PRODUCT DESCRIPTION
PEPPERL & FUCHS 295670100312 - KFD2-SR2-EX1.W Intrinsic Safety Barrier Switch Amplifier
This device is a 2-channel intrinsic safety barrier from the K-System family, engineered to interface NAMUR proximity sensors or mechanical contacts located in hazardous areas with safe area control systems. It provides galvanic isolation between the hazardous and safe areas, ensuring signal integrity and maintaining explosion protection. The unit features two potential-free relay outputs per channel for status indication and control, suitable for applications requiring up to SIL 2 functional safety.
Technical Specifications:
- SERIES/FAMILY: K-System, KFD2-SR2-EX1.W
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Amplifier, Galvanic Isolator
- CHANNELS: 2
- INPUT SIGNAL: NAMUR proximity sensors (EN 60947-5-6) or dry contacts from hazardous areas
- OUTPUT SIGNAL: 2 potential-free changeover relay contacts per channel
- OUTPUT RATING: 250 VAC / 2 A or 125 VDC / 0.2 A (resistive load)
- SUPPLY VOLTAGE: 20-35 VDC
- FUNCTIONAL SAFETY: Up to SIL 2 according to IEC/EN 61508
- EXPLOSION PROTECTION: [Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I, [Ex ia] IIC, [Ex ia] IIB, [Ex ib] IIC, [Ex ib] IIB for Zone 0, 1, 2 applications
- MOUNTING: 35 mm DIN rail
- ENCLOSURE RATING: IP20
- OPERATING TEMPERATURE: -20 °C to +60 °C
- APPLICATION: Interfacing hazardous area field devices with safe area control systems in process automation, chemical, oil & gas, and pharmaceutical industries.