| Attribute | Value |
|---|---|
| Brand | PEPPERL+FUCHS |
| Model | KFD0-SCS-EX1.55 |
| Series | K-SYSTEM |
| Part No. | 41655 |
| PTB Number | EX-97.D.2048 [EEX IB] IIC |
| Output | 4-20 mA Transmitter Input or 4-20 mA Output |
| Voltage | U = 30V |
| Current | J = 50mA |
| UM | 253V |
| Ambient Temperature | Max. 60°C |
| Maximum Values | UO = 23.1V JO = 28mA PO = 647mW |
| Explosion Protection | EEX IB IIC |
| Capacitance (CO) | 63nF |
| Inductance (LO) | 0.5mH |
| Serial No. | 03142535160145 |
| Country of Origin | Made in Germany |
| Weight | 110 gm |
| Reference No. | 52909 |
What is the KFD0-SCS-EX1.55?
The PEPPERL+FUCHS KFD0-SCS-EX1.55 is an explosion-proof driver and signal repeater that is particularly used to drive signals within hazardous areas. It repeats analog signals (usually 4–20 mA) from safe areas to the field and vice versa, with full electrical isolation. This makes it a critical element in process control systems, particularly in oil & gas, petrochemical, and pharmaceutical applications.
Key Features
One-channel signal transmission
Exi Intrinsically Safe Output
Supports connection to dangerous areas (Zone 0/Div. 1).
Active current output
Suitable for powering input loops of active field devices.
Loop-powered or powered externally
Space-saving DIN-rail mounting
3-way isolation between power supply, input, and output
High precision and low signal distortion
Technical Specifications
Model Number: KFD0-SCS-EX1.55
P+F Part Number: 41655
Input Signal: 4–20 mA
Output Signal: 4–20 mA
Power Supply: 19.2 to 30 V DC
Power Consumption: Approx. 1.2 W
Signal Transfer Accuracy: ±0.1% of full scale
Ambient Temperature: -20 °C to +60 °C
Mounting: 35 mm DIN rail (EN 60715)
Applications
Oil & Gas Processing:
Guarantees safe signal transmission in explosive environments, perfect for offshore platforms or refineries.
Chemical Plants:
Applied in accurate process control where volatile chemicals need tightly controlled environments.
Water Treatment Plants:
Carries sensor information (e.g., pressure, flow) from remote tanks to the control room.
Pharmaceutical Manufacturing:
Preserves signal integrity in controlled, hazardous laboratory environments.
Food & Beverage Industry:
Applied for measuring process variables in washdown and explosive dust atmospheres.
Why PEPPERL+FUCHS?
PEPPERL+FUCHS has established a worldwide reputation for robust, reliable automation technology. The KFD0-SCS-EX1.55 is one of the company’s more general K-System products, which are well recognized for compatibility with DCS and PLC systems from every major manufacturer.
The sturdy construction, quick installability, and safety-compliant certification render it an obvious choice for engineering staff wanting to ensure greater reliability within harsh process conditions.
