ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 303881 - KFD2-SR2-EX1.W Isolated Barrier Switch Amplifier
The PEPPERL & FUCHS 303881 (KFD2-SR2-EX1.W) is a single-channel isolated barrier from the K-System series, engineered for the safe operation of sensors and actuators in hazardous areas. It functions as a switch amplifier, providing galvanic isolation between the intrinsically safe field circuit and the non-intrinsically safe control circuit, ensuring compliance with explosion protection standards. This module is suitable for applications requiring reliable signal transmission and fault detection in process automation and safety instrumented systems.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2 series)
- COMPONENT TYPE: Isolated Barrier, Switch Amplifier (1-channel)
- ELECTRICAL SPECS:
- NOMINAL VOLTAGE: 24 VDC (Operating range 19.2 VDC to 30 VDC)
- POWER CONSUMPTION: Max. 1.5 W
- INPUT: Intrinsically safe input for NAMUR proximity switches (EN 60947-5-6) or potential-free contacts
- OUTPUT: 1 x Relay output (SPDT/changeover contact), rated for 250 VAC / 2 A or 30 VDC / 2 A
- INTERFACE/CONTROL:
- SIGNAL TYPE: NAMUR (EN 60947-5-6) or dry contact input
- FAULT DETECTION: Line fault detection (LFD) for open and short circuit in field wiring
- SWITCHING FREQUENCY: Up to 5 kHz
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 °C to +60 °C (-4 °F to +140 °F)
- MOUNTING: 35 mm DIN rail
- ENCLOSURE: Standard K-System housing, 20 mm width
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA APPROVALS: ATEX, IECEx, UL, FM, EAC, KCC, NEPSI (for Zone 0, 1, 2 gas Zone 20, 21, 22 dust)
- SAFETY INTEGRITY LEVEL: Up to SIL 2 (according to IEC 61508)
- TARGET APPLICATIONS: Intrinsic safety applications in process automation, chemical, petrochemical, pharmaceutical, and food industries.