PEPPERL+FUCHS KFD2-STC4-Ex1 SMART TRANSMITTER POWER SUPPLY, P/N: 122580
The Pepperl+Fuchs KFD2-STC4-Ex1 (P/N 122580) is a high-performance, single-channel isolated intrinsic safety barrier designed to power and monitor field instrumentation in explosive hazard zones. Operating as a SMART transmitter power supply, it acts as a secure firewall that limits electrical energy entering hazardous locations (Zone 0, 1, or 2) while accurately transferring analog data back to safe-area control systems.
| Specifications | |
| Product Make | PEPPERL+FUCHS |
| Rated Voltage | 20 V DC to 35 V DC. |
| Power Consumption | Maximum 1.8 W to 1.9 W |
| Power Dissipation | Approximately 1.4 W |
| Connection Type | Via DIN Power Rail or terminal blocks 14(+) and 15(-) |
| Signal Range | 0/4 mA to 20 mA |
| Connection Terminals | 1(+), 2(-), 3 or 5(-), 6(+) |
| Available Voltage | ≥ 16 V at 20 mA across terminals 1+ and 3 |
| Input Resistance | ≤ 64 Ω (terminals 2, 3) or ≤ 500 Ω |
| Voltage Drop | ≤ 2.4 V at 20 mA across terminals 5 and 6 |
| Condition | Good |
| Warranty | 3 Months |
| Country of Origin | Germany |
| Protection Degree | IP20 |
| Length | 115mm |
| Width | 20mm |
| Height | 124mm |
| Weight | 200g |









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