Pepperl+Fuchs
Pepperl+Fuchs KFA6-SR2-Ex2.W – Switch Amplifier (230 V AC)
Pepperl+Fuchs KFA6-SR2-Ex2.W – Switch Amplifier (230 V AC)
Manufacturer part number: KFA6-SR2-Ex2.W
Price on Availability (POA)
Contact us for pricing, availability and lead times.
ENQUIRE NOWProduct Overview
The Pepperl+Fuchs KFA6-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier powered from a 230 V AC supply. It transfers digital signals from NAMUR sensors or dry contacts in hazardous areas to two relay contact outputs, with reinforced galvanic isolation between input, output and supply circuits.
With line fault detection, a reversible mode of operation and suitability for applications up to SIL 2 to IEC/EN 61508 / IEC/EN 61511, it suits mains-powered control panels that need to interface Ex-area switching devices without a separate 24 V DC supply.
Key Features
- Manufacturer: Pepperl+Fuchs
- Model: KFA6-SR2-Ex2.W
- Product type: Switch Amplifier (230 V AC)
- 2-channel isolated barrier
- 230 V AC supply (207 … 253 V AC, 45 … 65 Hz)
- Inputs for NAMUR sensors or dry contacts
- 2 relay contact outputs
- Line fault detection (LFD)
- Reversible mode of operation
- Up to SIL 2 to IEC/EN 61508 / IEC/EN 61511
Technical Specifications
| Manufacturer | Pepperl+Fuchs |
|---|---|
| Part number | KFA6-SR2-Ex2.W |
| Product type | 2-channel isolated barrier / switch amplifier |
| Signal type | Digital input |
| Rated supply voltage | 207 … 253 V AC, 45 … 65 Hz (terminals 14, 15) |
| Power consumption | max. 1.3 W |
| Inputs | NAMUR to EN 60947-5-6 or dry contact; approx. 8 V DC / 8 mA |
| Line fault detection | Breakage I ≤ 0.1 mA, short circuit I > 6 mA |
| Outputs | 2 × relay (terminals 7, 8, 9 and 10, 11, 12) |
| Contact loading | 253 V AC / 2 A / cos φ > 0.7; 126.5 V AC / 4 A; 40 V DC / 2 A resistive |
| Switching frequency | ≤ 10 Hz |
| Functional safety | SIL 2 (IEC/EN 61508 / IEC/EN 61511) |
| 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. 150 g |
| Mounting | 35 mm DIN mounting rail (EN 60715) |
| ATEX | PTB 00 ATEX 2081 — II (1)G [Ex ia Ga] IIC, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I |
| IECEx | IECEx PTB 11.0031 |
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
- 230 V AC powered control panels
- Limit and level switch signals from Ex zones
- Valve position feedback
- SIL 2 safety loops
Installation and Compatibility
DIN rail mounting with 230 V AC on terminals 14/15. Field devices connect to terminals 1–6, relay outputs to terminals 7–12. Follow the certificate and instruction manual for intrinsically safe loop design.
Frequently Asked Questions
What is the Pepperl+Fuchs KFA6-SR2-Ex2.W?
The Pepperl+Fuchs KFA6-SR2-Ex2.W is a 2-channel isolated barrier switch amplifier powered from a 230 V AC supply. It transfers digital signals from NAMUR sensors or dry contacts in hazardous areas to two relay contact outputs, with reinforced galvanic isolation between input, output and supply circuits.
What supply does the KFA6-SR2-Ex2.W need?
207 … 253 V AC, 45 … 65 Hz (terminals 14, 15).
How do I get a price for the KFA6-SR2-Ex2.W?
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 KFA6-SR2-Ex2.W datasheet (PDF)
- KFA6-SR2-Ex2.W on the Pepperl+Fuchs website (certificates, manuals and drawings)
Related Products
- Pepperl+Fuchs KFA5-SR2-Ex2.W – Switch Amplifier (115 V AC)
- Pepperl+Fuchs KFD2-SR2-Ex2.W – Isolated Barrier Switch Amplifier
- 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 KFA6-SR2-Ex2.W. Please include your required quantity and any relevant application details when submitting your enquiry.
Share
Request a Quotation
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.