SMART Transmitter Power Supply KCD2-STC-Ex1

1-channel isolated barrier
24 V DC supply (Power Rail)
Input for 2-wire SMART transmitters and current sources
Output for 4 mA ... 20 mA or 1 V ... 5 V
Housing width 12.5 mm
Up to SIL 2 (SC 3) acc. to IEC/EN 61508

Technical Data
Details
Product Documentation
Design / Simulation
Approvals
Associated Products

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 KCD2-STC-Ex1

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 9+, 10-
Rated voltage		19 ... 30 V DC
Ripple		≤ 10 %
Rated current		≤ 45 mA at 24 V and 20 mA source mode output
Power dissipation		≤ 800 mW
Power consumption		≤ 1.1 W
Input
Connection side		field side
Connection		terminals 1+, 2-; 3+, 4-
Input signal		4 ... 20 mA limited to approx. 26 mA
Open circuit voltage/short-circuit current		terminals 1+, 2-: 22 V / 26 mA
Voltage drop		terminals 3+, 4- : approx. 5 V
Available voltage		terminals 1+, 2-: ≥ 15 V at 20 mA ; ≥ 18 V at 4 mA
Output
Connection side		control side
Connection		terminals 5-, 6+ terminals 5-, 8+ for HART resistor
Load		0 ... 350 Ω (source mode)
Output signal		source mode: 4 ... 20 mA or 1 ... 5 V (internal resistor: 250 Ω, 0.1 %) sink mode: 4 ... 20 mA, operating voltage 10 ... 30 V For additional internal or external loads (e. g. terminal +8) the voltage drop has to be considered, e. g. 250 Ω x 20 mA = 5 V.
Ripple		20 mV _rms
Transfer characteristics
Deviation		at 20 °C (68 °F) < 0.1 % of full scale, incl. non-linearity and hysteresis (source mode and sink mode 4 ... 20 mA) ≤ ± 0.2 % incl. non-linearity and hysteresis (source mode 1 ... 5 V)
	Influence of ambient temperature	< 2 µA/K (-20 ... 70 °C (-4 ... 158 °F)); < 4 µA/K (-40 ... -20 °C (-40 ... -4 °F)) (source mode and sink mode 4 ... 20mA) < 0.5 mV/K (-20 ... 70 °C (-4 ... 158 °F)); < 1 mV/K (-40 ... -20 °C (-40 ... -4 °F)) (source mode 1...5 V)
Frequency range		field side into the control side: bandwidth with 0.5 V_pp signal 0 ... 3 kHz (-3 dB) control side into the field side: bandwidth with 0.5 V_pp signal 0 ... 3 kHz (-3 dB)
Settling time		≤ 50 ms
Rise time/fall time		≤ 10 ms
Galvanic isolation
Input/Output		basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Input/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Output/power supply		basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Indicators/settings
Display elements		LED
Control elements		DIP switch
Configuration		via DIP switches
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 21:2017 EN 61326-3-2:2018
Degree of protection		IEC 60529:2001
Protection against electrical shock		UL 61010-1:2019
Ambient conditions
Ambient temperature		-40 ... 70 °C (-40 ... 158 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 100 g
Dimensions		12.5 x 119 x 114 mm (0.5 x 4.7 x 4.5 inch) (W x H x D) , housing type A2
	Height	124 mm
	Width	12.5 mm
	Depth	114 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		CESI 06 ATEX 021 X
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
	Input	Ex ia
Supply
	Maximum safe voltage	250 V AC (Attention! U_m is no rated voltage.)
Equipment		terminals 1+, 2-
	Voltage	25.2 V
	Current	100 mA
	Power	630 mW
	Internal capacitance	5.7 nF
	Internal inductance	negligible
Equipment		terminals 3+, 4-
	Voltage	30 V
	Current	128 mA
	Power	1000 mW
	Voltage	7.2 V
	Current	100 mA
	Power	25 mW
	Internal capacitance	5.7 nF
	Internal inductance	negligible
Certificate		CESI 19 ATEX 021 X
	Marking	II 3G Ex ec IIC T4 Gc
Galvanic isolation
	Input/Output	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
	Input/power supply	safe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN IEC 60079-0:2018 , EN 60079-11:2012 , EN IEC 60079-7:2015+A1:2018
International approvals
FM approval
	FM certificate	FM 18 CA 0116 X , FM 19 US 0117 X
	Control drawing	116-0469 (cFMus)
UL approval		E106378
	Control drawing	116-0459 (cULus)
IECEx approval
	IECEx certificate	IECEx CES 06.0001X
	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: KCD2-STC-Ex1

Function

This isolated barrier is used for intrinsic safety applications.

The device supplies 2-wire SMART transmitters in a hazardous area, 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 safe area and are transferred bi-directionally.

Selectable output of current source, sink mode, or voltage output is available via DIP switches.

If the HART communication resistance in the loop is too low, the internal resistance of 250 Ω between terminals 6 and 8 can be used.

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

Product Documentation: KCD2-STC-Ex1

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	172 KB
Functional Safety Manual	ENG	PDF	2002 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KCD2-STC-Ex1

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3085 KB

Approvals: KCD2-STC-Ex1

Certificates	Certificate No.	Language	File Type	File Size
Australia SIMTARS Group I	ANZEx 08.2009X	ALL	PDF	424 KB
Brasil TUV Rheinland Brazil	TÜV 23.1083 X (Vietnam)	ALL	PDF	466 KB
Brasil TUV Rheinland Brazil	TÜV 13.1149 X (Singapore)	ALL	PDF	444 KB
Canada FM	FM18CA0116X	ALL	PDF	2690 KB
China SITIIAS CCC Ex Certificate	2020322316001218 (Singapore)	ALL	PDF	2226 KB
DNV Marine	TAA00001WX	ALL	PDF	106 KB
Europe CESI ATEX Category 3 G Certificate of Compliance	CESI 19 ATEX 021 X	ALL	PDF	447 KB
Europe CESI II (1) D II (1) G I (M1) ATEX	CESI 06 ATEX 021 X	ALL	PDF	622 KB
India PESO (India) CCOE	A/P/HQ/KA/104/6027 (P567660)	ALL	PDF	100 KB
Japan TIIS	TC22939X	ALL	PDF	146 KB
Korea KOSHA [Ex ia]	17-AV4BO-191	ALL	PDF	206 KB
SITIIAS CCC Ex Certificate	2024322316005880 (Vietnam)	ALL	PDF	2122 KB
South Africa MASC	MASC MS/18-0958X	ALL	PDF	656 KB
USA Canada UL cULus Hazardous Location Certificate of Compliance UL E106378 UL	CoC E106378 RepRef E106378-20190710	ALL	PDF	433 KB
USA FM	FM19US0117X	ALL	PDF	2447 KB
United Arab Emirates SGS Gulf Limited ECASEx	23-12-96801/E23-12-099921/NB0002	ALL	PDF	603 KB
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) D UKEX Category (1) G UKEX Category (M1)	CML 21UKEX2940X	ALL	PDF	168 KB
Worldwide CESI IECEx Certificate of Conformity	IECEx CES 06.0001X	ALL	LINK	---
Control Drawings
Certificates Product-Specific / Zertifikate produktspezifisch		ALL	PDF	142 KB
Certificates Product-Specific / Zertifikate produktspezifisch		ALL	PDF	143 KB
Declaration of Conformity
EU Declaration of Conformity (P+F)	TDOC-7481_ENG	ENG	PDF	232 KB
UK Declaration of Conformity (P+F)	TDOC-7489_ENG	ENG	PDF	202 KB

Associated Products: KCD2-STC-Ex1

Matching System Components

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	UPR-03 Universal Power Rail
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	UPR-03-S Universal Power Rail
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	UPR-03-M Universal Power Rail
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	K-DUCT-BU Profile Rail
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	K-DUCT-BU-UPR-03 Profile Rail
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Accessories

	KC-ST-5GN Terminal Block
	2-pin screw terminal, For KC modules of K-System, Packaging unit: 5 pieces greenpa

	KC-STP-5GN Terminal Block with Test Plug Socket
	2-pin screw terminal, For KC modules of K-System, Integrated test sockets for connection of HART communicators, Packaging unit: 5 pieces greenpa

	KC-STP-5BU Terminal Block with Test Plug Socket
	2-pin screw terminal, For KC modules of K-System, Integrated test sockets for connection of HART communicators, Packaging unit: 5 pieces bluepa

	KF-CP Coding Pins
	Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa

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Pepperl+Fuchs SE
Lilienthalstraße 200
68307 Mannheim
Germany
info@de.pepperl-fuchs.com
phone +49 621 776-0

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.