PRODUCT DESCRIPTION
PEPPERL & FUCHS 087768 - KFD2-SR2-EX1.W Isolated Barrier
The PEPPERL & FUCHS KFD2-SR2-EX1.W is a two-channel isolated barrier from the K-System series, engineered for intrinsic safety applications in hazardous environments. It functions as a switch amplifier, providing galvanic isolation and reliable signal conditioning for discrete inputs from field devices in Zone 0/1/2 to control systems in the safe area. This module ensures compliance with explosion protection standards and maintains operational integrity for critical process signals.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2 Series
- COMPONENT TYPE: Isolated Barrier / Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC
- INPUT: 2-channel digital input for NAMUR sensors or mechanical contacts
- OUTPUT: 2 normally open (NO) potential-free relay contacts (SPST)
- SWITCHING CAPACITY: 250VAC / 2A or 30VDC / 2A (resistive load)
- INTERFACE/CONTROL:
- INPUT SIGNAL: NAMUR proximity sensors (EN 60947-5-6) or dry contacts
- OUTPUT SIGNAL: Potential-free relay contacts
- INDICATORS: LEDs for switching state and fault indication
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN rail
- OPERATING TEMPERATURE: -20 to +60 °C
- EXPLOSION PROTECTION: Ex ia IIC T4 Ga, Ex ib IIC T4 Gb (for hazardous area connections)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Process control systems, Safety Instrumented Systems (SIS)
- APPLICATIONS: Chemical processing, oil and gas, pharmaceutical manufacturing, power generation, and other industries requiring intrinsic safety for discrete signal transmission.
- SAFETY CERTIFICATION: Up to SIL 2 (IEC 61508/61511)