Pepperl Fuchs KFD0-CS-Ex1.51P SMART Current Driver (294980)

The P&F KFD0-CS-Ex1.51P is a 1-channel loop-powered current driver and repeater for safe transmission of 0–40 mA analog signals from hazardous to safe areas.

Designed for use with I/P converters, fire alarms, and field devices such as positioners or indicators, the module includes reverse polarity protection, 1% accuracy, and intrinsic safety certification for Ex zones. No external power supply is required, making it an ideal barrier for process automation in fire detection or control circuits.

Technical Specifications

Model: KFD0-CS-Ex1.51P
Type: Current Driver/Repeater (Analog Input/Output)
Channels: 1
Power Supply: Loop-powered, 4–35 V DC
Mounting: 35 mm DIN rail (EN 60715)
Housing Width: 20 mm
Protection: IP20 (EN 60529)

Input Specifications

Input Signal: 0–40 mA
Input Terminals: 12-, 11+ (control circuit)
Voltage: 4–35 V DC
Power Dissipation: 700 mW @ < 22 V, 1.2 W @ > 22 V
Galvanic Isolation: 375 V (IEC/EN 60079-11)

Output Specifications

Output Terminals: 1+, 2- (field circuit)
Voltage:
– Uin 4–24 V: ≥ Uin – (0.37 × current) – 1.0
– Uin > 24 V: ≥ 21 V – (0.36 × current)
Short-Circuit Current: ≤ 65 mA
Transfer Current: ≤ 40 mA

Performance & Accuracy

Accuracy: 1%
Calibration Deviation: ±200 µA (incl. hysteresis, linearity, load, temperature)
Temp Drift:
– ≤ ±2 µA/K @ Uin ≤ 20 V
– ≤ ±5 µA/K @ Uin > 20 V
Rise Time: ≤ 5 ms (4–20 mA step, Uin < 24 V)

Environmental & Mechanical

Ambient Temperature: -20 to +70 °C
Dimensions: 20 × 107 × 115 mm (W × H × D)
Mounting: DIN rail
Weight: Approx. 100 g
Connection: Screw terminals

Certifications & Safety

Explosion Protection:
– ATEX: BAS 98 ATEX 7343 X
– Marking: II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I
IECEx: IECEx BAS 05.0004X / IECEx CML 19.0040X
UL & FM Approvals: E106378 (UL/cUL), FM Control Drawing 116-0437
Maximum Safe Voltage (Um): 250 V eff
SIL Rating: SIL 2 (SC 3) per IEC/EN 61508

Key Features & Benefits

✅ Loop-Powered: No separate supply required on control side.

✅ Versatile Use: Supports both I/P converters and passive sensor signals.

✅ Reverse Polarity Protection: Prevents accidental damage from incorrect wiring.

✅ Certified Safety: Intrinsic safety for Ex Zones, SIL 2 functional approval.

✅ Compact Housing: 20 mm width fits standard DIN rail installations.

📦 Buy Pepperl+Fuchs KFD0-CS-Ex1.51P from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable KFD0-CS-Ex1.51P prices.

This rugged, loop-powered current repeater is ideal for isolating and transmitting analog signals in critical process automation systems with high intrinsic safety requirements.

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

Contact us to place your order today.