REPEATER BARRIER KFD0-CS-EX1.54 70185883

Product Description

The KFD0-CS-EX1.54 Repeater Barrier is a loop-powered intrinsic safety interface module designed by Pepperl+Fuchs for safe transmission of SMART / HART analog signals from hazardous (Ex) areas to safe area control systems.

It is mainly used with fire alarm systems, smoke detectors, and SMART transmitters, ensuring reliable signal transfer while maintaining intrinsic safety in explosion-risk environments.

Key Features

• 1-channel isolated repeater barrier
• Loop-powered operation (no external power supply required)
• Supports SMART / HART communication (bidirectional)
• Transfers 1–20 mA analog signals safely
• Digital signal superimposed (for SMART devices)
• High-speed signal transmission (≤ 50 µs response time)
• Intrinsic safety for hazardous area field devices
• SIL 3 capable (IEC 61508 safety applications)
• DIN rail mounting (compact control panel design)
• Galvanic isolation between the field and the control side

Technical Specifications

• Product Type: Repeater Barrier / Signal Isolator
• Model: KFD0-CS-EX1.54
• Order Number: 70185883
• Manufacturer: Pepperl+Fuchs
• Channels: 1 channel
• Signal Range: 1 … 20 mA (SMART compatible)
• Power Supply: Loop powered (via signal loop, ~24 V DC)
• Output Type: Isolated analog + digital signal transfer
• SIL Rating: Up to SIL 3 (IEC/EN 61508)
• Response Time: ≤ 50 µs (digital signal transfer)
• Current Limit: approx. 35 mA max (system dependent)
• Isolation: Galvanic isolation (~375 V peak)
• Mounting Type: DIN rail (35 mm)
• Operating Temperature: -20°C to +60°C
• Protection Class: IP20 (panel mounted)
• Dimensions: approx. 20 mm width (compact module)