ОПИСАНИЕ ПРОДУКТА
PEPPERL & FUCHS 255621 - KFD2-SR2-EX1.W Intrinsic Safety Barrier
The PEPPERL & FUCHS KFD2-SR2-EX1.W is a 2-channel intrinsic safety barrier from the K-System family, engineered for galvanic isolation and signal conditioning of hazardous area inputs. It enables the connection of NAMUR sensors or dry contacts from Zone 0, 1, or 2 to safe area control systems, providing explosion protection and reliable signal transmission for process automation.
Technical Specifications:
- SERIES/FAMILY: K-System (KFD2)
- COMPONENT TYPE: Intrinsic Safety Barrier, Switch Repeater
- ELECTRICAL SPECS:
- SUPPLY VOLTAGE: 20-35 VDC (Nominal 24 VDC)
- POWER CONSUMPTION: 1.5 W
- INPUT: 2-channel for NAMUR sensors (EN 60947-5-6) or potential-free contacts
- OUTPUT: 2-channel relay output, changeover contact
- SWITCHING CAPACITY: Max. 250 VAC / 2 A / 500 VA (resistive) Max. 125 VDC / 2 A / 60 W (resistive)
- INTERFACE/CONTROL:
- SIGNAL TYPE: Digital input from hazardous area, relay output to safe area
- RESPONSE TIME: < 10 ms
- FREQUENCY RANGE: 0 to 5 kHz
- INDICATORS: LED status for input and output
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20
- OPERATING TEMPERATURE: -20 °C to +60 °C
- MOUNTING STYLE: 35 mm DIN rail
- SAFETY CERTIFICATION: ATEX, IECEx, UL, FM (for intrinsic safety)
- COMPATIBILITY/APPLICATION:
- HAZARDOUS AREA CLASSIFICATION: Suitable for connecting devices in Zone 0, 1, 2 (gas) and Zone 20, 21, 22 (dust)
- SAFETY INTEGRITY LEVEL (SIL): Up to SIL 2 according to IEC 61508
- TARGET APPLICATIONS: Process control, chemical processing, oil and gas, pharmaceutical manufacturing, water treatment, and other industries requiring explosion protection.
