Voltage Repeater KFD2-VR4-Ex1.26

1-channel isolated barrier
24 V DC supply (Power Rail)
Voltage input 0 V ... -20 V
Vibration sensor inputs
Voltage/current field supply
Voltage output 0 V ... -20 V
Up to SIL 2 acc. to IEC/EN 61508

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-VR4-Ex1.26

General specifications
Signal type		Analog input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Supply
Connection		Power Rail or terminals 11+, 12-
Rated voltage		19 ... 30 V DC
Ripple		within the supply tolerance
Power dissipation		≤ 1.2 W
Power consumption		≤ 1.6 W
Input
Connection side		field side
Connection		terminals 4 (common), 1, 3 and 5 (supply -), 2 and 6 (signal -)
Input resistance		10 kΩ terminals 4 (common), 6-/2-
Output current		terminals 4 (common), 5-: > 10 mA at -21 V or > 20 mA at -18 V terminals 4 (common), 1-: 5.3 mA ±0.4 mA at -10 V terminals 4 (common), 3-: 3.6 mA ±0.7 mA at -10 V, 20 °C (68 °F)
Transmission range		-20 ... 0 V
Output
Connection side		control side
Connection		terminals 7-, 8+
Voltage		-20 ... 0 V
Load		≥ 9 kΩ (3-wire sensor), ≥ 2 kΩ (2-wire sensor)
Output resistance		24 Ω typ., 27 Ω maximum Since this is much less than the end-to-end resistance of a zener barrier, it may be necessary to specify a monitor intended for use without a barrier. Please follow the advice of the monitor manufacturer.
Transfer characteristics
Cut-off frequency		10 kHz (-0,1 dB) 20 kHz (-1 dB)
Deviation		DC transfer error (with 10 kΩ load) < 10mV
	After calibration	additional error with AC superimposed is ±5 mV at 20 °C (68 °F) at any point within the span, provided that the alternating component of the input voltage is not excessive, e. g. - square waves (0 ... 20 kHz): 5 V_pp - sine waves (0 ... 20 kHz): the full span of 20 V_pp (= 100 g peak acceleration at 100 mV/g) is acceptable.
	Influence of ambient temperature	(< 100 ppm of span)/K at any point within the span
Time delay relative to input		7.1 ±0.3 µs
Ripple		in 200 kHz bandwidth < 20 mV_rms in 20 kHz bandwidth < 3 mV_rms
Galvanic isolation
Output/power supply		functional insulation, rated insulation voltage 50 V AC
Indicators/settings
Display elements		LED
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 IEC 61326-3-2:2018
Degree of protection		IEC 60529
Protection against electrical shock		UL 61010-1
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 125 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		BAS 02 ATEX 7206
	Marking	II (1)G [Ex ia Ga] IIC , II (1)D [Ex ia Da] IIIC
	Input	Ex ia Ga, Ex ia Da
	Voltage	-26.4 V
	Current	90 mA
	Power	570 mW
Supply
	Maximum safe voltage	253 V (Attention! The rated voltage can be lower.)
Output
	Maximum safe voltage	253 V (Attention! The rated voltage is lower.)
EU-type examination certificate		DMT 01 ATEX E 133
	Marking	I (M1) [Ex ia] I
Certificate		TÜV 99 ATEX 1499 X
	Marking	II 3G Ex nA II T4
Galvanic isolation
	Input/Output	safe galvanic isolation acc. to IEC 60079-11, voltage peak value 375 V
	Input/power supply	safe galvanic isolation acc. to IEC 60079-11, voltage peak value 375 V
Directive conformity
	Directive 2014/34/EU	EN 60079-0:2012+A11:2013 , EN 60079-11:2012 , EN 60079-15:2010 , EN 50303:2000
International approvals
UL approval
	Control drawing	116-0316 (cULus)
IECEx approval
	IECEx certificate	IECEx BAS 05.0078 IECEx BAS 10.0085X
	IECEx marking	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I Ex nA II 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	27210125
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: KFD2-VR4-Ex1.26

Function

This isolated barrier is used for intrinsic safety applications. It provides a floating output to power a vibration sensor (e. g., Bently Nevada) or accelerometer in a hazardous area and transfers the voltage signal from that sensor to the safe area.

The device is designed to provide a voltage or current supply to the vibration sensor. Depending on connection the barrier provides 3.6 mA, 5.3 mA, or 8.9 mA supply current for 2-wire sensors, or 18 V at 20 mA for 3-wire sensors.

Informative Literature: KFD2-VR4-Ex1.26

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: KFD2-VR4-Ex1.26

Safety and Security Documentation	Language	File Type	File Size
Instruction manual	ENG	PDF	167 KB
Functional Safety Manual	ENG	PDF	1975 KB
Manuals
Manual	ENG	PDF	3685 KB

Design / Simulation: KFD2-VR4-Ex1.26

CAD	Language	File Type	File Size
CAD 3-D / CAD 3-D	ALL	STP	2510 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	1374 KB

Approvals: KFD2-VR4-Ex1.26

Certificates	Certificate No.	Language	File Type	File Size
Australia Test Safe	ANZEx 17.3006X	ALL	PDF	6788 KB
Baseefa IECEx Certificate of Conformity	IECEx BAS 05.0078	ALL	LINK	---
Baseefa Type n IECEx Certificate of Conformity	IECEx BAS 10.0085X	ALL	LINK	---
Brasil TUV Rheinland Brazil	TÜV 14.0355	ALL	PDF	1153 KB
Canada UL cUL	E106378 cUL (QVAJ7)	ALL	LINK	---
Canada UL cUL	E106378 cUL (QUZW7)	ALL	LINK	---
China SITIIAS CCC Ex Certificate	2020322316001400 (Singapore)	ALL	PDF	1013 KB
DNV Marine	TAA00001WX	ALL	PDF	106 KB
Europe Baseefa II (1) D II (1) G	BAS 02 ATEX 7206	ALL	PDF	3113 KB
Europe DEKRA EXAM ATEX Category (M1)	DMT 01 ATEX E 133	ALL	PDF	1310 KB
Europe TUV Nord ATEX Category 3 G	TÜV 99 ATEX 1499X	ALL	PDF	1999 KB
India PESO (India) CCOE	A/P/HQ/KA/104/5926 (P523617)	ALL	PDF	77 KB
Japan TIIS	TC22384	ALL	PDF	1779 KB
Korea KOSHA	12-AV4BO-0394	ALL	PDF	1179 KB
Pepperl+Fuchs Functional Safety Assessment	FS-0040PF-20B	ALL	PDF	107 KB
South Africa MASC	MASC M/17-0784	ALL	PDF	253 KB
South Africa MASC	MASC MS/17-0877	ALL	PDF	230 KB
USA UL	E106378 UL (QUZW)	ALL	LINK	---
USA UL	E106378 UL (QVAJ)	ALL	LINK	---
United Arab Emirates SGS Gulf Limited ECASEx	24-10-126935/E24-10-131575	ALL	PDF	603 KB
United Kingdom CML UK-Type Examination Certificate UKEX Category (1) G UKEX Category (1) D	CML 21UKEX2942	ALL	PDF	155 KB
Control Drawings
Control drawing UL / Control drawing UL		ALL	PDF	41 KB
Declaration of Conformity
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)	DOC-4401A	ALL	PDF	84 KB
UKCA-Declaration of conformity / UKCA-Konformitätserklärung	DOC-5679	ALL	PDF	73 KB

Associated Products: KFD2-VR4-Ex1.26

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

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

	KF-ST-5BU Terminal Block
	3-pin screw terminal, For KF 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

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 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.