ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 322702 - KFD2 Series Dual-Channel Safety Relay / Switch Amplifier
This is a dual-channel intrinsic safety barrier from the KFD2 series, engineered for signal conditioning and switching applications in hazardous areas. It provides galvanic isolation between the hazardous and safe areas, enabling the connection of NAMUR proximity sensors or mechanical contacts to control systems. The module features integrated line fault detection and robust relay outputs, making it suitable for safety instrumented systems (SIS) requiring high reliability and compliance with international safety standards.
Technical Specifications:
- SERIES/FAMILY: KFD2 (Switch Amplifiers / Safety Barriers)
- COMPONENT TYPE: Dual-Channel Safety Relay / Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35 VDC
- POWER CONSUMPTION: Approximately 1.5 W per channel
- INPUT TYPE: 2x Intrinsically Safe Inputs for NAMUR Sensors or Potential-Free Contacts
- OUTPUT TYPE: 2x Relay Outputs, each with 2 Normally Open (NO) Contacts
- SWITCHING CAPACITY: 250 VAC / 2 A (resistive load)
- INTERFACE/CONTROL:
- SIGNAL CONDITIONING: Converts NAMUR sensor signals into discrete relay outputs
- FAULT DETECTION: Integrated Line Fault Detection (LFD) for open or short circuits
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35 mm DIN Rail Mount
- OPERATING TEMPERATURE: -20 °C to +60 °C (-4 °F to +140 °F)
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, UL, FM (for Zone 0, 1, 2 applications)
- COMPATIBILITY/APPLICATION:
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 (TÜV certified)
- TARGET SYSTEMS: Process control, emergency shutdown (ESD) systems, fire and gas systems
- SENSOR COMPATIBILITY: NAMUR proximity switches, limit switches, push buttons in hazardous locations
