PRODUCT DESCRIPTION
PEPPERL & FUCHS 808304 - Isolated Barrier, Safety Relay Output
The PEPPERL & FUCHS 808304 (KFD2-SR2-EX1.W) is an isolated barrier from the K-System series, engineered for intrinsic safety applications in hazardous areas. It provides a galvanically isolated interface between safe area control systems and hazardous area field devices, featuring two safety relay outputs for switching applications. This module ensures reliable signal transmission, line fault detection, and protection against ignition hazards in critical process automation environments.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Isolated Barrier, Safety Relay Output
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC
- POWER CONSUMPTION: 1.5W
- OUTPUT TYPE: 2 x Normally Open (NO) Potential-Free Relay Contacts
- SWITCHING CAPACITY: 250VAC / 125VDC at 2A (Resistive Load)
- INTERFACE/CONTROL:
- INPUT SIGNAL: NAMUR Proximity Switches or Dry Contacts (Hazardous Area)
- OUTPUT SIGNAL: Potential-Free Relay Contacts (Safe Area)
- FAULT DETECTION: Line Fault Detection (LFD) for Open/Short Circuit in Field Wiring
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN Rail
- OPERATING TEMPERATURE: -20 to +60 °C
- COOLING: Natural Convection
- SAFETY CERTIFICATION:
- INTRINSIC SAFETY: ATEX, IECEx, FM, cULus (for Hazardous Area Circuits)
- SAFETY INTEGRITY LEVEL: Up to SIL 2 (IEC 61508)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Process Control Systems (PCS), Distributed Control Systems (DCS), Safety Instrumented Systems (SIS), Programmable Logic Controllers (PLC)
- TYPICAL APPLICATIONS: Control of Solenoid Valves, Alarms, and Indicators in Hazardous Locations, Emergency Shutdown Systems