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.

Contact us to place your order today.