Switch Amplifier KFD2-SH-Ex1

1-channel isolated barrier
24 V DC supply (Power Rail)
Input for approved dry contacts or SN/S1N sensors
Relay contact output
Fault indication output
Line fault detection (LFD)
Up to SIL 3 acc. to IEC/EN 61508
Up to PL d acc. to EN/ISO 13849

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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 KFD2-SH-Ex1

General specifications
Signal type		Digital Input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 3
Performance level (PL)		PL d
Supply
Connection		Power Rail or terminals 22+, 23+, 24-
Rated voltage		20 ... 35 V DC
Ripple		≤ 10 %
Rated current		≤ 130 mA
Power dissipation		2.1 W
Power consumption		max. 2.3 W
Input
Connection side		field side
Connection		terminals 10+, 12-
Open circuit voltage/short-circuit current		approx. 8.4 V DC / approx. 11.7 mA
Lead resistance		≤ 50 Ω, in hazardous area cable capacitances and inductivities are to be taken into account
Switching point
	Relay de-energized	I < 2.1 mA and I > 5.9 mA
	Relay energized	2.8 mA < I < 5.3 mA
Response delay		≤ 1 ms
Output
Connection side		control side
Connection		output I: terminals 13, 14 ; output II: terminals 15, 21 ; output III: terminals 16+, 17-
Output I		relay , signal
	Contact loading	50 V AC/1 A/cos φ > 0.7; 24 V DC/1 A resistive load
	Mechanical life	50 x 10⁶ switching cycles
Output II		relay , signal
	Contact loading	50 V AC/1 A/cos φ > 0.7; 24 V DC/1 A resistive load
	Mechanical life	50 x 10⁶ switching cycles
Output III		electronic output, passive , fault signal
	Rated voltage	10 ... 30 V DC
	Signal level	1-signal: (L+) -2.5 V (7 mA, short-circuit proof) / 0-signal: blocked output (Leakage current ≤ 10 µA)
Transfer characteristics
Switching frequency		5 Hz
Galvanic isolation
Output/power supply		reinforced insulation according to IEC/EN 61010-1, rated insulation voltage 300 V_eff
Mutual output I, II, III		basic insulation according to IEC/EN 61010-1, rated insulation voltage 50 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)
Machinery Directive
	Directive 2006/42/EC	EN/ISO 13849-1:2015
Conformity
Electromagnetic compatibility		NE 21:2017 , EN 61326-3-1:2017
Degree of protection		IEC 60529:2001
Safety		IEC/EN 61508:2010
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 280 g
Dimensions		40 x 107 x 115 mm (1.6 x 4.2 x 4.5 inch) (W x H x D) , housing type C1
	Height	107 mm
	Width	40 mm
	Depth	115 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		PTB 00 ATEX 2042
	Marking	II (1)G [Ex ia Ga] IIC II (1)D [Ex ia Da] IIIC I (M1) [Ex ia Ma] I
	Input	Ex ia
	Voltage	9.56 V
	Current	16.8 mA
	Power	41 mW (linear characteristic)
Supply
	Maximum safe voltage	40 V AC/DC (Attention! The rated voltage can be lower.)
Output
	Maximum safe voltage	output I/output II: 253 V AC/DC (Attention! U_m is no rated voltage.) output III: 60 V AC/DC (Attention! U_m is no rated voltage.)
Certificate		TÜV 99 ATEX 1493 X
	Marking	II 3G Ex ec nC 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+AC:2020 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012 , EN IEC 60079-15:2019
International approvals
FM approval
	Control drawing	116-0158
IECEx approval
	IECEx certificate	IECEx TUN 19.0013X
	IECEx marking	Ex ec nC 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	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: KFD2-SH-Ex1

Function

This isolated barrier is used for intrinsic safety applications.

The device transfers digital signals (SN/S1N proximity sensors or approved dry contacts) from a hazardous area to a safe area.

The input controls one relay contact output with 3 NO contacts (one output is in series to the both output relays for the safety function), one relay contact output with one NO contact, and one passive transistor output.

Unlike an SN/S1N series proximity sensor, a mechanical contact, requires a 10 kΩ resistor to be placed across the contact in addition to a 1.5 kΩ resistor in series.

Lead breakage (LB) and short circuit (SC) conditions of the control circuit are continuously monitored.

During an fault condition, the fault indication output energizes and outputs I and II de-energize.

For safety applications up to SIL3, output I must be used. For safety applications up to SIL2, output I and output II can be used.

Informative Literature: KFD2-SH-Ex1

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: KFD2-SH-Ex1

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	169 KB
Functional Safety Manual	ENG	PDF	1965 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KFD2-SH-Ex1

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	186 KB
CAD Portal / CAD Portal	ALL	LINK	---
CAE
EPLAN macro EDZ / EPLAN Makro EDZ	ALL	EDZ	87 KB

Approvals: KFD2-SH-Ex1

Certificates	Certificate No.	Language	File Type	File Size
Europe PTB ATEX Category (1) D ATEX Category (M1) ATEX Category (1) G	PTB 00 ATEX 2042	ALL	PDF	513 KB
Europe TUV II 3 G	TÜV 99 ATEX 1493X	ALL	PDF	2538 KB
Japan TIIS	TC16173	ALL	PDF	1623 KB
South Africa MASC	MASC S/22-8373X	ALL	PDF	715 KB
TUV Nord IECEx Certificate of Conformity	IECEx TUN 19.0013X	ALL	LINK	---
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) D UKEX Category (1) G UKEX Category (M1)	CML 23UKEX2155	ALL	PDF	167 KB
Worldwide TÜV SÜD Functional Safety Assessment	PM85769T	ALL	PDF	797 KB
Control Drawings
Control drawing FM / Control drawing FM		ALL	PDF	71 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-0075E	ALL	PDF	111 KB

Associated Products: KFD2-SH-Ex1

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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.