Pepperl Fuchs SMART Transmitter Power Supply KFD2-STC5-Ex1 Terminals with test points

Pepperl Fuchs SMART Transmitter Power Supply KFD2-STC5-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 4 mA ... 20 mA current sink/current source

Terminals with test points

Up to SIL 2 acc. to IEC/EN 61508

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 W at maximum load

Power consumption ≤ 1.6 W at maximum load

Input

Connection side field side

Connection terminals 1+, 2-, 3

Input signal 4 ... 20 mA

Open circuit voltage/short-circuit current terminals 1+, 3: 23 V / 25 mA

Input resistance max. 265 Ω terminals 2-, 3 , max. 330 Ω terminals 1+, 3

Available voltage ≥ 16 V at 20 mA ; ≥ 20 V at 4 mA , terminals 1+, 3

Output

Connection side control side

Connection terminals 7+, 8-, 9- (sink)

terminals 7-, 8+, 9+ (source)

see additional information

Load 0 ... 800 Ω

Output signal 4 ... 20 mA (overload > 25 mA)

Ripple max. 50 µA rms

External supply (loop) 2 ... 30 V DC

If the external voltage is > 19 V, a load ≥ ((V - 19) / 0.02) Ω is required. V represents the value of the external voltage.

The internal 250 Ω resistor at terminal 9 can be used as a load.

Transfer characteristics

Deviation at 20 °C (68 °F), 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 100 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 21:2012

EN 61326-3-2:2008

Degree of protection IEC 60529:2001

Protection against electrical shock UL 61010-1:2012

Ambient conditions

Ambient temperature -20 ... 70 °C (-4 ... 158 °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) (W x H x D) , housing type B2

Height 124 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 CML 17 ATEX 2029X

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 26.2 V

Voltage 27.25 V

Current 93 mA

Power 634 mW

Equipment terminals 2-, 3

Voltage 30 V

Current 115 mA

Power max 1 W

Voltage 2 V

Current 8.5 mA

Power 4.3 mW

Equipment terminals 1+, 2 / 3-

Voltage 26.2 V

Voltage 27.25 V

Current 115 mA

Power 784 mW

Certificate CML 17 ATEX 3028X

Marking Ex-Hexagon II 3G Ex ec IIC T4 Gc

Galvanic isolation

Input/Output safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V

Input/power supply safe electrical isolation acc. to IEC/EN 60079-11:2007, voltage peak value 375 V

Directive conformity

Directive 2014/34/EU EN IEC 60079-0:2018 , EN 60079-7:2015+A1:2018 , EN 60079-11:2012

International approvals

UL approval E106378

Control drawing 116-0439 (cULus)

IECEx approval

IECEx certificate IECEx CML 17.0015X

IECEx marking [Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I , Ex ec IIC T4 Gc

Achievers Automation Limited

We are a global supplier of quality automation and control components, dedicated to meeting the industrial control needs of businesses worldwide.

• Over12 years of industry experience.
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