SMART Current Driver KCD2-SCD-Ex1.ES

1-channel isolated barrier
24 V DC supply (Power Rail)
Current output up to 650 Ω load
HART-IP and valve positioner
Line fault detection (LFD)
Housing width 12.5 mm
Up to SIL 3 acc. to IEC/EN 61508

Technical Data
Details
Informative Literature
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-SCD-Ex1.ES

General specifications
Signal type		Analog output
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 3
Supply
Connection		Power Rail or terminals 9+, 10-
Rated voltage		19 ... 30 V DC
Ripple		≤ 10 %
Rated current		≤ 33 mA at 24 V
Power dissipation		≤ 700 mW at 20 mA and 500 Ω load
Power consumption		≤ 800 mW
Input
Connection side		control side
Connection		terminals 5-, 6+
Input signal		4 ... 20 mA , limited to approx. 25 mA
Input voltage		open loop voltage of the control system < 30 V, in line fault mode < 60 V
Voltage drop		approx. 6 V at 20 mA
Input resistance		> 100 kΩ, with field wiring open or < 50 Ω
Output
Connection side		field side
Connection		terminals 1+, 2-
Voltage		≥ 13 V at 20 mA
Current		4 ... 20 mA
Load		100 ... 650 Ω
Ripple		20 mV _rms
Line fault detection		field wiring open or < 50 Ω and test current < 2 mA
Transfer characteristics
Deviation		at 20 °C (68 °F), 4 ... 20 mA < 0.1 % of full scale, incl. non-linearity and hysteresis
	Influence of ambient temperature	< 2 µA/K (-20 ... 70 °C (-4 ... 158 °F)); < 4 µA/K (-40 ... -20 °C (-40 ... -4 °F))
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 1 mA_pp signal 0 ... 3 kHz (-3 dB)
Rise time		10 to 90 % ≤ 10 ms
Galvanic isolation
Input/Output		basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Input/power supply		basic insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Output/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Indicators/settings
Display elements		LEDs
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
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 124 x 114 mm (0.5 x 4.9 x 4.5 inch) (W x H x D) , housing type A2
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 20 ATEX 016 X
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
	Output	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 20 ATEX 017 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
	Output/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 60079-7:2015
International approvals
UL approval		E106378
	Control drawing	116-0471 (cULus)
IECEx approval
	IECEx certificate	IECEx CES 20.0009X
	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	27210120
ECLASS 12.0	27210120
ECLASS 11.0	27210120
ECLASS 10.0.1	27210120
ECLASS 9.0	27210120
ECLASS 8.0	27210120
ECLASS 5.1	27210120
ETIM 9.0	EC002653
ETIM 8.0	EC002653
ETIM 7.0	EC002653
ETIM 6.0	EC002653
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

Details: KCD2-SCD-Ex1.ES

Function

This isolated barrier is used for intrinsic safety applications.

The device repeats the input signal from a control system to drive HART I/P converters, electrical valves, and positioners located in a hazardous area.

Digital signals are superimposed on the analog values at the field side or control side and are transferred bi-directionally.

The current is transferred via a DC/DC converter and repeated at the output terminals.

An open or short field circuit presents a high impedance to the control side to allow alarm conditions to be monitored by the control system.

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

A fault is signalized by LEDs and a separate collective error message output.

Informative Literature: KCD2-SCD-Ex1.ES

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-SCD-Ex1.ES

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	153 KB
Functional Safety Manual	ENG	PDF	1973 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KCD2-SCD-Ex1.ES

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3087 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	1960 KB

Approvals: KCD2-SCD-Ex1.ES

Certificates	Certificate No.	Language	File Type	File Size
CESI IECEx Certificate of Conformity	IECEx CES 20.0009X	ALL	LINK	---
Canada, USA UL Hazardous Location Certificate of Compliance cULus UL E106378	CoC E106378 - RepRef E106378-20200309	ALL	PDF	414 KB
DNV Marine	TAA00001WX	ALL	PDF	106 KB
Europe CESI ATEX ATEX Category (M1) ATEX Category (1) D ATEX Category (1) G	CESI 20 ATEX 016X	ALL	PDF	423 KB
Europe CESI ATEX Category 3 G	CESI 20 ATEX 017X	ALL	PDF	368 KB
Worldwide TUV Functional Safety Certificate	No. 20 19716	ALL	PDF	366 KB
Control Drawings
Control drawing UL / Control drawing UL		ALL	PDF	27 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-4819A	ALL	PDF	81 KB

Associated Products: KCD2-SCD-Ex1.ES

Matching System Components

	KFD2-EB2 Power Feed Module
	Interface for Power Rail, Supply current ≤ 4 A, Replaceable fuse, Relay contact output, reversible, LED status indicationpa

	UPR-03 Universal Power Rail
	35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 2 m (6 foot), simple to customize to application space, Eliminates daisy-chainspa

	UPR-03-S Universal Power Rail
	35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 0.8 m (2.6 ft), simple to customize to application space, Eliminates daisy-chainspa

	UPR-03-M Universal Power Rail
	35 mm DIN mounting rail with 3-conductor insert, Provides DC supply voltage to all equipped K-System modules, Standard length 1.6 m (5 foot), simple to customize to application space, Eliminates daisy-chainspa

	K-DUCT-BU Profile Rail
	Cable trunking is integrated in the mounting profile, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Standard length 1.8 m (5.8 ft), simple to customize to application space, With mounting aidspa

	K-DUCT-BU-UPR-03 Profile Rail
	Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of safe and hazardous signals, No additional cable guides necessary, Provides DC supply voltage to all equipped K-System modules, Standard length 1.8 m (5.8 ft), simple to customize to application space, With end caps UPR-E, cover and mounting aidspa

Accessories

	KC-ST-5GN Terminal Block
	2-pin screw terminal, For KC modules of K-System, 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

General Notes Relating to Pepperl+Fuchs Product Information

Quick Links

Selector for Safety Products

Choose from various selection criteria like safety integrity level, performance level, device function, and signal type and find the SIL/PL assessed device that you are looking for.

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.