DESCRIZIONE PRODOTTO
PEPPERL & FUCHS 99441-1 - Intrinsic Safety Barrier, Switch Amplifier
This K-System intrinsic safety barrier is a dual-channel switch amplifier designed to provide galvanic isolation and signal conditioning for NAMUR proximity sensors or mechanical contacts located in hazardous areas. It ensures safe operation by limiting energy to field devices, converting input signals into potential-free relay outputs for control systems in the safe area, and features integrated line fault detection.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2-SR2-EX1.W.SM)
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35VDC
- INPUT TYPE: 2-channel, for NAMUR proximity sensors (EN 60947-5-6) or mechanical contacts
- OUTPUT TYPE: 2-channel, potential-free SPDT (Single Pole Double Throw) relay outputs
- SWITCHING CAPACITY: 250VAC / 2A (cos phi > 0.7) 30VDC / 2A (resistive load)
- POWER CONSUMPTION: 1.5W at 24VDC
- INTERFACE/CONTROL:
- SIGNAL PROCESSING: Converts intrinsically safe input signals to standard relay outputs
- RESPONSE TIME: 10 ms
- FREQUENCY RANGE: 0 to 5 kHz
- DIAGNOSTICS: Integrated line fault detection for wire break and short circuit
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN Rail
- OPERATING TEMPERATURE: -20 to +60 °C
- TERMINATION: Screw terminals
- HAZARDOUS AREA CERTIFICATIONS: ATEX, IECEx, UL, cULus, FM, EAC, NEPSI, KOSHA (for Zone 0, 1, 2 / Class I, Div 1, 2 applications)
- COMPATIBILITY/APPLICATION:
- APPLICATIONS: Process automation in hazardous locations, chemical plants, oil & gas, pharmaceuticals, water/wastewater treatment
- SAFETY INTEGRITY LEVEL: Up to SIL 2 (IEC/EN 61508)
- COMPATIBLE SENSORS: NAMUR sensors, limit switches, push buttons, emergency stop buttons
