Pepperl Fuchs KFD2-SOT3-Ex2.IO Switch Amplifier (264212)

The P&F KFD2-SOT3-Ex2.IO is a 2-channel intrinsically safe switch amplifier designed to isolate NAMUR sensors or dry contacts in hazardous areas and control non-polarized passive transistor outputs in safe areas.

With galvanically isolated outputs, fast switching capability, line fault detection, and DIP-switch configurable logic reversal, this SIL 2 certified barrier offers precise signal replication and fault transparency for modern control systems.

Technical Specifications

Model: KFD2-SOT3-Ex2.IO
Type: Intrinsically Safe Switch Amplifier
Input Type: NAMUR sensor or dry contact
Output Type: Non-polarized passive transistor output
Channels: 2
Mounting: 35 mm DIN rail (EN 60715)

Input Specifications

• Connection Terminals: 1+, 2+, 3-; 4+, 5+, 6-
• Standard: EN 60947-5-6 (NAMUR)
• Open Circuit Voltage: Approx. 10 V DC
• Short-Circuit Current: Approx. 8 mA
• Switching Point: 1.2 … 2.1 mA
• Hysteresis: Approx. 0.2 mA
• Line Fault Detection: Break ≤ 0.1 mA, Short ≥ 6.5 mA
• Pulse/Pause Ratio: Min. 100 µs

Output Specifications

• Output Terminals: I: 7+, 8- | II: 10+, 11-
• Output Type: Passive transistor, non-polarized
• Rated Voltage: 30 V DC
• Rated Current: 100 mA (short-circuit protected)
• Response Time: ≤ 200 µs
• Signal Levels:
  • 1-Signal: V_external – 3 V max @ 100 mA
  • 0-Signal: Off-state current ≤ 10 µA
• Switching Frequency: ≤ 5 kHz

Power & Configuration

• Supply Voltage: 19 … 30 V DC
• Rated Current: 20 … 30 mA
• Power Dissipation: ≤ 1.1 W
• Power Rail Support: Yes
• Visual Indicators: LEDs (NAMUR NE 44)
• Configuration: DIP switch configurable

Galvanic Isolation

• Input/Output: Reinforced (300 Veff)
• Input/Power Supply: Reinforced (300 Veff)
• Output/Power Supply: Basic (300 Veff)
• Output/Output: Basic (60 Veff)

Environmental & Mechanical

• Operating Temperature: -20 … 60 °C
• Degree of Protection: IP20
• Connection: Screw terminals
• Dimensions: 20 x 119 x 115 mm (W x H x D)
• Weight: Approx. 150 g

Certifications & Safety

• SIL Rating: SIL 2 (SC 3) per IEC/EN 61508
• ATEX Marking: II 3(1)G Ex nA [ia Ga] IIC T4 Gc / II (1)D [Ex ia Da] IIIC / I (M1) [Ex ia Ma] I
• IECEx Marking: Ex nA [ia Ga] IIC T4 Gc / [Ex ia Da] IIIC / [Ex ia Ma] I
• Certificates: EXA 16 ATEX 0016 X, IECEx EXA 16.0009X
• Max Safe Voltage (Um): 253 V AC

Key Features & Benefits

✅ Isolated Passive Transistor Outputs: Ideal for PLC input interfacing.

✅ Non-Polarized Design: Simplifies wiring and installation.

✅ SIL 2 Certified: Reliable safety-rated digital signal transfer.

✅ Fast Switching: Up to 5 kHz for rapid response applications.

✅ Dual Channel Isolation: Independent signal processing per channel.

📦 Buy Pepperl+Fuchs KFD2-SOT3-Ex2.IO from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable KFD2-SOT3-Ex2.IO prices.

A high-speed, fault-transparent barrier with dual transistor outputs for safety-critical control integration.

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

Contact us to place your order today.