SMART Transmitter Power Supply KFD2-STC5-2

2-channel signal conditioner
24 V DC supply (Power Rail)
Input 2-wire and 3-wire SMART transmitters and 2-wire SMART current sources
Output 0/4 mA ... 20 mA current sink/current source
Terminals with test points
Up to SIL 2 acc. to IEC 61508

Datasheet
Function
Documents
CAD+CAE
Approvals+Certificates
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 KFD2-STC5-2

Product Description
Input 0/4 mA ... 20 mA Output 0/4 mA ... 20 mA (current sink)

General specifications
Signal type		Analog input
Functional safety related parameters
Safety Integrity Level (SIL)		SIL 2
Supply
Connection		Power Rail or terminals 14+, 15-
Rated voltage		18 ... 30 V DC
Ripple		within the supply tolerance
Power dissipation		≤ 1.4 W at maximum load
Power consumption		≤ 2.6 W at maximum load
Input
Connection side		field side
Connection		terminals 1+, 2-, 3; 4+, 5-, 6
Input signal		0/4 ... 20 mA
Open circuit voltage/short-circuit current		terminals 1+, 3; 4+, 6: 23 V / 25 mA
Input resistance		max. 265 Ω terminals 2-, 3; 5-, 6 , max. 330 Ω terminals 1+, 3; 4+, 6
Available voltage		≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3; 4+, 6
Output
Connection side		control side
Connection		terminals 7+, 8-, 9-; 10+, 11-, 12- (sink) terminals 7-, 8+, 9+; 10-, 11+, 12+ (source) see additional information
Load		0 ... 600 Ω
Output signal		0/4 ... 20 mA (overload > 25 mA)
Ripple		max. 50 µA _rms
External supply (loop)		2 ... 30 V DC
Transfer characteristics
Deviation		at 20 °C (68 °F), 0/4 ... 20 mA ≤ 10 µA incl. calibration, linearity, hysteresis, loads and fluctuations of supply voltage
	Influence of ambient temperature	≤ 0.25 µA/K
Frequency range		field side into the control side: band width with 1 V_pp signal 0 ... 7.5 kHz (-3 dB) safe area to hazardous area: band width with 1 V_SS signal 0.3 ... 7.5 kHz (-3 dB)
Settling time		200 µs
Rise time/fall time		100 µs
Galvanic isolation
Input/Output		basic insulation according to IEC 61010-1, rated insulation voltage 300 V_eff
Input/power supply		basic insulation according to IEC 61010-1, rated insulation voltage 300 V_eff
Output/power supply		functional insulation, rated insulation voltage 50 V AC
Output/Output		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 21:2012 EN 61326-3-2:2008
Degree of protection		IEC 60529:2001
Protection against electrical shock		UL 61010-1:2012
Ambient conditions
Ambient temperature		-20 ... 60 °C (-4 ... 140 °F)
Mechanical specifications
Degree of protection		IP20
Connection		screw terminals
Mass		approx. 150 g
Dimensions		20 x 124 x 115 mm (0.8 x 4.9 x 4.5 inch) , housing type B2
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.
Accessories
Optional accessories		- power feed module KFD2-EB2(.R4A.B)(.SP) - universal power rail UPR-03(-M)(-S) - profile rail K-DUCT-GY(-UPR-03)

Classifications

System	Classcode
ECLASS 11.0	27210119
ECLASS 10.0.1	27210119
ECLASS 9.0	27210119
ECLASS 8.0	27210119
ECLASS 5.1	27210119
ETIM 8.0	EC001485
ETIM 7.0	EC001485
ETIM 6.0	EC001485
ETIM 5.0	EC001485
UNSPSC 12.1	32101514

Documents: KFD2-STC5-2

Manuals	Language	File Type	File Size
Functional Safety Manual	ENG	PDF	2023 KB
System Manual	ENG	PDF	3524 KB
Handbuch Funktionale Sicherheit	GER	PDF	2037 KB
Systemhandbuch	GER	PDF	3557 KB
Instruction manuals
Инструкции	BUL	PDF	53 KB
Návod k poużití	CZE	PDF	47 KB
Instruktions manual	DAN	PDF	47 KB
Instruction manual	ENG	PDF	41 KB
Kasutusjuhend	EST	PDF	44 KB
Käyttöohje	FIN	PDF	44 KB
Manuel d'instructions	FRA	PDF	79 KB
Betriebsanleitung	GER	PDF	43 KB
Οδηγίες χρήσης	GRE	PDF	55 KB
Handleiding	HOL	PDF	56 KB
Instruction manual / Betriebsanleitung	HRV	PDF	55 KB
Használati útmutató	HUN	PDF	55 KB
Manuale di istruzioni	ITA	PDF	77 KB
Lietošanas pamācība	LAV	PDF	54 KB
Instrukciju vadovas	LIT	PDF	55 KB
Instrukcja obsługi	POL	PDF	57 KB
Manual de instruções	POR	PDF	56 KB
Manual de utilizare	RON	PDF	56 KB
Návod na poużitie	SLK	PDF	115 KB
Manual de instrucciones	SPA	PDF	79 KB
Manual	SWE	PDF	53 KB

CAD+CAE: KFD2-STC5-2

CAD	File Type	File Size
3-D model / 3-D-Modell	STP	3048 KB
CAD Portal / CAD Portal	LINK	---
EPLAN
EPLAN Data Portal / EPLAN Data Portal	LINK	---
EPLAN macro P+F.KFD2-STC5-2.edz / EPLAN-Makro P+F.KFD2-STC5-2.edz	EDZ	101 KB

Approvals+Certificates: KFD2-STC5-2

Statements of compliance	Certificate No.	File Type	File Size
EU-Declaration of conformity / EU-Konformitätserklärung	DOC-3647	PDF	373 KB
UKCA-Declaration of conformity / UKCA-Konformitätserklärung	DOC-5298	PDF	63 KB
Certificates
Belarus Pattern Approval	Nr. 11709	PDF	15640 KB
Canada UL cUL	E106378 cUL (QUZW7)	LINK	---
Canada UL cUL	E106378 cUL (QVAJ7)	LINK	---
EAC Pepperl+Fuchs EAC TP TC 020/2011	EAEC N RU D-DE.PA01.B.95500/21	PDF	748 KB
Russia VNIIMS	DE.C.34.004.A No.64324/1	PDF	10397 KB
USA UL	E106378 UL (QUZW)	LINK	---
USA UL	E106378 UL (QVAJ)	LINK	---
Worldwide TUV Rheinland	968/FSP 1498.00/17 EN	PDF	679 KB

Associated Products: KFD2-STC5-2

Matching System Components

	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

Accessories

	K-250R Measuring resistor
	1-channel, Precision resistor, Conversion of 0 mA ... 20 mA/0 V ... 5 V, Packaging unit: 5 piecespa

	K-500R0%1 Measuring resistor
	1-channel, Precision resistor, Conversion of 4 mA ... 20 mA/2 V ... 10 V, Packaging unit: 5 piecespa

	KF-CP Coding Pins
	Coding of K-System terminal blocks, Coding of LB/FB-System front sockets, Packaging unit: 20 x 6 coding pinspa

Function: KFD2-STC5-2

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

The device supplies 2-wire and 3-wire SMART transmitters, and can also be used with 2-wire SMART current sources.

It transfers the analog input signal as an isolated current value.

Digital signals may be superimposed on the input signal on the field side or on the control side and are transferred bi-directionally.

The device provides a sink mode or a source mode output on the control side terminals.

The device has an internal resistor. Use this resistor if the HART communication resistance in the control circuit is too low.

Test sockets for the connection of HART communicators are integrated into the terminals of the device.

General Notes Relating to Pepperl+Fuchs Product Information

Quick Links

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.