Intrinsic Safety Barriers

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SMART Transmitter Power Supply KCD2-STC-Ex1-Y1

1-channel isolated barrier
24 V DC supply (Power Rail)
Input for 2-wire SMART transmitters
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
Informative Literature
Product Documentation
Design / Simulation
Approvals
Associated Products
Ask an Expert

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-Y1

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-
Input signal		4 ... 20 mA limited to approx. 26 mA
Open circuit voltage/short-circuit current		22 V / 26 mA
Available voltage		≥ 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 61010-1:2012
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
	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
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 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-7:2015
International approvals
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-Y1

Function

This isolated barrier is used for intrinsic safety applications.

The device supplies 2-wire transmitters in the hazardous area.

The device transfers the analog input signal to the non-hazardous area as an isolated current value.

Digital signals may be superimposed on the input signal on the field side or control side and are transferred bi-directionally.

The output is selected as a current source, current sink, or voltage source via DIP switches.

If the HART communication resistance in the loop is too low, the internal resistance can be used.

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

Informative Literature: KCD2-STC-Ex1-Y1

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: KCD2-STC-Ex1-Y1

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

Design / Simulation: KCD2-STC-Ex1-Y1

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

Approvals: KCD2-STC-Ex1-Y1

Certificates	Certificate No.	Language	File Type	File Size
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
SITIIAS CCC Ex Certificate	2024322316005880 (Vietnam)	ALL	PDF	2122 KB
USA Canada UL cULus Hazardous Location Certificate of Compliance UL E106378 UL	CoC E106378 RepRef E106378-20190710	ALL	PDF	433 KB
Ukraine SERTIS Ex	SC 21.0646 X	ALL	PDF	12351 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	---
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-4564B	ALL	PDF	82 KB
UKCA-Declaration of conformity / UKCA-Konformitätserklärung	DOC-5678	ALL	PDF	73 KB

Associated Products: KCD2-STC-Ex1-Y1

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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.