PEPPERL+FUCHS KFD2-SCD-EX1.LK POWER SWITCH AMPLIFIER, P/N: 122033
The Pepperl+Fuchs KFD2-SCD-Ex1.LK (Part Number: 122033) is a premium, high-reliability Isolated Barrier / SMART Current Driver designed for intrinsic safety applications. This 1-channel K-System module safely transfers 0/4 mA to 20 mA signals from your control system (PLC/DCS) to drive hazardous area field devices, including SMART I/P converters, electrical valves, and digital valve positioners.
Featuring bidirectional HART communication pass-through, this module allows digital communication signals to be superimposed seamlessly onto the analog loop for effortless remote device configuration and diagnostics.
| Specifications | |
| Product Make | PEPPERL+FUCHS |
| Rated Supply Voltage | 20 to 35 V DC |
| Power Dissipation | ~0.8 W at 20 mA into a 500 Ω load |
| Power Consumption | ≤ 1 W at 20 mA |
| Transfer Accuracy | 0.1 % of the full-scale value |
| Connection Terminals | Terminals 7–, 8+, and 9+ |
| Input Signal | 4 to 20 mA (Limited to approximately 25 mA internally) |
| Voltage Drop (\(U_{d}\)) | Approx. 4 V or internal resistance of 200 Ω at 20 mA |
| Input Resistance | > 100 kΩ when field wiring resistance triggers an open-circuit state |
| Connection Terminals | Terminals 1+, 2– |
| Condition | Good |
| Warranty | 3 Months |
| Country of Origin | Germany |
| Protection Degree | IP20 |
| Length | 115mm |
| Width | 20mm |
| Height | 119mm |
| Weight | 130g |









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