Pepperl Fuchs KFD2-VR4-Ex1.26 Voltage Repeater (70107327)
P&F KFD2-VR4-Ex1.26 is a 1-channel isolated barrier designed to transfer vibration sensor signals from hazardous areas into the safe zone. It powers 2-wire or 3-wire vibration sensors (such as Bently Nevada or accelerometers) and delivers a proportional voltage output signal (-20 V to 0 V) for further processing. Operating from a 24 V DC Power Rail supply, this repeater is ideal for high-fidelity vibration monitoring with minimal signal distortion, designed to meet SIL 2 safety standards.
Technical Specifications
- Model: KFD2-VR4-Ex1.26
- Function: Voltage repeater and field sensor supply
- Signal Type: Analog input
- Input Voltage Range: 0 V … -20 V
- Output Voltage Range: -20 V … 0 V
- Sensor Supply Current: 3.6 mA, 5.3 mA, or 8.9 mA (2-wire); 18 V at 20 mA (3-wire)
- Cutoff Frequency: 10 kHz (-0.1 dB), 20 kHz (-1 dB)
- SIL Rating: SIL 2 (IEC/EN 61508)
Electrical Features
- Power Supply: 19 … 30 V DC (via Power Rail or terminals 11+, 12-)
- Power Dissipation: ≤ 1.2 W
- Input Resistance: 10 kΩ
- Output Load: ≥ 9 kΩ (3-wire), ≥ 2 kΩ (2-wire)
- Output Resistance: 24 Ω typical (max. 27 Ω)
- DC Transfer Error: < 10 mV
- Additional AC Error: ±5 mV at 20 °C
- Ripple: < 3 mVrms (20 kHz BW)
- Time Delay: 7.1 ±0.3 μs
Environmental Conditions
- Ambient Temperature: -20 … 60 °C (-4 … 140 °F)
- Protection Class: IP20
- Mounting: 35 mm DIN rail (EN 60715)
- Connection: Screw terminals
- Dimensions: 20 x 119 x 115 mm (W x H x D)
- Weight: Approx. 125 g
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
- IECEx Certification: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
- Maximum Safe Voltage (Um): 253 V
- Galvanic Isolation: Safe isolation per IEC 60079-11 (375 V peak)
Key Features & Benefits
✅ Ideal for Vibration Monitoring: Optimized for accelerometers and Bently Nevada sensors.
✅ Flexible Sensor Supply: Powers both 2-wire and 3-wire sensor types.
✅ Low Signal Distortion: High fidelity output with low ripple and delay.
✅ SIL 2 Certified: Designed for safety-critical applications in hazardous zones.
✅ DIN Rail Mount: Space-saving 20 mm wide housing for compact control panels.
📦 Buy Pepperl+Fuchs KFD2-VR4-Ex1.26 from Drive Outlet Megastore
At Drive Outlet Megastore we offer unbeatable KFD2-VR4-Ex1.26 prices.
This voltage repeater is engineered to deliver precise and reliable sensor signal transmission from hazardous environments.
Fast UK delivery available with 2-year warranty and full compliance support.
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