"SMART Transmitter Power Supply

KFD2-STC4-Ex1"

• 1-channel isolated barrier
• 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
• Terminals with test points
• Up to SIL 2 acc. to IEC 61508

Please Sote: 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.

Product Description
Input 0/4 mA ... 20 mA
Output 0/4 mA ... 20 mA
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	20 ... 35 V DC
Ripple	within the supply tolerance
Power dissipation	1.4 W
Power consumption	1.8 W
Input
Connection side	field side
Connection	terminals 1+, 2-, 3 or 5-, 6+
Input signal	0/4 ... 20 mA
Voltage drop	≤ 2.4 V at 20 mA (terminals 5, 6)
Input resistance	≤ 64 Ω terminals 2-, 3 ; ≤ 500 Ω terminals 1+, 3 (250 Ω load)
Available voltage	≥ 16 V at 20 mA, terminals 1+, 3
Output
Connection side	control side
Connection	terminals 7-, 8+, 9
Load	0 ... 800 Ω at 20 mA
Output signal	0/4 ... 20 mA (overload > 25 mA)
Ripple	max. 50 µA rms
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: bandwidth with 0.5 Vpp signal 0 ... 7.5 kHz (-3 dB) safe area to hazardous area: bandwidth with 0.5 Vpp signal 0.3 ... 7.5 kHz (-3 dB)
Settling time	200 µs
Rise time/fall time	20 µs
Galvanic isolation
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 21:2011
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. 200 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
Data for application in connection with hazardous areas
EU-type examination certificate	BAS 99 ATEX 7025 X
Marking	II (1)G [Ex ia Ga] IIC ,  II (1)D [Ex ia Da] IIIC ,  I (M1) [Ex ia Ma] I
Input	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Supply
Maximum safe voltage	250 V (Attention! The rated voltage can be lower.)
Equipment	terminals 1+, 3-
Voltage Uo	25.4 V
Current Io	86.8 mA
Power Po	551 mW
Equipment	terminals 2-, 3
Current Io/Current Ii	74 mA / 115 mA
Current Ii	115 mA
Voltage Uo	3.5 V
Current Io	74 mA
Power Po	64 mW
Equipment	terminals 1+, 2 / 3-
Voltage Ui	30 V
Current Ii	115 mA
Voltage Uo	25.4 V
Current Io	115 mA
Power Po	584 mW
Equipment	terminals 5-, 6+
Voltage Ui	30 V
Current Ii	115 mA
Voltage Uo	8.7 V
Current Io	0 mA
Output
Maximum safe voltage	250 V (Attention! The rated voltage can be lower.)
Certificate	TÜV 99 ATEX 1499 X
Marking	II 3G Ex nA II T4 [device in zone 2]
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 , EN 60079-15:2010
International approvals
UL approval
Control drawing	116-0428 (cULus)
IECEx approval	IECEx BAS 04.0015X
	IECEx CML 15.0055X
Approved for	[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
	Ex nA IIC T4 Gc
General information
Supplementary information	Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see - www.control-automation.com/
Accessories
Optional accessories	- power feed module KFD2-EB2(.R4A.B)(.SP)
	- universal power rail UPR-03(-M)(-S)
	- profile rail K-DUCT-BU(-UPR-03)