PRODUCT DESCRIPTION
PEPPERL & FUCHS 800189 - Intrinsically Safe Isolated Barrier
This K-System KFD2 series intrinsically safe isolated barrier, identified as KFD2-SR2-EX1.W, provides a robust interface for operating discrete input devices located in hazardous areas. It ensures galvanic isolation and signal conditioning for NAMUR proximity sensors or mechanical contacts, transmitting a safe relay output to the control system in the non-hazardous area. Engineered for critical safety applications, it meets stringent explosion protection requirements for process automation.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2 Series (KFD2-SR2-EX1.W)
- COMPONENT TYPE: Intrinsically Safe Isolated Barrier, Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC (Nominal 24V DC)
- INPUT: 2-wire NAMUR proximity sensors or mechanical contacts from hazardous area
- OUTPUT: 1 x Potential-free relay changeover contact
- SWITCHING CAPACITY: 250V AC / 2A 125V DC / 0.5A 30V DC / 2A
- INTERFACE/CONTROL:
- INPUT SIGNAL TYPE: NAMUR (EN 60947-5-6) or dry contact
- OUTPUT SIGNAL TYPE: Relay contact for safe area control systems
- SAFETY CERTIFICATION: ATEX, IECEx, UL, cUL, EAC (for intrinsic safety)
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 (IEC 61508/IEC 61511)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 °C to +60 °C
- MOUNTING: 35mm DIN rail mounting
- TERMINALS: Screw terminals
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Zone 0, 1, 2 (gas) Zone 20, 21, 22 (dust)
- FIELD DEVICES: NAMUR sensors, mechanical switches, pushbuttons
- TARGET SYSTEMS: Process control, safety instrumented systems (SIS), industrial automation in hazardous environments