Pepperl+Fuchs KFD2-STC5-Ex1 SMART Transmitter Power Supply, 1-channel isolated barrier, 24 V DC supply (Power Rail)

General specifications

Signal type Analog input

Functional safety related parameters

Safety Integrity Level (SIL) SIL 2

Systematic capability (SC) SC 3

Supply

Connection Power Rail or terminals 14+, 15-

Rated voltage Ur 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 0/4 ... 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 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: 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) , housing type B2

Mounting on 35 mm DIN mounting rail acc. to EN 60715:2001

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