Pepperl Fuchs KFD2-SCD2-Ex2.LK SMART Current Driver (295089)

The P&F KFD2-SCD2-Ex2.LK is a dual-channel intrinsically safe SMART current driver designed for operating I/P converters, valve positioners, and field devices in hazardous areas.

This barrier supports bidirectional digital HART communication over analog signals and ensures safe transmission between field and control zones. With support for loads up to 650 Ω, this unit is optimized for high-accuracy current loop transmission, fault detection, and system diagnostics.

Technical Specifications

Model: KFD2-SCD2-Ex2.LK
Type: SMART Current Driver / Analog Output Barrier
Channels: 2
Mounting: 35 mm DIN Rail (EN 60715)
Housing Type: B2, screw terminals
Power Supply: 24 V DC via Power Rail or terminals 14+, 15-

Input Specifications

Input Signal: 4–20 mA (limited to ~30 mA)
Input Terminals: 7-, 8+, (9+); 10-, 11+, (12+)
Voltage Drop: ~6 V at 20 mA
Input Resistance: >100 kΩ (open circuit); >100 kΩ for wiring <50 Ω

Output Specifications

Output Signal: 4–20 mA
Output Terminals: 1+, 2-; 4+, 5- (with LFD)
3+, 2-; 6+, 5- (no LFD)
Load Resistance: 100–650 Ω (terminals 1,2; 4,5), 0–550 Ω (terminals 2,3; 5,6)
Ripple: 20 mV RMS

Power & Performance

Rated Voltage: 19–30 V DC
Rated Current: ≤ 45 mA @ 24 V
Power Dissipation: ≤ 1 W (20 mA / 500 Ω load)
Accuracy: < 0.1% of full scale
Ambient Temperature: -40…+70 °C

Galvanic Isolation

Input/Output: Basic insulation, 300 Veff
Input/Power Supply: Basic insulation, 300 Veff
Output/Power Supply: Reinforced insulation, 300 Veff
Input/Input: Functional insulation, 50 V AC

Indicators & Configuration

Display: LEDs for status and fault
Configuration: DIP switch
Test Sockets: Integrated for HART communicators
Collective Error Output: Open collector transistor

Certifications & Compliance

Functional Safety: SIL 2 (SC 3) – IEC/EN 61508
ATEX: BAS 00 ATEX 7240 X
IECEx: IECEx BAS 04.0014X
Marking: Ex ia / Ex ec IIC T4 Gc
Approvals: cULus (Control Drawing 116-0345)
EMC Compliance: EN 61326-1:2013, EN 61326-3-2:2018
Protection Rating: IP20

Key Features & Benefits

✅ Dual SMART Outputs: Drive I/P converters and valve positioners simultaneously.

✅ HART Communication: Fully supports bidirectional digital protocol.

✅ Fault Monitoring: Detects open/short loops with alarm signaling.

✅ High Precision: ±0.1% full scale ensures accurate analog transmission.

✅ SIL 2 Certified: Trusted for safety-critical systems in hazardous zones.

📦 Buy Pepperl+Fuchs KFD2-SCD2-Ex2.LK from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable KFD2-SCD2-Ex2.LK prices.

Perfect for operating field valves and positioners in hazardous areas with HART diagnostics and dual-channel analog outputs.

In stock now and available with 2–3 days delivery.

Contact us to place your order today.