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Pepperl+Fuchs KFD2-STC4-EX1 SMART Transmitter Isolated Barrier

Brand: Pepperl+Fuchs
Part No.: KFD2-STC4-EX1
SMART transmitter power supply, 1-channel isolated barrier (K-System range)
Power supply: 24 VDC via Power Rail or terminals (rated voltage: 20…35 VDC)
Supports 2-wire and 3-wire SMART transmitters in hazardous areas
Also compatible with 2-wire SMART current sources
Input signal: 0/4…20 mA
Output signal: 0/4…20 mA (overload > 25 mA)
Output load: 0…800 Ω
Transfers analog input signal to safe area as isolated current value
HART, BRAIN, and Foxboro SMART protocol support
Bi-directional digital signal transfer (HART communication) between hazardous and safe areas
Internal 250 Ω resistance (terminals 8 and 9) available when loop HART resistance is too low
Integrated test sockets in terminals for HART communicator connection
Transfer deviation: ≤ 10 µA (at 20°C, incl. calibration, linearity, hysteresis)
Rise time: 20 µs / Start-up time: 200 µs
Frequency range (field to control): 0…7.5 kHz (-3 dB)
Power consumption: 1.9 W / Power loss: 1.5 W
Electrical isolation: input/output and input/power supply per IEC/EN 60079-11 (375 V peak)
Safety rating: up to SIL2 per IEC 61508
Ambient temperature: -20…+60°C
Protection rating: IP20
Housing type B2, dimensions: 20 mm (W) x 124 mm (H) x 115 mm (D)
Weight: approx. 200 g
Connection type: screw terminals

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