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Bernstein Limit Switch 188-SU1Z – ID-NR. 59322440 with IP54 Protection and 30 Million Cycles for Ele

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December 09, 2025
Category Connection: Elevator Spare Parts
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#Elevator Spare Parts #Elevator Spare Parts Supplier #Lift Spare Parts
Brief: This video frames the solution within typical operational contexts for clearer understanding. You'll see a detailed walkthrough of the Bernstein 188-SU1Z limit switch, demonstrating its robust IP54-rated housing and fixed roller lever design in elevator and industrial settings. We'll explain how its positive-break NC contact ensures safety and showcase its installation process with captive mounting screws for secure, efficient setup.
Related Product Features:
  • Features a snap-action positive-break NC contact for guaranteed machine stop safety, even with welded contacts.
  • IP54 protection rating ensures reliable operation against dust and water splash in demanding environments.
  • Fixed roller lever design provides a repeatable trip point without requiring further adjustments.
  • Rated for a mechanical life of 30 million cycles, ensuring long-term durability and reduced maintenance.
  • Captive M5 mounting screws facilitate secure installation and prevent loss during maintenance.
  • Operates across a wide temperature range from -30 °C to +80 °C for versatile application use.
  • Complies with IEC 60947-5-1 and EN 60947-5-1 standards, supporting global machine exports.
  • Includes 2 × M20 conduit entries for easy cable connection with diameters from 6 to 12 mm.
Faqs:
  • What is the key safety feature of the Bernstein 188-SU1Z limit switch?
    The key safety feature is its positive-break NC contact, which guarantees a safe machine stop even if the contacts weld shut, ensuring operational safety in critical applications like elevators.
  • Where can this limit switch be typically used?
    It is ideal for passenger elevator limit and slowdown switches, lifting-platform end stops, packaging-machine guard monitoring, and conveyor over-travel protection in various industrial settings.
  • How does the IP54 rating benefit the switch's performance?
    The IP54 protection rating means the switch is dust-protected and resistant to water splashes, making it suitable for reliable use in outdoor environments or elevator shafts where such conditions are common.
  • What is the mechanical life expectancy of this limit switch?
    The Bernstein 188-SU1Z is rated for a mechanical life of at least 30 million operations, providing long-lasting performance and reducing the need for frequent replacements.
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