ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 309726 - K-System 2-Channel Isolated Barrier with Safety Relay Output
PEPPERL & FUCHS 309726 is a K-System 2-channel isolated barrier, specifically a switch amplifier, engineered for intrinsic safety applications in hazardous industrial environments. It provides galvanic isolation and signal conditioning for inputs from NAMUR sensors or mechanical contacts located in hazardous areas, driving two independent relay outputs in the safe area. This module is critical for safety-instrumented systems, including emergency shutdown (ESD) and fire and gas (F&G) systems, requiring high reliability and compliance with international safety standards.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2-SR2-EX1.W.SM)
- COMPONENT TYPE: Isolated Barrier, 2-Channel Switch Amplifier with Safety Relay Output
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35 VDC
- POWER CONSUMPTION: 1.5 W (typical)
- INPUT: 2 independent intrinsically safe inputs for NAMUR sensors or mechanical contacts
- OUTPUT: 2 independent relay outputs, SPDT (changeover contacts), rated for 250 VAC / 2 A or 30 VDC / 2 A
- INTERFACE/CONTROL:
- DIAGNOSTICS: Line fault detection (LFD) for open and short circuits on input lines
- INDICATORS: Status LEDs for power, input, and output states
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35 mm DIN rail mountable
- OPERATING TEMPERATURE: -20 to +60 °C (-4 to +140 °F)
- HAZARDOUS AREA APPROVALS: ATEX, IECEx, FM, cULus for Zone 0, 1, 2, 20, 21, 22
- COMPATIBILITY/APPLICATION:
- SAFETY INTEGRITY LEVEL: Up to SIL 2 (IEC 61508)
- TARGET SYSTEMS: Process automation, chemical plants, oil and gas, pharmaceuticals
- FUNCTION: Signal conditioning, galvanic isolation, switching for safety-instrumented systems
