Pepperl Fuchs KFD2-STC5-Ex1.H Transmitter Power Supply (239217)
P&F KFD2-STC5-Ex1.H is a 1-channel SMART transmitter power supply with enhanced field voltage capabilities, designed for 2-wire and 3-wire SMART transmitters and current sources in hazardous areas. It features selectable sink/source output modes, integrated test points, and bi-directional HART, BRAIN, and Foxboro communication support. With SIL 2 safety compliance and 17 V minimum field voltage at 20 mA, it’s optimized for high-demand signal transmission applications.
Technical Specifications
- Model: KFD2-STC5-Ex1.H
- Function: SMART Transmitter Power Supply
- Channels: 1
- Input Signal: 4 … 20 mA
- Output Signal: 4 … 20 mA (sink/source selectable)
- Power Supply: 18 … 30 V DC (via Power Rail or terminals)
- Signal Direction: Field to control side
- Mounting: 35 mm DIN rail (EN 60715)
- Connection Type: Screw terminals with HART test sockets
Electrical Features
- Isolation: 3-way isolation between input/output/power
- Operating Modes: Current source or sink selectable
- Signal Type: Analog 4–20 mA with HART, BRAIN, and Foxboro support
- Minimum Field Voltage: ≥ 17 V at 20 mA
- Ripple: Max. 50 µA rms
- Load Resistance: 0 … 800 Ω
- Transfer Accuracy: ≤ 10 µA at 20 °C
- Frequency Range: 0 … 7.5 kHz (bi-directional)
- Settling Time: 200 µs
- Rise/Fall Time: 100 µs
Environmental Conditions
- Temperature Range: -20 … 60 °C (up to 70 °C with conditions)
- Protection: IP20
- Weight: Approx. 200 g
- Housing Type: B2 (20 x 124 x 115 mm)
- Approvals: ATEX, IECEx, UL, FM
Hazardous Area Compliance
- Zone Classification: Zone 0, 1, 2 / Div. 1, 2
- ATEX Marking: II (1) G [Ex ia Ga] IIC / II (1) D [Ex ia Da] IIIC / I (M1) [Ex ia Ma] I
- IECEx Marking: [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex ec IIC T4 Gc
- SIL Rating: SIL 2 compliant (SC 3, IEC/EN 61508)
Key Features & Benefits
✅ Higher Field Voltage: Guarantees ≥ 17 V at 20 mA for demanding installations.
✅ Selectable Modes: Current sink or source output configuration.
✅ Protocol Support: Fully compatible with HART, BRAIN, and Foxboro.
✅ Fast Response: 200 µs settling and 100 µs rise/fall time.
✅ SIL 2 Certified: Trusted for use in safety-instrumented systems.
📦 Buy Pepperl+Fuchs KFD2-STC5-Ex1.H from Drive Outlet Megastore
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Delivering reliable signal transfer and enhanced field voltage for SMART transmitter loops in hazardous areas—optimized for performance and safety.
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