ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 252743 - KFD2-CD-EX1.32 K-System Switch Amplifier Intrinsic Safety Barrier
This K-System intrinsic safety barrier, model KFD2-CD-EX1.32, provides galvanic isolation and signal conditioning for discrete inputs from hazardous areas. It interfaces NAMUR sensors or dry contacts located in Zone 0, 1, or 2 with safe area control systems, converting the input status into a single-channel isolated relay output. Integrated line fault detection ensures system integrity by monitoring for wire breaks and short circuits in the field circuit.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Switch Amplifier, Intrinsic Safety Barrier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35VDC
- POWER CONSUMPTION: 1.5W at 24VDC (typical)
- HAZARDOUS AREA INPUT: 1-channel for NAMUR sensor (EN 60947-5-6) or dry contact
- SAFE AREA OUTPUT: 1-channel, isolated relay output (SPDT)
- RELAY CONTACT RATING: 250VAC/2A or 30VDC/2A (resistive load)
- INTRINSIC SAFETY PARAMETERS (HAZARDOUS AREA): Uo = 10.6V, Io = 13mA, Po = 34mW (for Ex ia IIC)
- INTERFACE/CONTROL:
- INPUT SIGNAL TYPE: NAMUR (switching point 1.2 mA ON, 2.1 mA OFF) or dry contact
- FAULT INDICATION: Line fault detection for wire break and short circuit
- STATUS INDICATION: LEDs for switching state, fault, and power
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP40 (housing)
- OPERATING TEMPERATURE: -20 to +60 °C
- MOUNTING STYLE: 35mm DIN rail mount
- ENCLOSURE: Compact, flame-retardant plastic housing
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: ATEX, IECEx, UL, cUL certified for Ex ia IIC, Ex ib IIC, Ex nA IIC applications
- TARGET SYSTEMS: Process control systems (DCS, PLC, SCADA) requiring intrinsically safe interfaces for discrete signals
- APPLICATIONS: Chemical processing, oil and gas exploration/refining, pharmaceutical manufacturing, power generation, and other industries with potentially explosive atmospheres.
