Bircher ESD3-6171-K234, a safety switching unit designed for monitoring tactile sensors in automated systems:

Technical Specifications

• Model: ESD3-6171-K234
• Type: Safety Controller
• Power Supply: 24 VDC
• Switching Capacity:
  • 24 VDC @ 1 A
  • 30 VAC @ 1 A (resistive load)
• Response Time: 50 ms
• Inputs: 2 sensor inputs
• Outputs:
  • 2 safety outputs
  • 1 status relay
• Mounting: DIN rail
• Weight: Approx. 0.51 lbs (230 g)
• Function: Monitors safety edges, mats, and bumpers using 8.2  resistance evaluation
• Status Indicators: LED indicators for activation and fault detection
• Safety Category: Typically Category 3 (EN ISO 13849-1)
• Replacement Model: Superseded by ESD3-364283/D