PRODUCT DESCRIPTION
PEPPERL & FUCHS 70133071 - KFD2-SR2-EX1.W Isolated Switch Amplifier
This is a single-channel, isolated switch amplifier from the K-System family, engineered for intrinsic safety applications. It provides galvanic isolation and signal conditioning for NAMUR sensors or potential-free contacts located in hazardous areas, driving a potential-free relay output in the safe area. The module is designed for critical process control and emergency shutdown systems requiring high integrity and compliance with international safety standards.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Isolated Switch Amplifier / Safety Barrier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35VDC
- POWER CONSUMPTION: 1.5W (typical)
- OUTPUT SWITCHING CAPACITY: 250VAC/2A or 30VDC/2A (resistive load)
- INTERFACE/CONTROL:
- INPUT: 1-channel, for NAMUR proximity switches (EN 60947-5-6) or potential-free contacts
- OUTPUT: 1 x Changeover Relay (SPDT), potential-free
- FAULT INDICATION: Line fault detection (wire break, short circuit)
- SAFETY COMPLIANCE:
- SIL RATING: Up to SIL 2 (according to IEC 61508)
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, FM/CSA (specific classifications apply)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN Rail
- OPERATING TEMPERATURE: -20 to +60 °C
- COMPATIBILITY/APPLICATION: Intrinsic safety circuits for field devices in hazardous locations, process automation, chemical processing, oil and gas, pharmaceutical manufacturing, and emergency shutdown (ESD) systems.