The Pepperl+Fuchs KFD2-STC5-EX1.2O Smart Transmitter Power Supply is a compact signal conditioning module for powering 2-wire smart transmitters in hazardous areas and transferring process signals to control systems with high integrity. Built for demanding process automation, it stabilizes 4–20 mA loops, maintains HART communication, and integrates seamlessly into control cabinets and DCS/PLC architectures.

This K-System module provides regulated power to the field device and delivers two independent, isolated 4–20 mA outputs to the safe area, enabling parallel connection to redundant inputs or separate monitoring channels. Galvanic isolation between field and control sides improves noise immunity and plant uptime, while HART transparency enables remote configuration and diagnostics without interrupting measurement. The unit operates from a 24 V DC supply, supports Power Rail distribution, and uses robust screw terminals for quick DIN-rail installation.

Whether in chemical, oil and gas, water treatment, or pharmaceutical applications, the KFD2-STC5-EX1.2O streamlines engineering and speeds commissioning by combining reliable transmitter excitation with safe signal transfer, and it further protects your investment with a 1-year warranty included as part of the product offering.

• Brand: Pepperl+Fuchs
• Series: K-System
• Model: KFD2-STC5-EX1.2O
• Output type: 4–20 mA, 2 outputs, HART transparent
• Supply voltage: 20 to 30 V DC; Power Rail compatible
• Galvanic isolation: Field to control side
• Connection type: Screw terminals
• Mounting: 35 mm DIN rail