korea KOSHA	18-AV4BO-0356X	ALL	PDF	526 KB
South Africa MASC	MASC MS/21-8048X	ALL	PDF	798 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378	CoC E106378 RepRef E106378-20171103	ALL	PDF	413 KB
Ukraine SERTIS Ex	SC 21.0646 X	ALL	PDF	12351 KB
United Arab Emirates SGS Gulf Limited ECASEx	24-10-126925/E24-10-131565	ALL	PDF	---
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) D UKEX Category (1) G UKEX Category (M1)	CML 21UKEX2405X	ALL	PDF	313 KB
Control Drawings
Control drawing UL / Control drawing UL		ALL	PDF	37 KB
Declaration of Conformity
EU Declaration of Conformity (P+F)	TDOC-3658BENG	ENG	PDF	184 KB
UKCA-Declaration of conformity / UKCA-Konformitätserklärung	DOC-5296	ALL	PDF	73 KB

Associated Products: KFD2-STC5-Ex2

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Pepperl+Fuchs Inc.
1600 Enterprise Parkway
Twinsburg, OH 44087
United States of America
sales@us.pepperl-fuchs.com
phone +1 330 425-3555

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. Pepperl+Fuchs does not sell personal data.