ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 312638 - K-System Intrinsic Safety Barrier / Switch Amplifier
The PEPPERL & FUCHS KFD2-SR2-EX1.W.SM (P+F part number 312638) is a K-System intrinsic safety barrier and switch amplifier designed for reliable signal conditioning and galvanic isolation in hazardous area applications. It facilitates the safe operation of field devices such as NAMUR proximity switches or dry contacts located in Zone 0, 1, or 2, providing two galvanically isolated relay outputs for control systems in the safe area. This module is engineered for safety instrumented systems, offering robust line fault detection and compliance with functional safety standards.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsic Safety Barrier / Switch Amplifier
- MODEL: KFD2-SR2-EX1.W.SM
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35 VDC
- POWER CONSUMPTION: Approximately 1.5 W
- INPUT: 1-channel for NAMUR proximity switch or dry contact
- OUTPUT: 2 potential-free relay contacts (Normally Open)
- INTERFACE/CONTROL:
- INPUT SIGNAL TYPE: NAMUR sensor (EN 60947-5-6) or dry contact
- OUTPUT SIGNAL TYPE: Relay (2 x NO contacts)
- FUNCTIONAL SAFETY RATING: Up to SIL 2 (IEC 61508/61511), PL c (EN ISO 13849-1)
- DIAGNOSTICS: Line fault detection (open/short circuit) for input
- ISOLATION: Galvanic isolation between input, output, and power supply
- ENVIRONMENTAL/MOUNTING:
- MOUNTING: 35 mm DIN rail
- ENCLOSURE RATING: IP20
- OPERATING TEMPERATURE: -20 °C to +60 °C (-4 °F to +140 °F)
- HAZARDOUS AREA CLASSIFICATION: For installation in safe area, connected to Zone 0, 1, 2 (gas) or Zone 20, 21, 22 (dust)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Safety Instrumented Systems (SIS), Emergency Shutdown (ESD) systems, Process Control
- FIELD DEVICES: NAMUR sensors, mechanical switches, pushbuttons in hazardous locations
- INDUSTRIES: Oil & Gas, Chemical, Pharmaceutical, Power Generation, Water/Wastewater
