PRODUCT DESCRIPTION
PEPPERL & FUCHS 911629 - Intrinsic Safety Barrier, Switch Amplifier
The KFD2-SR2-EX1.W is a two-channel intrinsic safety barrier from the K-System series, designed for signal conditioning and isolation of NAMUR sensors or mechanical contacts located in hazardous areas. It provides reliable switching outputs via potential-free relays, ensuring safe operation and compliance with international explosion protection standards for critical process automation applications.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2 Series
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Amplifier
- ELECTRICAL SPECS: 20-35V DC Supply Voltage, 2-channel NAMUR or Dry Contact Input, 2-channel SPDT Relay Output
- OUTPUT CAPACITY: Max. 250 VAC/DC, 2 A, 500 VA (resistive load)
- INTERFACE/CONTROL: Input conforms to EN 60947-5-6 (NAMUR), Line fault detection (LFD) for open/short circuit
- SAFETY/CERTIFICATIONS: Up to SIL 2 (IEC 61508), Explosion Protection [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I, [Ex ib Gb] IIC, [Ex ib Db] IIIC, [Ex ib Mb] I, ATEX, IECEx, UL, cUL, EAC
- ENVIRONMENTAL/MOUNTING: -20 °C to +60 °C Operating Temperature, IP20 Protection, 35 mm DIN Rail Mounting
- COMPATIBILITY/APPLICATION: Compatible with NAMUR proximity sensors and mechanical switches in Zone 0, 1, 2, 20, 21, 22 hazardous areas suitable for process control, emergency shutdown, and monitoring systems.