PRODUCT DESCRIPTION
PEPPERL & FUCHS 70107456 - KFD2-SR2-EX1.W Intrinsic Safety Barrier
This K-System intrinsic safety barrier provides galvanic isolation and signal conditioning for two digital inputs from hazardous areas. Engineered as a switch repeater power supply, it interfaces NAMUR sensors or dry contacts located in Zone 0/1/2 with control systems in safe areas, ensuring compliance with intrinsic safety standards for process automation applications.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Repeater Power Supply
- ELECTRICAL SPECS:
- NOMINAL SUPPLY VOLTAGE: 24 VDC
- OPERATING VOLTAGE RANGE: 20 VDC to 35 VDC
- POWER CONSUMPTION: < 1.5 W per channel
- INPUT CHANNELS: 2
- OUTPUT CHANNELS: 2
- INTERFACE/CONTROL:
- HAZARDOUS AREA INPUT: NAMUR proximity switch or potential-free contact
- SAFE AREA OUTPUT: Relay output (changeover contact)
- DIAGNOSTICS: Line fault detection (LFD) for open and short circuits
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35 mm DIN rail
- OPERATING TEMPERATURE: -20 °C to +60 °C
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, UL, FM (typical for series)
- COMPATIBILITY/APPLICATION:
- Interfacing digital signals from Zone 0, 1, 2 (Division 1, 2) hazardous locations
- Integration with PLC and DCS systems in process control environments