PRODUCT DESCRIPTION
PEPPERL & FUCHS 126914 - KFD2-SR2-EX1.W Intrinsic Safety Barrier
This K-System intrinsic safety barrier provides galvanic isolation and signal conditioning for two-channel operation, interfacing NAMUR proximity switches or mechanical contacts located in hazardous areas with control systems in safe areas. It is engineered for applications requiring high integrity and functional safety, ensuring reliable signal transmission while preventing energy transfer capable of igniting explosive atmospheres.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2-SR2-EX1.W)
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Repeater
- ELECTRICAL SPECS: 20-35V DC Supply Voltage, 2-channel Input, 2 Relay Outputs (Changeover Contacts)
- OUTPUT SWITCHING CAPACITY: Max. 253V AC/DC, Max. 2A, Max. 500VA AC / 60W DC
- INTERFACE/CONTROL: Input from NAMUR proximity switches (EN 60947-5-6) or dry contacts, Potential-free relay outputs
- DIAGNOSTICS: Configurable Line Fault Detection (LFD) for open and short circuits
- INDICATORS: LEDs for operation, switching state, and fault conditions
- ENVIRONMENTAL/MOUNTING: IP20 Protection, 35 mm DIN rail mounting per EN 60715, -20 to +60 °C Operating Temperature
- HAZARDOUS AREA CLASSIFICATION: Installation in Zone 2, connection to devices in Zone 0, 1, or 2
- COMPATIBILITY/APPLICATION: Process control systems, DCS, PLC systems requiring intrinsically safe circuits for sensors in hazardous locations
- CERTIFICATIONS: ATEX, IECEx, cULus, SIL 2 (IEC 61508/61511)