The Pepperl+Fuchs KFD2-ST-EX2 switch amplifier from the K-System delivers dependable signal isolation and switching for intrinsically safe field devices in hazardous areas. Optimized for process automation and control panels, it converts NAMUR sensor or dry-contact inputs from Ex zones into clean logic-level signals on the safe side, supporting stable PLC/DCS operation on standard DIN-rail assemblies.

With two channels and galvanic isolation between field and control circuits, the KFD2-ST-EX2 minimizes noise, prevents ground loops, and ensures consistent switching performance. Operating from a 24 V DC control supply, its fast transistor outputs provide precise, low-loss interfacing to digital inputs, while screw terminals and a compact IP20 housing streamline installation and maintenance.

Engineered for OEMs, panel builders, and maintenance teams who need a robust hazardous-area interface, this K-System module combines proven reliability with straightforward integration, and it is supplied with a 1-year warranty to keep your projects on schedule and within compliance.

• Brand: Pepperl+Fuchs
• Series: K-System
• Model: KFD2-ST-EX2
• Channels: 2
• Input type: NAMUR sensor or dry contact (Ex i)
• Output type: Transistor switching output (open collector)
• Supply voltage: 20 to 30 V DC (typ. 24 V DC)
• Connection type: Screw terminals