Product Overview:

The KFA6-SR2-Ex1.W is an isolated switch amplifier designed for intrinsic safety applications. It transfers digital signals from hazardous areas to safe areas, supporting NAMUR sensors and mechanical contacts. The amplifier features relay contact output, line fault detection (LFD), and SIL 2 compliance, ensuring high reliability in industrial automation and process control.

Technical Specifications:

• Input Type: Digital (NAMUR sensors, mechanical contacts)
• Supply Voltage: 207 – 253V AC, 45 – 65 Hz
• Power Consumption: ≤ 1W
• Output:
  • Relay Contact (Form C changeover contact)
  • Max Load: 253V AC / 2A, 126.5V AC / 4A, 40V DC / 2A (resistive load)
• Switching Frequency: <10 Hz
• Response Time: ~20 ms
• Line Fault Detection (LFD): Supports monitoring of lead breakage and short circuits
• Galvanic Isolation: Reinforced isolation according to IEC 61010-1
• Protection Rating: IP20
• Operating Temperature: -20°C to 60°C
• Mounting: DIN Rail (35mm)
• Mechanical Life: 10 million switching cycles
• Certifications & Compliance: ATEX, IEC 61508 (SIL 2), IEC 61010-1, EN 60947-5-6