PRODUCT DESCRIPTION
PEPPERL & FUCHS 559667 - Intrinsic Safety Barrier Switch Amplifier
This intrinsic safety barrier, part of the KFD2 series, provides galvanic isolation and signal conditioning for hazardous area applications. It converts NAMUR or dry contact inputs from Zone 0/1/2 into safe area relay outputs, ensuring reliable signal transmission while maintaining explosion protection. Engineered for critical process control and safety instrumented systems requiring SIL 2 compliance.
Technical Specifications:
- SERIES/FAMILY: KFD2 Series (KFD2-SR2-EX1.W)
- COMPONENT TYPE: Intrinsic Safety Barrier Switch Amplifier
- ELECTRICAL SPECS:
- NOMINAL SUPPLY VOLTAGE: 24 VDC
- POWER CONSUMPTION: <= 1.5 W
- INPUT TYPE: NAMUR sensor (EN 60947-5-6) or Dry Contact
- OUTPUT TYPE: 1 x Relay (SPDT, changeover contact)
- INTERFACE/CONTROL:
- SIGNAL INPUT: Single channel, suitable for hazardous area sensors
- LINE FAULT DETECTION (LFD): Integrated for open and short circuit detection
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 according to IEC 61508
- ENVIRONMENTAL/MOUNTING:
- MOUNTING: 35 mm DIN rail
- PROTECTION RATING: IP20 (terminals), IP40 (housing)
- OPERATING TEMPERATURE: -20 °C to +60 °C (-4 °F to +140 °F)
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Input suitable for Zone 0, 1, 2
- TARGET SYSTEMS: Distributed Control Systems (DCS), Programmable Logic Controllers (PLC), Safety Instrumented Systems (SIS)
- TYPICAL APPLICATIONS: Process automation in chemical, oil & gas, pharmaceutical industries, monitoring of limit switches, proximity sensors, and push buttons in explosive atmospheres.