231364 – Pepperl+Fuchs

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KFD2-STC4-Ex1 SMART Transmitter Power Supply “P+F”

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/EN 61508
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 O terminals 2-, 3 ; = 500 O terminals 1+, 3 (250 O load)
Available voltage = 16 V at 20 mA terminals 1+, 3
Output
Connection side control side
Connection terminals 7-, 8+, 9
Load 0 … 800 O 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)
control side into the field side: 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
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) , (W x H x D) 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 7060 X
Marking Ex-Hexagon II (1)G [Ex ia Ga] IIC , Ex-Hexagon II (1)D [Ex ia Da] IIIC , Ex-Hexagon 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 25.4 V
Current 86.8 mA
Power 551 mW
Internal capacitance 12 nF
Internal inductance 0 mH
Equipment terminals 2-, 3
Current 74 mA / 115 mA
Current 115 mA
Voltage 3.5 V
Current 74 mA
Power 64 mW
Equipment terminals 1+, 2 / 3-
Voltage 30 V
Current 115 mA
Voltage 25.4 V
Current 115 mA
Power 584 mW
Equipment terminals 5-, 6+
Voltage 30 V
Current 115 mA
Voltage 8.7 V
Current 0 mA
Output
Maximum safe voltage 250 V (Attention! The rated voltage can be lower.)
Certificate TÜV 99 ATEX 1499 X
Marking Ex-Hexagon 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 certificate IECEx BAS 04.0016X
IECEx CML 15.0055X
IECEx marking [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.pepperl-fuchs.com.
Classifications
System Classcode
ECLASS 13.0 27210119
ECLASS 12.0 27210119
ECLASS 11.0 27210119
ECLASS 10.0.1 27210119
ECLASS 9.0 27210119
ECLASS 8.0 27210119
ECLASS 5.1 27210119
ETIM 9.0 EC001485
ETIM 8.0 EC001485
ETIM 7.0 EC001485
ETIM 6.0 EC001485
ETIM 5.0 EC001485
UNSPSC 12.1 32101514