Pepperl+Fuchs KFD2-STC4-Ex1-Y122583 Transmitter Power Supply
Pepperl+Fuchs KFD2-STC4-Ex1-Y122583 (Part No. 122583) is a 1-channel SMART transmitter power supply and galvanic isolator designed for intrinsically safe applications. It provides 24 V DC power to 2-wire and 3-wire SMART transmitters in hazardous areas while transmitting 0/4–20 mA analog signals with galvanic isolation to the safe area. The module supports HART communication, offers SIL 2 functional safety, and ensures reliable signal isolation and protection in industrial process automation sys
BRAND
Pepperl+Fuchs
TYPE
SMART Transmitter Power Supply
PART NO.
122583
MODEL
KFD2-STC4-Ex1-Y122583
Full Technical Specifications ▶
| Parameter | Value / Description |
|---|---|
| BRAND | Pepperl+Fuchs |
| TYPE | SMART Transmitter Power Supply |
| PART NO. | 122583 |
| MODEL | KFD2-STC4-Ex1-Y122583 |
| Voltage Rating | Power Supply: 20...35 V DC (95–55 mA) | Safety Voltage (\(U_{m}\)): 250 V |
| Application | Powering and isolating SMART 2-wire / 3-wire transmitters in hazardous ATEX areas |
| IEC / Explosion Cert. | II (1) G [Ex ia] IIC (BAS99ATEX7060) | II 3 G Ex nA II T4 (TUV99ATEX1499X) |
| Ser. no | 4000000936916 |
| Hazardous Area Maximum Safety Parameters | Terminals 1, 3: \(U_o = 25.4\text{ V}\), \(I_o = 86.8\text{ mA}\), \(P_o = 551\text{ mW}\), \(C_o = 12\text{ nF}\) Terminals 2, 3, 5: \(U_o = 3.5\text{ V}\), \(I_o = 74\text{ mA}\), \(P_o = 64\text{ mW}\), \(U_i = 30\text{ V}\), \(I_i = 115\text{ mA}\) Te |
| Functional Circuit Blocks | Features safe-area output connections split across terminals 7+ and 8-, alongside an underlying Power Rail connection option via terminals 14+ and 15- |
| HART Signal Communication | analog 4...20 mA loop |
| Thermal Operating Limit | ambient surrounding temperature range from -20°C to +60°C |
| Chassis Design | Housed in a standardized 20 mm wide K-System green modular terminal block engineered to clip onto conventional 35 mm DIN rails |
| Safety Certification | SIL 2 Compliant according to IEC/EN 61508 |
| Rated Supply Voltage | 20 ... 35 V DC via Power Rail or Screw Terminals |
| Power Consumption | ≤ 1.8 W (at 20 mA output load) |
| Made In | Singapore |
| REF NO | 450 |
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