Pepperl Fuchs KFD2-SCD2-Ex1.LK SMART Current Driver (123524)
The P&F KFD2-SCD2-Ex1.LK is a 1-channel SMART current driver designed for safe transmission of analog signals to field devices in hazardous zones. Compatible with HART-IP and valve positioners, this intrinsically safe isolated barrier enables bi-directional communication while delivering high-precision analog output and advanced line fault diagnostics.
Technical Specifications
Model: KFD2-SCD2-Ex1.LK
Function: SMART Current Driver
Input Type: 4–20 mA Analog Input
Output Type: 4–20 mA Analog with HART
Output Load: 100–650 Ω (with terminals 1+, 2–)
Power Supply: 24 V DC via terminals or Power Rail
Channel: 1
Input Specifications
- Terminals: 7-, 8+ (9+ for HART)
- Signal: 4–20 mA (max 30 mA)
- Voltage Drop: Approx. 6 V at 20 mA
- Input Resistance: > 100 kΩ (open circuit)
Output Specifications
- Terminals: 1+, 2– (or 3+, 2– without LFD)
- Voltage: ≥ 13 V at 20 mA
- Current: 4–20 mA
- Load: 100–650 Ω (1+, 2–) / 0–550 Ω (3+, 2–)
- Ripple: 20 mV rms
- Line Fault Detection: Load > 100 kΩ (break), < 50 Ω (short)
Performance & Transfer Characteristics
- Accuracy: < 0.1% of full scale
- Temperature Drift: < 2 µA/K (-20 to 70 °C)
- HART Bandwidth: 0–3 kHz (±3 dB)
- Rise Time: ≤ 10 ms (10–90%)
Power & Safety
- Supply Voltage: 19–30 V DC
- Power Dissipation: ≤ 600 mW
- Max Power Consumption: ≤ 700 mW
- SIL Level: SIL 2 (SC 3) per IEC/EN 61508
- Galvanic Isolation: Basic/reinforced insulation to EN 61010-1
Environmental & Mechanical
- Operating Temp: -40 … 70 °C
- Protection: IP20 (IEC 60529)
- Connection: Screw terminals
- Mounting: 35 mm DIN rail (EN 60715)
- Dimensions: 20 x 124 x 115 mm (W x H x D)
- Weight: Approx. 115 g
Hazardous Area Approvals
- ATEX: BAS 00 ATEX 7240 X
- IECEx: IECEx BAS 04.0014X
- Zone Marking: II (1)G [Ex ia Ga] IIC / II (1)D [Ex ia Da] IIIC / I (M1) [Ex ia Ma] I
- Voltage Uo: 25.2 V
- Current Io: 93 mA
- Power Po: 585.3 mW
- Max Safe Voltage: 250 V rms
Key Features & Benefits
✅ SMART I/P & Positioner Control: Supports HART-enabled analog output.
✅ Dual Field Output Modes: Use with or without short circuit detection.
✅ High Precision: <0.1% accuracy and <2 µA/K drift.
✅ Diagnostics: Built-in LEDs and fault bus transistor output.
✅ Hazardous Area Approved: Full ATEX and IECEx certification.
📦 Buy Pepperl+Fuchs KFD2-SCD2-Ex1.LK from Drive Outlet Megastore
At Drive Outlet Megastore we offer unbeatable KFD2-SCD2-Ex1.LK prices.
This compact, high-precision current driver is perfect for demanding process control applications where reliability, safety, and HART communication matter.
In stock now and available with 2–3 days delivery.
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