Omron D4B-1170N safety limit switch NO + NC contacts

D4B series safety limit switches are designed for industrial applications to monitor the movement of machines and equipment, ensuring user safety. They are an essential part of machine safety systems, helping to ensure that industrial equipment operates safely and reliably. The switch is a mechanical safety limit switch that detects the position of moving machine parts.

Applications:

• Machine safety systems:
  • Prevents hazardous machines from starting when a safety gate or door is open.
• Robotics and automation:
  • Monitors robot movement paths and ensures they do not exceed predefined limits.
• Conveyor systems:
  • Detects potential overloads, obstacles, or movement changes.
• Packaging machines:
  • Controls the operation of moving parts and stops the machine safely when needed.
• Cranes and material handling:
  • Used to define endpoints and prevent overloading.

Safety limit switch technical details:

• Utilization category:
  • AC-15
• Rated operating current (Ie): 
  • 2A
• Rated operating voltage (Ue): 
  • 400VAC
• Contact mechanism:
  • 1x NO + 1x NC (snap-action)
• Insulation resistance:
  • 100 MΩ min. (at 500VDC) between terminals of the same polarity and between each terminal and non-current-carrying part.
• Contact resistance:
  • 25mΩ max. (initial value)
• Rated insulation voltage (Ui):
  • 600VAC (EN60947-5-1)
• Operating environmental pollution level:
  • 3 (EN60947-5-1)
• Conditional short-circuit current:
  • 100A (EN60947-5-1)
• Electric shock protection class:
  • Class I
• Shock resistance:
  • Destruction:
    • 1000 m/s² 2min.
  • Malfunction: 
    • 300 m/s² 2min.
• Operating temperature:
  • -40...+80°C
• Protection class:
  • IP67

Download Omron D4B-series safety limit switch technical datasheet