PRODUCT DESCRIPTION
PEPPERL & FUCHS 187548 - KFD2-SR2-EX1.W Isolated Barrier Switch Amplifier
This isolated barrier from the K-System series is engineered for intrinsic safety applications, providing galvanic isolation between hazardous and safe areas. It functions as a two-channel switch amplifier, interfacing NAMUR sensors or mechanical contacts located in hazardous locations with control systems in the safe area. The module ensures reliable signal transmission, line fault detection, and maintains safety integrity for critical process control and safety instrumented systems.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2 Series (Switch Amplifiers)
- COMPONENT TYPE: Isolated Barrier, 2-Channel Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC
- POWER CONSUMPTION: 1.5W at 24V DC
- INPUT: 2-channel for NAMUR sensors (EN 60947-5-6) or dry contacts
- OUTPUT: 2 x SPDT Relay (Changeover Contact)
- SWITCHING CAPACITY: 250V AC / 2A / 500VA 40V DC / 2A / 80W
- INTERFACE/CONTROL:
- INPUT SIGNAL: NAMUR proximity sensors or mechanical contacts
- OUTPUT SIGNAL: Potential-free relay contacts
- DIAGNOSTICS: Line fault detection (LFD) for open/short circuit on input lines
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP40 (housing)
- OPERATING TEMPERATURE: -20 to +60 °C (-4 to +140 °F)
- MOUNTING: 35mm DIN rail
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Inputs suitable for Zone 0, 1, 2 (gas) and Zone 20, 21, 22 (dust)
- SAFETY INTEGRITY LEVEL: SIL 2 (IEC/EN 61508)
- TYPICAL APPLICATIONS: Process automation, chemical, oil & gas, pharmaceutical industries for interfacing field devices in hazardous locations.