ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 128870 - Intrinsic Safety Barrier - Switch Amplifier
The PEPPERL & FUCHS 128870 is a K-System intrinsic safety barrier, specifically a two-channel switch amplifier. It provides galvanic isolation and converts signals from NAMUR proximity sensors or dry contacts located in hazardous areas into safe, potential-free relay outputs for control systems in the safe area. Engineered for robust performance in process automation and safety instrumented systems, it ensures reliable signal transmission while maintaining explosion protection.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2-SR2-EX1.W)
- COMPONENT TYPE: Intrinsic Safety Barrier - Switch Amplifier
- ELECTRICAL SPECS:
- INPUT: 2-channel, suitable for NAMUR sensors (EN 60947-5-6) or dry contacts.
- OUTPUT: 2 x SPDT (Single Pole Double Throw) relay outputs, potential-free changeover contacts.
- SUPPLY VOLTAGE: 20-35V DC.
- POWER CONSUMPTION: Approximately 1.5W per channel at 24V DC.
- INTERFACE/CONTROL:
- SIGNAL CONVERSION: Converts hazardous area input signals to safe area relay outputs.
- FAULT DETECTION: Integrated line fault detection (LFD) for open and short circuits on the field side.
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20.
- MOUNTING: 35mm DIN rail mount.
- OPERATING TEMPERATURE: -20 °C to +60 °C.
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Certified for intrinsic safety applications up to Zone 0/20.
- SAFETY INTEGRITY LEVEL: Up to SIL 2 according to IEC 61508.
- TARGET SYSTEMS: Process control, safety instrumented systems (SIS), emergency shutdown (ESD) systems, and general industrial automation requiring hazardous area interfacing.
