Pepperl+Fuchs
Pepperl+Fuchs KFD2-VR4-Ex1.26 – Voltage Repeater
Pepperl+Fuchs KFD2-VR4-Ex1.26 – Voltage Repeater
Manufacturer part number: KFD2-VR4-Ex1.26
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ENQUIRE NOWProduct Overview
The Pepperl+Fuchs KFD2-VR4-Ex1.26 is a 1-channel isolated barrier voltage repeater designed for vibration sensor signals. It supplies the field sensor (voltage or current supply) and transfers its 0 … -20 V signal from the hazardous area to the safe area with high bandwidth and low error.
Typical applications include eddy-current proximity probes and accelerometers used in machine condition monitoring. The module is powered at 24 V DC via the Power Rail, is ATEX and IECEx certified for Ex ia inputs, and is suitable for applications up to SIL 2 to IEC/EN 61508.
Key Features
- Manufacturer: Pepperl+Fuchs
- Model: KFD2-VR4-Ex1.26
- Product type: Voltage Repeater
- 1-channel isolated barrier
- Voltage input 0 … -20 V
- Inputs for vibration sensors
- Voltage or current field supply
- Voltage output 0 … -20 V
- Cut-off frequency 10 kHz (-0.1 dB)
- Up to SIL 2 to IEC/EN 61508
Technical Specifications
| Manufacturer | Pepperl+Fuchs |
|---|---|
| Part number | KFD2-VR4-Ex1.26 |
| Product type | 1-channel voltage repeater / isolated barrier |
| Signal type | Analogue input |
| Rated supply voltage | 19 … 30 V DC (Power Rail or terminals 11+, 12-) |
| Power consumption | ≤ 1.6 W |
| Transmission range | -20 … 0 V |
| Input resistance | 10 kΩ |
| Output | -20 … 0 V; load ≥ 9 kΩ (3-wire sensor), ≥ 2 kΩ (2-wire sensor) |
| Cut-off frequency | 10 kHz (-0.1 dB), 20 kHz (-1 dB) |
| DC transfer error | < 10 mV (10 kΩ load) |
| Functional safety | SIL 2 (IEC/EN 61508) |
| Ambient temperature | -20 … 60 °C |
| Degree of protection | IP20 |
| Dimensions | 20 x 119 x 115 mm (W x H x D), housing type B2 |
| Mass | approx. 125 g |
| Mounting | 35 mm DIN mounting rail (EN 60715) |
| ATEX | BAS 02 ATEX 7206 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC; DMT 01 ATEX E 133 — I (M1) [Ex ia] I; TÜV 99 ATEX 1499 X — II 3G Ex nA II T4 |
| IECEx | IECEx BAS 05.0078, IECEx BAS 10.0085X |
Specifications are taken from Pepperl+Fuchs manufacturer data. Always confirm critical values — particularly hazardous-area and functional-safety data — against the current datasheet, certificates and instruction manual before installation.
Applications
- Machine vibration monitoring (proximity probes, accelerometers)
- Turbine, compressor and pump condition monitoring
- Interfacing Ex-area vibration sensors to monitoring systems
- SIL 2 protection loops
Installation and Compatibility
DIN rail mounting with 24 V DC from the Power Rail or terminals 11+/12-. Sensor connects to terminals 1–6 according to sensor type (common terminal 4); output on 7-/8+. Check the monitor input impedance against the output data in the manual.
Frequently Asked Questions
What is the Pepperl+Fuchs KFD2-VR4-Ex1.26?
The Pepperl+Fuchs KFD2-VR4-Ex1.26 is a 1-channel isolated barrier voltage repeater designed for vibration sensor signals. It supplies the field sensor (voltage or current supply) and transfers its 0 … -20 V signal from the hazardous area to the safe area with high bandwidth and low error.
What supply does the KFD2-VR4-Ex1.26 need?
19 … 30 V DC (Power Rail or terminals 11+, 12-).
How do I get a price for the KFD2-VR4-Ex1.26?
This product is sold on a price on availability basis. Use the enquiry form on this page with your quantity and application details and the Valves UK team will reply with pricing and lead time.
Technical Documentation
- Pepperl+Fuchs KFD2-VR4-Ex1.26 datasheet (PDF)
- KFD2-VR4-Ex1.26 on the Pepperl+Fuchs website (certificates, manuals and drawings)
Related Products
- Pepperl+Fuchs KFD0-SD2-Ex2.1045 – Solenoid Driver
- Pepperl+Fuchs KFD2-EB2 – Power Feed Module
- View the full Pepperl+Fuchs range at Valves UK
Price and Availability
Price on Availability (POA)
Contact Valves UK for pricing, product availability and technical enquiries regarding the Pepperl+Fuchs KFD2-VR4-Ex1.26. Please include your required quantity and any relevant application details when submitting your enquiry.
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This product is supplied on a price on availability (POA) basis. Complete the form below and the Valves UK team will reply with pricing, availability and technical support.