PRODUCT DESCRIPTION
PEPPERL & FUCHS 231202 - KFD2-SR2-EX1.W Intrinsic Safety Switch Amplifier
This K-System intrinsic safety barrier provides galvanic isolation and signal conditioning for connecting two hazardous area field devices to safe area control systems. It is engineered to interface NAMUR proximity sensors or dry contacts from Zone 0, 1, or 2 with relay outputs for PLCs or DCS, ensuring explosion protection in process automation applications. The module incorporates line fault detection for enhanced system reliability and diagnostic capabilities.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsic Safety Switch Amplifier (Repeater Barrier)
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35VDC
- INPUT: 2-channel, for NAMUR proximity sensors (EN 60947-5-6) or dry contacts
- OUTPUT: 2-channel, SPDT relay output (one per input channel)
- POWER CONSUMPTION: Approximately 1.5W at 24VDC
- INTERFACE/CONTROL:
- SIGNAL TYPE: Digital input from hazardous area, relay output to safe area
- DIAGNOSTICS: Line fault detection (LFD) for open and short circuits
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 to +60 °C
- MOUNTING: 35mm DIN rail
- ENCLOSURE: Compact, flame-retardant plastic
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Suitable for connecting devices in Ex ia IIC, Ex ib IIC, Ex ia IIB, Ex ib IIB zones
- SAFETY INTEGRITY LEVEL: Up to SIL 2 (IEC 61508/61511)
- APPLICATIONS: Process control, chemical plants, oil and gas, pharmaceuticals, water treatment, interfacing limit switches, flow switches, and level switches in explosive atmospheres.