ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 264982 - KFD2-SR2-EX1.W.LB Intrinsic Safety Barrier
This device is a K-System intrinsic safety barrier designed for the galvanic isolation and signal conditioning of digital inputs from hazardous areas. It functions as a single-channel switch amplifier, converting signals from NAMUR sensors or mechanical contacts located in Zone 0, 1, or 2 into safe, isolated relay outputs for control systems in the safe area. The unit integrates line fault detection and a wide power supply range, ensuring reliable operation and enhanced system diagnostics in process automation applications.
Technical Specifications:
- SERIES/FAMILY: K-System Intrinsic Safety Barriers (KFD2)
- COMPONENT TYPE: Switch Amplifier, Intrinsic Safety Barrier, Safety Relay
- ELECTRICAL SPECS:
- POWER SUPPLY: 20-35V DC (Wide Range)
- CURRENT CONSUMPTION: Approximately 40mA at 24V DC
- INPUT: 1-channel for NAMUR proximity sensors or mechanical contacts from hazardous area
- OUTPUT: 2 potential-free changeover contacts (SPDT), rated for max 250V AC/DC, 2A
- INTERFACE/CONTROL:
- SIGNAL INPUT: 1-channel for NAMUR sensor (EN 60947-5-6) or dry contact
- OUTPUT RELAYS: 2 potential-free changeover contacts (SPDT)
- DIAGNOSTICS: Line fault detection (LFD) for open and short circuit conditions
- FAULT INDICATION: Fault bus output for collective error signaling
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN rail mounting
- OPERATING TEMPERATURE: -20 to +60 °C
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Ex ia IIC (for connection to Zone 0, 1, 2)
- SAFETY INTEGRITY LEVEL: Up to SIL2 (IEC 61508)
- TARGET SYSTEMS: Distributed Control Systems (DCS), Programmable Logic Controllers (PLC), Emergency Shutdown Systems (ESD)
- INDUSTRIES: Chemical, Oil & Gas, Pharmaceutical, Water/Wastewater Treatment
