PRODUCT DESCRIPTION
PEPPERL & FUCHS 254534 - KFD2-SR2-EX1.W Intrinsic Safety Switch Amplifier
This K-System intrinsic safety barrier is a two-channel switch amplifier designed for interfacing NAMUR proximity sensors or dry contacts located in hazardous areas with safe area control systems. It provides galvanic isolation, signal conditioning, and potential-free relay outputs for safety instrumented functions and general process control applications, featuring integrated line fault detection.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2 Series (KFD2-SR2-EX1.W)
- COMPONENT TYPE: Intrinsic Safety Switch Amplifier, Signal Conditioner, Safety Relay
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35VDC
- POWER CONSUMPTION: Approximately 1.5W per channel
- INPUT TYPE: 2x NAMUR proximity sensor or dry contact
- OUTPUT TYPE: 2x SPDT (Single Pole Double Throw) potential-free relay contacts
- SWITCHING CAPACITY: 250VAC/2A or 125VDC/2A (resistive load)
- INTERFACE/CONTROL:
- INPUT SIGNAL: NAMUR EN 60947-5-6, dry contact
- OUTPUT SIGNAL: Relay contact for safe area control
- DIAGNOSTICS: Line fault detection (open/short circuit) for input lines
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20°C to +60°C
- MOUNTING: 35mm DIN rail
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, FM, cULus for Zone 0, 1, 2 / Class I, Div 1, 2
- COMPATIBILITY/APPLICATION:
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 (IEC 61508)
- TARGET SYSTEMS: PLCs, DCS, safety controllers
- APPLICATIONS: Process automation, emergency shutdown systems (ESD), fire and gas systems, machine safety