Conductive Switch Amplifier KFD2-ER-Ex1.W.LB

1-channel isolated barrier
24 V DC supply (Power Rail)
Level sensing input
Adjustable range 1 kΩ ... 150 kΩ
Relay contact output
Fault relay contact output
Adjustable time delay up to 10 s
Minimum/maximum control
Line fault detection (LFD)

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 KFD2-ER-Ex1.W.LB

General specifications
Signal type		Digital Input
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		20 ... 30 V DC
Rated current		30 ... 40 mA
Input
Connection side		field side
Connection		terminals 1 (mass), 2 (min), 3 (max)
Control input		min./max. control system: terminals 1, 2, 3 on/off control system: terminals 1, 3
Response sensitivity		1 ... 150 kΩ , adjustable via potentiometer
Output
Connection side		control side
Connection		terminals 7, 8, 9; 10, 11, 12
Switching power		max. 192 W , 2000 VA
Output		signal ; relay
Contact loading		253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load
Time constant for signal damping		0.5 s, 2 s, 5 s, 10 s
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
Indicators/settings
Display elements		LEDs
Control elements		DIP switch potentiometer
Configuration		via DIP switches via potentiometer
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
Conformity
Electromagnetic compatibility		NE 21:2006
Degree of protection		IEC 60529:2001
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals , max. 2.5 mm²
Mass		approx. 150 g
Dimensions		20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) (W x H x D) , housing type B2
	Height	119 mm
	Width	20 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		DMT 00 ATEX E 033
	Marking	II (1)G [EEx ia] IIC [circuit(s) in zone 0/1/2]
	Input	[EEx ia] IIC
	Voltage	10 V
	Current	2.5 mA
	Power	6 mW
Supply
	Maximum safe voltage	40 V DC (Attention! U_m is no rated voltage.)
Output
	Contact loading	253 V AC/2 A/cos φ > 0.7; 40 V DC/2 A resistive load
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
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	EC001447
ETIM 8.0	EC001447
ETIM 7.0	EC001447
ETIM 6.0	EC001447
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

Details: KFD2-ER-Ex1.W.LB

Function

This isolated barrier is used for intrinsic safety applications. It provides the AC measuring voltage for the level sensing electrodes.

Once the measured medium reaches the electrodes, the unit reacts by energizing a form C changeover relay contact.

The module is voltage and temperature stabilized and guarantees a defined switching characteristic.

It can be used for on/off control or minimum/maximum control. A signal delay feature is available and is adjustable between 0.5 s and 10 s.

This module can also monitor the field circuit for lead breakage (LB). LB is indicated by a red LED. If LB monitoring is selected, output II serves as the fault signal output; otherwise, it will follow the function of output I.

Informative Literature: KFD2-ER-Ex1.W.LB

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-ER-Ex1.W.LB

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	49 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KFD2-ER-Ex1.W.LB

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	3123 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	1375 KB

Approvals: KFD2-ER-Ex1.W.LB

Certificates	Cert No.	Language	File Type	File Size
Europe DMT ATEX Category (1) G	DMT 00 ATEX E 033	ALL	PDF	416 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-0979A	ALL	PDF	72 KB

Associated Products: KFD2-ER-Ex1.W.LB

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Pepperl+Fuchs Asia Pte. Ltd.
P+F Building
18 Ayer Rajah Crescent
Singapore 139942
Singapore
sales@sg.pepperl-fuchs.com
phone +65 6779 9091

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.