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Pepperl Fuchs KFD2-ST3-Ex2 Intrinsic Safety Barrier
The Pepperl Fuchs KFD2-ST3-Ex2 Intrinsic Safety Barrier offers a Digital Input signal type, on 35 mm DIN mounting rail, and screw terminals connection. Manufactured by Pepperl Fuchs under the P&F Intrinsic Safety Barrier category.

| Brand | Pepperl Fuchs |
| Product Type | Intrinsic Safety Barrier |
| Model Number | KFD2-ST3-Ex2 |
Pepperl Fuchs KFD2-ST3-Ex2 Intrinsic Safety Barrier – Technical Specifications
| Specification | Value |
|---|---|
| Signal type | Digital Input |
| Safety Integrity Level (SIL) | SIL 2 |
| Systematic capability (SC) | SC 3 |
| Supply Connection | Power Rail or terminals 14+, 15- |
| Rated voltage | 19 ... 30 V DC |
| Rated current | 20 ... 15 mA + Iout |
| Power dissipation | ≤ 900 mW including maximum power dissipation in the output |
| Power consumption | - |
| Connection side (Input) | field side |
| Ripple | ≤ 10 % |
| Connection (Input) | terminals 1+, 2+, 3-; 4+, 5+, 6- |
| Open circuit voltage/short-circuit current (Input) | approx. 10 V DC / approx. 8 mA |
| Switching point/switching hysteresis (Input) | 1.2 ... 2.1 mA / approx. 0.2 mA |
| Connection side (Output) | control side |
| Connection (Output) | output I: terminal 7+ ; output II: terminal 9+ |
| Response time | ≤ 200 µs |
| Signal level | 1-signal: (supply voltage) - 3 V max. for 100 mA 0-signal: blocked output (off-state current ≤ 10 µA) |
| Output I | signal ; Transistor |
| Output II | signal ; Transistor |
| Minimum switch current | - |
| Switching frequency | ≤ 5 kHz |
| Display elements | LEDs |
| Control elements | DIP switch |
| Dimensions | 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) |
| Connection | screw terminals |
| Mounting | on 35 mm DIN mounting rail |
| Ambient temperature | -20 ... 60 °C (-4 ... 140 °F) |
| Degree of protection | IP20 |
IndMALL Offers P&F Active Transistor Output Switching Amplifier KFD2-ST3-Ex2 at the lowest pricing. Technical Specs Summary of KFD2-ST3-Ex2, includes Digital Input signal type, Power Rail or terminals 14+, 15- supply connection, Digital Input rated voltage, 20 ... 15 mA + Iout rated curent, field side input connection, ≤ 200 µs, response time, control side, output connection, signal ; Transistor output, ≤ 5 kHz switching frequency, with dimensions of 20 x 119 x 115 mm (0.8 x 4.7 x 4.5 inch) screw terminals connection, on 35 mm DIN mounting rail mounting, -20 ... 60 °C (-4 ... 140 °F) ambient temperature IP20 degree of protection. Now's the Time to Secure a Quote for your requirement of P&F Active Transistor Output Switching Amplifier. We're committed to offering more favorable pricing and more responsive support than other Traders.





