PRODUCT DESCRIPTION
PEPPERL & FUCHS 2407840006 - Intrinsically Safe Switch Repeater Barrier
This is a 2-channel intrinsically safe switch repeater barrier from the K-System family, engineered for reliable signal transmission from hazardous areas to safe area control systems. It provides galvanic isolation and powers NAMUR proximity sensors or mechanical switches located in Zone 0, 1, or 2, converting their status into isolated relay outputs for PLCs or DCS. Integrated line fault detection ensures system integrity by monitoring field wiring for open or short circuits.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsically Safe Switch Repeater Barrier
- CHANNELS: 2-channel
- INPUT TYPE: NAMUR proximity sensors (EN 60947-5-6) or dry contacts/switches from hazardous area
- OUTPUT TYPE: 2 x Isolated Relay Outputs (SPDT contacts) to safe area
- SUPPLY VOLTAGE: 20-35 VDC (typically 24 VDC nominal)
- POWER CONSUMPTION: Approximately 1.5 W at 24 VDC
- SWITCHING CAPACITY: 250 VAC / 2 A / 500 VA (resistive load) or 125 VDC / 2 A / 60 W (resistive load) per relay
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, UL, FM (specific certifications vary by variant, but core Ex-i functionality is certified)
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 (IEC 61508)
- LINE FAULT DETECTION: Integrated for open and short circuits in field wiring
- GALVANIC ISOLATION: Input, Output, and Power Supply are mutually isolated
- MOUNTING: 35 mm DIN rail mount
- ENCLOSURE RATING: IP20
- OPERATING TEMPERATURE: -20 to +60 degrees Celsius