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The PEPPERL & FUCHS 70101647 is a K-System isolated barrier switch amplifier engineered for intrinsic safety applications in hazardous areas. It provides reliable signal conditioning and galvanic isolation for NAMUR sensors or mechanical contacts, driving two independent relay outputs in the safe area. This module is critical for process automation systems requiring compliance with international hazardous area standards and functional safety requirements.
Technical Specifications:
SERIES/FAMILY: K-System (KFD2)
COMPONENT TYPE: Isolated Barrier Switch Amplifier
ELECTRICAL SPECS: 20-35V DC Supply Voltage (24V DC nominal), 1.5W typical Power Consumption, 250V AC / 2A / 500VA Output Switching Capacity (resistive load)
INPUTS: Two channels for NAMUR proximity sensors (EN 60947-5-6) or potential-free contacts
OUTPUTS: Two potential-free SPDT (Single Pole Double Throw) relay contacts
FUNCTIONAL SAFETY: Certified for applications up to Safety Integrity Level (SIL) 2 according to IEC 61508
HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, cULus for Zone 2, Class I, Div 2
FEATURES: Line fault detection (LFD) for open/short circuit on input lines, configurable operating modes
ENVIRONMENTAL/MOUNTING: 35mm DIN rail mounting, IP20 protection (terminals), IP40 protection (housing), -20 °C to +60 °C operating temperature
COMPATIBILITY/APPLICATION: Process control systems, chemical plants, oil & gas, pharmaceuticals, power generation, and other industries requiring intrinsic safety for field devices.
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