PRODUCT DESCRIPTION
PEPPERL & FUCHS 118504 - KFD2-SR2-EX1.W.SM Safety Relay
This K-System series intrinsically safe isolating barrier functions as a switch amplifier, designed to interface digital signals from hazardous area field devices, such as NAMUR proximity sensors or mechanical contacts, to safe area control systems. It provides galvanic isolation between input, output, and power supply, incorporating line fault detection for enhanced system integrity and reliable signal transmission in process automation.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Switch Amplifier / Isolating Barrier / Safety Relay
- MODEL: KFD2-SR2-EX1.W.SM
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35VDC (Nominal 24VDC)
- POWER CONSUMPTION: Approximately 1.5W
- INPUT: 2-channel, for NAMUR sensors or dry contacts from Zone 0/1/2
- OUTPUT: 2-channel, relay output (2 normally open contacts per channel)
- SWITCHING CAPACITY: 250VAC/2A or 30VDC/2A (Resistive Load)
- INTERFACE/CONTROL:
- SIGNAL TYPE: Digital input (NAMUR/contact), Relay output
- FEATURES: Line fault detection (LFD) for open and short circuits, selectable via DIP switches
- ISOLATION: Galvanic isolation between input, output, and power supply
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35mm DIN rail mounting
- OPERATING TEMPERATURE: -20°C to +60°C (-4°F to +140°F)
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, UL (for intrinsic safety applications up to Zone 0/Div. 1)
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Safety Instrumented Systems (SIS), Distributed Control Systems (DCS), Programmable Logic Controllers (PLC)
- APPLICATIONS: Process control in chemical, oil & gas, pharmaceutical, and power generation industries, interfacing intrinsically safe field devices with safe area control logic