ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 419128 - KFD2-SR2-EX1.W Intrinsic Safety Barrier Switch Amplifier
This K-System intrinsic safety barrier, identified by part number 419128, is a dual-channel switch amplifier designed for interfacing NAMUR proximity sensors or mechanical contacts located in hazardous areas with control systems in safe areas. It provides galvanic isolation and signal conditioning, ensuring reliable operation and compliance with intrinsic safety standards for critical process automation applications.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2-SR2-EX1.W
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC
- POWER CONSUMPTION: 1.5W (typical)
- INPUT: 2-channel for NAMUR sensors (EN 60947-5-6) or dry contacts
- OUTPUT: 2 normally open (NO) relay outputs
- SWITCHING CAPACITY: 250VAC/2A (cos phi > 0.7) or 30VDC/2A (resistive load)
- INTERFACE/CONTROL:
- SIGNAL TYPE: Digital input from hazardous area, relay output to safe area
- FAULT DETECTION: Selectable line fault detection (LFD) for open/short circuit
- INDICATORS: LEDs for operation, switching state, and fault conditions
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN rail
- OPERATING TEMPERATURE: -20 °C to +60 °C
- HAZARDOUS AREA CLASSIFICATION: [Ex ia Ga] IIC, [Ex ia Da] IIIC (for input circuit)
- COMPATIBILITY/APPLICATION:
- SENSOR COMPATIBILITY: NAMUR proximity switches, mechanical contacts
- SAFETY INTEGRITY: Certified up to SIL 2 (IEC 61508) and PL c (EN ISO 13849-1)
- TARGET APPLICATIONS: Process automation in chemical, oil & gas, pharmaceutical industries requiring intrinsic safety for field devices