Switch Amplifier KCD2-SR-Ex2

2-channel isolated barrier
24 V DC supply (Power Rail)
Dry contact or NAMUR inputs
Relay contact output
Line fault detection (LFD)
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

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-SR-Ex2

General specifications
Signal type		Digital 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		≤ 46 mA
Power dissipation		≤ 900 mW
Power consumption		≤ 900 mW
Input
Connection side		field side
Connection		terminals 1+, 2-; 3+, 4-
Rated values		acc. to EN 60947-5-6 (NAMUR)
Open circuit voltage/short-circuit current		approx. 8 V DC / approx. 8 mA
Switching point/switching hysteresis		1.2 ... 2.1 mA / approx. 0.2 mA
Line fault detection		breakage I ≤ 0.1 mA , short-circuit I ≥ 6.5 mA
Pulse/Pause ratio		min. 20 ms / min. 20 ms
Output
Connection side		control side
Connection		terminals 5, 6; 7, 8
Output I		signal ; relay
Output II		signal ; relay
Contact loading		250 V AC/2 A/cos φ > 0.75; 126.5 V AC/4 A/cos φ > 0.75; 30 V DC/2 A resistive load
Minimum switch current		2 mA / 24 V DC
Energized/De-energized delay		≤ 20 ms / ≤ 20 ms
Mechanical life		10⁷ switching cycles
Transfer characteristics
Switching frequency		≤ 10 Hz
Galvanic isolation
Input/Output		reinforced 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		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Output/Output		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Indicators/settings
Display elements		LEDs
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)
Low voltage
	Directive 2014/35/EU	EN 61010-1:2010+A1:2019+A1:2019/AC:2019
Conformity
Electromagnetic compatibility		NE 21:2017 , EN 61326-3-1:2017 , EN IEC 61326-3-2:2018
Degree of protection		IEC 60529:1989+A1:1999+A2:2013
Functional safety		IEC/EN 61508:2010
Input		EN 60947-5-6:2000
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	119 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		BASEEFA 06 ATEX 0092 X
	Marking	II 3(1)G Ex ec nC [ia Ga] IIC T4 Gc , II (1)D [Ex ia Da] IIIC , I (M1) [Ex ia Ma] I
	Input	Ex ia
	Voltage	10.5 V
	Current	13 mA
	Power	34 mW (linear characteristic)
Supply
	Maximum safe voltage	253 V AC (Attention! U_m is no rated voltage.)
Output
	Contact loading	Zone 2 : 50 V AC/2 A/cos φ > 0.75; 30 V DC/2 A resistive load
	Maximum safe voltage	253 V AC (Attention! The rated voltage can be lower.)
Fault indication output
	Maximum safe voltage	40 V DC (Attention! U_m is no rated voltage.)
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 60079-7:2015+A1:2018 , EN 60079-11:2012 , EN IEC 60079-15:2019
International approvals
UL approval		E106378
	Control drawing	116-0477 (cULus)
IECEx approval
	IECEx certificate	IECEx BAS 06.0025 X
	IECEx marking	Ex ec nC [ia Ga] IIC T4 Gc [Ex ia Da] IIIC [Ex ia Ma] I
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	27210121
ECLASS 12.0	27210121
ECLASS 11.0	27210121
ECLASS 10.0.1	27210121
ECLASS 9.0	27210121
ECLASS 8.0	27210121
ECLASS 5.1	27210121
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-SR-Ex2

Function

This isolated barrier is used for intrinsic safety applications.

The device transfers digital signals from NAMUR sensors or dry contacts from the hazardous area to the non-hazardous area.

The proximity sensor or the mechanical contact controls the control side load for a relay contact output. The device output changes the state when the input signal changes the state.

Via switches the mode of operation can be reversed and the line fault detection can be switched off.

During a fault condition, the relay reverts to its de-energized state and the LEDs indicate the fault according to NAMUR NE 44.

If the device is operated via Power Rail, additionally a collective error message is available.

Due to its compact housing design and low heat dissipation, this device is useful for detecting positions, end stops, and switching states in space-critical applications.

Informative Literature: KCD2-SR-Ex2

Literature	Language	File Type	File Size
Application Report - Biological Cleaning of Wastwater and Secondary Sedimentation Stage	ENG	PDF	566 KB
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 - Sand Trap and Preliminary Sedimentation Stage	ENG	PDF	448 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-SR-Ex2

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	171 KB
Functional Safety Manual	ENG	PDF	2003 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KCD2-SR-Ex2

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3085 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	1903 KB

Approvals: KCD2-SR-Ex2

Certificates	Certificate No.	Language	File Type	File Size
Australia New Zealand SIMTARS Group I	ANZEx 08.2008X	ALL	PDF	258 KB
Baseefa IECEx Certificate of Conformity	IECEx BAS 06.0025X	ALL	LINK	---
Brasil TUV Rheinland Brazil	TÜV 13.1156 X	ALL	PDF	1291 KB
Canada UL cUL	E106378 cUL (QUZW7)	ALL	LINK	---
Canada UL cUL	E106378 cUL (QVAJ7)	ALL	LINK	---
China SITIIAS CCC Ex Certificate	2021322316004215 (Bintan)	ALL	PDF	1338 KB
DNV Marine	TAA00001WX	ALL	PDF	106 KB
Europe Baseefa ATEX Category (1) D ATEX Category 3 (1) G ATEX Category (M1)	Baseefa 06 ATEX 0092X	ALL	PDF	137 KB
India PESO (India) CCOE	A/P/HQ/KA/104/5968 (P546363)	ALL	PDF	83 KB
Korea KOSHA	21-AV4BO-0190X	ALL	PDF	178 KB
South Africa MASC	MASC MS/17-0859X	ALL	PDF	772 KB
USA UL	E106378 UL (QUZW)	ALL	LINK	---
USA UL	E106378 UL (QVAJ)	ALL	LINK	---
USA UL	CoC 20210104 E106378 RepRef 20201218	ALL	PDF	321 KB
United Arab Emirates SGS Gulf Limited ECASEx	23-12-96800/E23-12-099915/NB0002	ALL	PDF	603 KB
United Kingdom Baseefa UK-Type Examination Certificate	BAS21UKEX0011X	ALL	PDF	136 KB
Worldwide TUV Rheinland Functional Safety Certificate	968/FSP 2150.02/21	ALL	PDF	620 KB
Control Drawings
Control drawing UL / Control drawing UL		ALL	PDF	130 KB
Declaration of Conformity
EU Declaration of Conformity (P+F)	TDOC-5252CENG	ENG	PDF	180 KB
UK Declaration of Conformity (P+F) / UK-Konformitäterklärung (P+F)	DOC-5599	ALL	PDF	98 KB

Associated Products: KCD2-SR-Ex2

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

	F-NR3-Ex1 NAMUR Resistor Network
	1-channel, Dry contact input, For line fault detection (LFD)pa

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

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