Switch Amplifier KCD2-ST-2

2-channel signal conditioner
24 V DC supply (Power Rail)
Dry contact or NAMUR inputs
2 active transistor outputs
Reversible mode of operation
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
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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 KCD2-ST-2

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		30 ... 20 mA + I_out
Power dissipation		≤ 800 mW including maximum power dissipation in the output
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. 10 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. 100 µs / min. 100 µs
Output
Connection side		control side
Connection		terminals 5, 6
Rated voltage		30 V DC
Rated current		50 mA
Response time		≤ 200 µs
Signal level		1-signal: (supply voltage) - 3 V max. for 50 mA 0-signal: blocked output (off-state current ≤ 10 µA)
Output I		signal ; Transistor
Output II		signal ; Transistor
Collective error message		Power Rail
Transfer characteristics
Switching frequency		≤ 5 kHz
Galvanic isolation
Input/Output		reinforced insulation acc. to EN 50178, rated insulation voltage 300 V_eff
Input/power supply		reinforced insulation acc. to EN 50178, rated insulation voltage 300 V_eff
Output/power supply		not available , common pole terminal 9+
Output/Output		not available , common pole terminal 9+
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)
Conformity
Electromagnetic compatibility		NE 21:2011
Degree of protection		IEC 60529:2001
Protection against electrical shock		IEC 61010-1:2010
Input		EN 60947-5-6:2000
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. 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
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-ST-2

Function

This signal conditioner provides the galvanic isolation between field circuits and control circuits.

The device transfers digital signals (NAMUR sensors or dry contacts) from the field to the control system.

Each input controls an active transistor output.

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

A fault is signalized by LEDs acc. to NAMUR NE44 and a separate collective error message output.

Informative Literature: KCD2-ST-2

Literature	Language	File Type	File Size
Application Report - Biological Cleaning of Wastwater and Secondary Sedimentation Stage	ENG	PDF	566 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

Product Documentation: KCD2-ST-2

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	41 KB
Functional Safety Manual	ENG	PDF	1999 KB
Manuals
System Manual	ENG	PDF	3694 KB

Design / Simulation: KCD2-ST-2

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3088 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	1992 KB

Approvals: KCD2-ST-2

Certificates	Certificate No.	Language	File Type	File Size
DNV Marine	TAA00001WX	ALL	PDF	106 KB
exida Functional Safety Assessment	P+F 1005-041-C R032 V1R0	ALL	PDF	757 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-0076C	ALL	PDF	48 KB

Associated Products: KCD2-ST-2

Matching System Components

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	UPR-03 Universal Power Rail
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	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
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	K-DUCT-GY Profile Rail
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	K-DUCT-GY-UPR-03 Profile Rail
	Cable trunking with integrated Power Rail UPR-03, Safe spacious separation of field and control 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
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	KF-CP Coding Pins
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Pepperl+Fuchs GB Ltd.
77 Ripponden Road
Oldham OL1 4EL, Lancs.
United Kingdom
sales@gb.pepperl-fuchs.com
phone +44 161 6336431

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.