ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 240784100006 - KFD2-SR2-EX1.W Intrinsic Safety Barrier
The PEPPERL & FUCHS KFD2-SR2-EX1.W is a K-System intrinsic safety barrier engineered for the galvanic isolation and signal conditioning of digital input signals originating from hazardous areas. It provides two independent channels, converting NAMUR proximity switch or dry contact inputs into isolated relay outputs for integration with safe area control systems. This module is essential for establishing reliable and compliant interfaces between field devices in Zone 0, 1, or 2 and standard industrial control architectures.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsic Safety Barrier, Digital Input, Relay Output
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC
- POWER CONSUMPTION: < 1.5W at 24V DC
- INPUT TYPE: NAMUR proximity switch (EN 60947-5-6) or dry contact
- OUTPUT TYPE: 2 x SPDT (Single Pole Double Throw) relay outputs
- SWITCHING CAPACITY: 250V AC / 2A / 500VA 40V DC / 2A / 80W (resistive load)
- INTERFACE/CONTROL:
- INPUT CHANNELS: 2 independent channels
- FAULT DETECTION: Line fault detection (LFD) for open and short circuit on input lines
- STATUS INDICATION: LEDs for power, input status, and fault
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 to +60 °C (-4 to +140 °F)
- MOUNTING: 35mm DIN rail
- ENCLOSURE MATERIAL: Polycarbonate
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Ex ia IIC (for input circuits), suitable for Zone 0, 1, 2
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 (IEC 61508)
- TARGET SYSTEMS: Process control systems (DCS, PLC, ESD)
- APPLICATIONS: Interfacing digital field devices (e.g., limit switches, flow sensors) located in hazardous areas with safe area control equipment.
