Pepperl+Fuchs
Pepperl+Fuchs KFU8-UFC-Ex1.D – Universal Frequency Converter
Pepperl+Fuchs KFU8-UFC-Ex1.D – Universal Frequency Converter
Manufacturer part number: KFU8-UFC-Ex1.D
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ENQUIRE NOWProduct Overview
The Pepperl+Fuchs KFU8-UFC-Ex1.D is a 1-channel isolated barrier frequency converter with trip values and a universal power supply. It accepts 20 … 90 V DC or 48 … 253 V AC, making it suitable for panels where a 24 V DC Power Rail is not available.
It evaluates pulse and frequency signals from NAMUR sensors or dry contacts in the hazardous area (1 mHz … 5 kHz), converts them into a 0/4 … 20 mA output, and provides two relay outputs and a transistor output for programmable limit values. A start-up override input, line fault detection and suitability up to SIL 2 complete the specification.
Key Features
- Manufacturer: Pepperl+Fuchs
- Model: KFU8-UFC-Ex1.D
- Product type: Universal Frequency Converter
- 1-channel isolated barrier
- Universal supply: 20 … 90 V DC / 48 … 253 V AC
- Input for NAMUR sensors or dry contacts
- Input frequency 1 mHz … 5 kHz
- 0/4 … 20 mA current output
- 2 relay outputs and 1 transistor output
- Start-up override; up to SIL 2 to IEC/EN 61508 / IEC/EN 61511
Technical Specifications
| Manufacturer | Pepperl+Fuchs |
|---|---|
| Part number | KFU8-UFC-Ex1.D |
| Product type | 1-channel frequency converter with trip values / isolated barrier |
| Signal type | Digital (pulse/frequency) input |
| Rated supply voltage | 20 … 90 V DC / 48 … 253 V AC, 50 … 60 Hz (terminals 23, 24) |
| Power consumption | ≤ 2.2 W / 3 VA |
| Input I | NAMUR (EN 60947-5-6) or mechanical contact, terminals 1+, 3- |
| Input frequency | 0.001 … 5000 Hz; pulse duration > 50 µs |
| Input II | Start-up override 1 … 1000 s |
| Outputs I, II | Relay; 250 V AC / 2 A / cos φ ≥ 0.7; 40 V DC / 2 A |
| Output III | Electronic (transistor) output, passive, 40 V DC |
| Output IV | 0 … 20 mA or 4 … 20 mA, load max. 650 Ω; NE43 fault signal |
| Accuracy | 0.1 % of measured value |
| Configuration | Front keypad and display, or PACTware |
| Functional safety | SIL 2 (IEC/EN 61508 / IEC/EN 61511) |
| Ambient temperature | -20 … 60 °C |
| Degree of protection | IP20 |
| Dimensions | 40 x 119 x 115 mm (W x H x D), housing type C2 |
| Mass | 300 g |
| Mounting | 35 mm DIN mounting rail (EN 60715) |
| ATEX | TÜV 99 ATEX 1471 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I |
| IECEx | IECEx TUN 04.0007 |
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
- Speed and overspeed monitoring in AC- or DC-powered panels
- Standstill and underspeed detection
- Pulse flowmeter rate conversion
- SIL 2 speed monitoring
Installation and Compatibility
DIN rail mounting (40 mm wide); connect the universal supply to terminals 23/24 (not supplied via Power Rail). Sensor on 1+/3-, start-up override on 13+/14-, relays on 10–12 and 16–18, transistor output on 19+/20-, analogue output on 8+/7-.
Frequently Asked Questions
What is the Pepperl+Fuchs KFU8-UFC-Ex1.D?
The Pepperl+Fuchs KFU8-UFC-Ex1.D is a 1-channel isolated barrier frequency converter with trip values and a universal power supply. It accepts 20 … 90 V DC or 48 … 253 V AC, making it suitable for panels where a 24 V DC Power Rail is not available.
What supply does the KFU8-UFC-Ex1.D need?
20 … 90 V DC / 48 … 253 V AC, 50 … 60 Hz (terminals 23, 24).
How do I get a price for the KFU8-UFC-Ex1.D?
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 KFU8-UFC-Ex1.D datasheet (PDF)
- KFU8-UFC-Ex1.D on the Pepperl+Fuchs website (certificates, manuals and drawings)
Related Products
- Pepperl+Fuchs KFD2-UFC-Ex1.D – Universal Frequency Converter
- Pepperl+Fuchs KFD2-CRG2-Ex1.D – Transmitter Power Supply with Trip Values
- 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 KFU8-UFC-Ex1.D. Please include your required quantity and any relevant application details when submitting your enquiry.
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