The Pepperl+Fuchs KFD0-CS-Ex1.51P is a single-channel intrinsically safe current driver and signal repeater, designed to safely transfer and isolate analogue signals between hazardous and non-hazardous areas.

Ideal for fire alarms, smoke detection, and process control systems, it reliably transmits 0–40 mA signals while providing galvanic isolation and intrinsic safety protection.

Loop-powered, it eliminates the need for an additional control-side power supply and includes reverse polarity protection to prevent wiring errors.

Certified to SIL 2 (SC 3) and approved for Zone 0, 1, and 2 hazardous areas, the KFD0-CS-Ex1.51P is suitable for safety-critical applications involving detectors, I/P converters, valves, indicators, and audible alarms.

• Single-channel intrinsically safe current driver / repeater

• Transfers analogue signals from hazardous to safe areas

• Supports current input and output from 0 to 40 mA

• Loop powered operation with no additional control-side supply required

• Galvanic isolation between field and control circuits

• Reverse polarity protection for enhanced reliability

• Suitable for fire alarm, smoke alarm, and process control applications

• SIL 2 (SC 3) certified to IEC / EN 61508

• DIN rail mountable compact housing