PRODUCT DESCRIPTION
PEPPERL & FUCHS 70133264 - KFD2-SR2-EX1.W Isolated Barrier, Switch Amplifier
This K-System isolated barrier is a two-channel switch amplifier designed for intrinsic safety applications, interfacing NAMUR sensors or mechanical contacts located in hazardous areas with safe area control systems. It provides galvanic isolation and line fault detection, ensuring reliable signal transmission and compliance with international intrinsic safety standards for process automation.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Isolated Barrier, Switch Amplifier
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20 - 35 VDC
- INPUT: 2-channel, for NAMUR sensors (EN 60947-5-6) or dry contacts
- OUTPUT: 2-channel, potential-free relay contact (SPDT changeover)
- SWITCHING CAPACITY: 250 VAC / 2 A / 500 VA 125 VDC / 2 A / 60 W
- INTERFACE/CONTROL:
- INPUT TYPE: NAMUR (EN 60947-5-6) or mechanical contact
- OUTPUT TYPE: Relay (SPDT)
- LINE FAULT DETECTION: Configurable for open and short circuit in field wiring
- SWITCHING HYSTERESIS: Defined for NAMUR inputs
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- MOUNTING: 35 mm DIN rail
- OPERATING TEMPERATURE: -20 to +60 °C
- HAZARDOUS AREA CERTIFICATION: ATEX, IECEx, cULus, FM (e.g., [Ex ia Ga] IIC, [Ex ib Gb] IIC, [Ex ia Da] IIIC)
- COMPATIBILITY/APPLICATION:
- APPLICATION: Intrinsic safety interface for connecting sensors in Zone 0, 1, 2 (gas) and Zone 20, 21, 22 (dust) hazardous areas to safe area control systems (PLCs, DCS)
- SAFETY INTEGRITY LEVEL: Suitable for safety-related applications up to SIL 2 (IEC 61508/IEC 61511) or PL c (ISO 13849)