Pepperl+Fuchs
Pepperl+Fuchs KFD2-STC5-Ex1 – SMART Transmitter Power Supply
Pepperl+Fuchs KFD2-STC5-Ex1 – SMART Transmitter Power Supply
Manufacturer part number: KFD2-STC5-Ex1
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ENQUIRE NOWProduct Overview
The Pepperl+Fuchs KFD2-STC5-Ex1 is a 1-channel isolated barrier SMART transmitter power supply. It powers 2-wire and 3-wire SMART transmitters, or accepts a 2-wire SMART current source, in the hazardous area and repeats the 4 … 20 mA signal to the safe area as either a current sink or current source output.
HART communication is transferred bi-directionally, terminals with test points simplify maintenance, and the module is suitable for applications up to SIL 2 to IEC/EN 61508. It is supplied at 24 V DC via the Power Rail and carries ATEX and IECEx certification, including Ex ec installation in Zone 2.
Key Features
- Manufacturer: Pepperl+Fuchs
- Model: KFD2-STC5-Ex1
- Product type: SMART Transmitter Power Supply
- 1-channel isolated barrier
- Supplies 2-wire and 3-wire SMART transmitters
- Accepts 2-wire SMART current sources
- 4 … 20 mA output, current sink or source
- HART signals transferred bi-directionally
- Terminals with test points
- Up to SIL 2 to IEC/EN 61508
Technical Specifications
| Manufacturer | Pepperl+Fuchs |
|---|---|
| Part number | KFD2-STC5-Ex1 |
| Product type | 1-channel SMART transmitter power supply / isolated barrier |
| Signal type | Analogue input |
| Rated supply voltage | 18 … 30 V DC (Power Rail or terminals 14+, 15-) |
| Power consumption | ≤ 1.6 W at maximum load |
| Input signal | 4 … 20 mA |
| Available voltage | ≥ 16 V at 20 mA; ≥ 20 V at 4 mA |
| Output signal | 4 … 20 mA, sink or source (overload > 25 mA) |
| Load | 0 … 800 Ω |
| Deviation | ≤ 10 µA at 20 °C |
| Functional safety | SIL 2 (IEC/EN 61508) |
| Ambient temperature | -20 … 70 °C |
| Degree of protection | IP20 |
| Dimensions | 20 x 124 x 115 mm (W x H x D), housing type B2 |
| Mass | approx. 150 g |
| Mounting | 35 mm DIN mounting rail (EN 60715) |
| ATEX | CML 17 ATEX 2029X — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I; CML 17 ATEX 3028X — II 3G Ex ec IIC T4 Gc |
| IECEx | IECEx CML 17.0015X |
| Other approvals | UL (E106378) |
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
- Pressure, level and flow transmitters in Ex zones
- HART-enabled instrument loops
- Analogue input marshalling
- SIL 2 measurement loops
Installation and Compatibility
DIN rail mounting with 24 V DC from the Power Rail or terminals 14+/15-. Field connection on terminals 1+, 2-, 3; output on 7, 8, 9 (sink or source arrangement per manual).
Frequently Asked Questions
What is the Pepperl+Fuchs KFD2-STC5-Ex1?
The Pepperl+Fuchs KFD2-STC5-Ex1 is a 1-channel isolated barrier SMART transmitter power supply. It powers 2-wire and 3-wire SMART transmitters, or accepts a 2-wire SMART current source, in the hazardous area and repeats the 4 … 20 mA signal to the safe area as either a current sink or current source output.
What supply does the KFD2-STC5-Ex1 need?
18 … 30 V DC (Power Rail or terminals 14+, 15-).
How do I get a price for the KFD2-STC5-Ex1?
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-STC5-Ex1 datasheet (PDF)
- KFD2-STC5-Ex1 on the Pepperl+Fuchs website (certificates, manuals and drawings)
Related Products
- Pepperl+Fuchs KFD2-STC5-Ex2 – 2-Channel SMART Transmitter Power Supply
- Pepperl+Fuchs KFD2-STC4-Ex1 – SMART Transmitter Power Supply
- 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-STC5-Ex1. 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.