DESCRIZIONE PRODOTTO
PEPPERL & FUCHS 184257 - Intrinsic Safety Barrier
The PEPPERL & FUCHS 184257, identified as the KFD2-SR2-EX1.W.SM model, is a single-channel intrinsic safety barrier from the K-System series. It is engineered for the safe operation of NAMUR sensors and mechanical switches situated in hazardous areas, providing galvanic isolation and converting field signals into a safe relay output for control systems. This device ensures compliance with intrinsic safety standards for critical process automation applications.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2-SR2-EX1.W.SM)
- COMPONENT TYPE: Intrinsic Safety Barrier / Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35V DC (Nominal 24V DC)
- POWER CONSUMPTION: Approximately 1.5W
- INPUT SIGNAL: 1-channel for NAMUR sensors (EN 60947-5-6)
- OUTPUT SIGNAL: 1-channel SPDT (Single Pole Double Throw) Relay
- RELAY CONTACT RATING: 250VAC/2A or 125VDC/0.2A
- INTERFACE/CONTROL:
- SIGNAL INPUT: NAMUR sensor input, compliant with EN 60947-5-6
- SIGNAL OUTPUT: Potential-free relay contact for safe area control systems
- DIAGNOSTICS: Line fault detection (LFD) for open and short circuits in the field circuit
- ENVIRONMENTAL/MOUNTING:
- MOUNTING: 35mm DIN rail mounting
- PROTECTION RATING: IP20 (terminals), IP40 (housing)
- OPERATING TEMPERATURE: -20 °C to +60 °C
- HAZARDOUS AREA CLASSIFICATION: Suitable for applications up to Zone 0/20
- COMPATIBILITY/APPLICATION:
- FUNCTIONAL SAFETY: Up to SIL 2 (IEC 61508) / PL c (EN ISO 13849-1)
- APPLICATIONS: Process automation, chemical, petrochemical, pharmaceutical industries for monitoring switches and proximity sensors in hazardous locations.
- COMPATIBILITY: NAMUR proximity sensors, mechanical switches, and other dry contacts in intrinsically safe circuits.
