ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 307479 - K-System Intrinsic Safety Barrier
This K-System intrinsic safety barrier, specifically the KFD2-CD-EX1.32, functions as a repeater power supply and signal conditioner for interfacing 2-wire transmitters, NAMUR sensors, or mechanical contacts located in hazardous areas with safe area control systems. It provides galvanic isolation and ensures compliance with intrinsic safety standards for reliable process automation in explosive environments.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2 Series
- COMPONENT TYPE: Intrinsic Safety Barrier, Repeater Power Supply with Relay Output
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC
- POWER CONSUMPTION: 1.5W typical
- HAZARDOUS AREA INPUT: For 2-wire transmitters, NAMUR sensors (EN 60947-5-6), or mechanical contacts
- SAFE AREA OUTPUT: 1x Potential-free changeover relay contact
- RELAY CONTACT RATING: 250V AC / 2A or 125V DC / 0.2A (resistive load)
- INTRINSIC SAFETY PARAMETERS (HAZARDOUS AREA): Uo = 9.6V, Io = 10mA, Po = 24mW (for Ex ia IIC)
- INTERFACE/CONTROL:
- SIGNAL TYPE: Digital input from hazardous area, switched relay output to safe area
- SWITCHING FREQUENCY: Up to 5 kHz (for NAMUR input)
- INDICATORS: LEDs for operation, fault, and switching status
- ADVANCED FEATURES: Line fault detection (LFD) for open and short circuits in field wiring
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 to +60 °C (-4 to +140 °F)
- MOUNTING STYLE: 35mm DIN rail mountable
- ISOLATION: Galvanic isolation between input, output, and power supply
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, FM, cULus for Zone 0, 1, 2 (Gas) and Zone 20, 21, 22 (Dust)
- TARGET APPLICATIONS: Process control in chemical plants, oil and gas facilities, pharmaceutical manufacturing, and water/wastewater treatment where field devices in hazardous areas require safe integration with PLCs or DCS systems.
