Pepperl & Fuchs – KFD0‑CS‑EX2.50P – 2Channel Intrinsically Safe 4–20 mA Repeater

The Pepperl & Fuchs KFD0‑CS‑EX2.50P is a loop-powered, two-channel isolated barrier and repeater for intrinsically safe 4–20 mA loops. Designed for hazardous zones (0–2, Div 1/2), it supports transmitter power supply, galvanic isolation, and SIL 2 certification, ensuring safe and precise signal transmission in demanding industrial and safety-critical applications.

Key Features & Specifications:

• Model: KFD0‑CS‑EX2.50P

• Two independent 4–20 mA channels (input/output)

• Loop powered: 5–35 V DC supply

• Channel accuracy: 0.1% with ≤20 µA deviation post-calibration  

• Functional Safety: SIL 2 / SC 3 (IEC/EN 61508)  

• Galvanic isolation: Field/control circuits separated, 375 V peak  

• Transmitter power: ≥21 V @ 20 mA; short-circuit limited to 65 mA  

• Power dissipation: <250 mW in, <500 mW out per channel  

• Mounting: 20 mm wide, DIN-rail (35 mm), IP20 rated, −20…+60 °C  

• Certifications: ATEX Ex ia IIC/T4, IECEx, FM, UL/cUL, Zone 0/1/2, Div 1/2