Pepperl Fuchs KFD2-STC5-Ex1 Transmitter Power Supply (70124109)

P&F KFD2-STC5-Ex1 is a 1-channel SMART transmitter power supply engineered for use in hazardous areas with 2-wire and 3-wire transmitters or SMART current sources. Designed for safe analog signal transmission, it provides selectable current sink or source output modes and supports bi-directional HART, BRAIN, and Foxboro communication. Integrated test terminals, internal resistor, and SIL 2 compliance make it a versatile Ex-rated signal interface.

Technical Specifications

• Model: KFD2-STC5-Ex1
• Function: SMART Transmitter Power Supply
• Channels: 1
• Input Signal: 4 … 20 mA
• Output Signal: 4 … 20 mA (sink/source selectable)
• Power Supply: 18 … 30 V DC (via Power Rail or terminals)
• Signal Direction: Field to control side
• Mounting: 35 mm DIN rail (EN 60715)
• Connection Type: Screw terminals with HART test sockets

Electrical Features

• Isolation: 3-way isolation between input/output/power
• Operating Modes: Current source or sink selectable
• Signal Type: Analog 4–20 mA with HART, BRAIN, and Foxboro support
• Ripple: Max. 50 µA rms
• Load Resistance: 0 … 800 Ω
• Transfer Accuracy: ≤ 10 µA at 20 °C
• Frequency Range: 0 … 7.5 kHz (bi-directional)
• Settling Time: 200 µs
• Rise/Fall Time: 100 µs

Environmental Conditions

• Temperature Range: -20 … 70 °C
• Protection: IP20
• Weight: Approx. 150 g
• Housing Type: B2 (20 x 124 x 115 mm)
• Approvals: ATEX, IECEx, UL, FM

Hazardous Area Compliance

• Zone Classification: Zone 0, 1, 2 / Div. 1, 2
• ATEX Marking: II (1) G [Ex ia Ga] IIC / II (1) D [Ex ia Da] IIIC / I (M1) [Ex ia Ma] I
• IECEx Marking: [Ex ia Ga] IIC, [Ex ia Da] IIIC, Ex ec IIC T4 Gc
• SIL Rating: SIL 2 compliant (IEC/EN 61508)

Key Features & Benefits

✅ Bi-Directional Protocols: Supports HART, BRAIN, and Foxboro communication.

✅ Flexible Output: Selectable current sink or source operation.

✅ Test Points: Integrated HART test sockets for diagnostics.

✅ High-Speed Performance: 200 µs settling time and 7.5 kHz bandwidth.

✅ SIL 2 Certified: Ideal for safety-related analog signal applications.

📦 Buy Pepperl+Fuchs KFD2-STC5-Ex1 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable KFD2-STC5-Ex1 prices.

Compact and reliable transmitter power supply for hazardous area signal conditioning—perfect for analog loops requiring Ex safety and SMART protocol compatibility.

In stock now and fast delivery available.

Contact us to place your order today.