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188-SU1Z 59322440

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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: Watch as we walk through the full process, from initial setup to real-world testing of the Bernstein 188-SU1Z Limit Switch. This video demonstrates the installation of the IP54-rated safety switch, showcases its fixed roller lever operation, and explains how its positive-break NC contact ensures reliable machine stopping in elevator and industrial applications.
Related Product Features:
  • Features a snap-action positive-break NC contact that ensures safe machine stop even if contacts weld.
  • IP54-rated plastic housing provides protection against dust and water splash for outdoor or elevator-shaft use.
  • Fixed roller lever design offers a repeatable trip point without requiring further adjustment.
  • Captive M5 mounting screws enable secure installation and prevent loss during maintenance.
  • Rated for 10 A 250 V AC with a thermal current of 10 A for robust electrical performance.
  • Mechanical life of ≥ 30 million cycles ensures long-term reliability in demanding applications.
  • Operating temperature range from -30 °C to +80 °C allows use in varied environmental conditions.
  • Complies with IEC 60947-5-1 and EN 60947-5-1 standards for global export compatibility.
Faqs:
  • What is the primary safety feature of the Bernstein 188-SU1Z limit switch?
    The switch features a positive-break NC contact that guarantees a safe machine stop even if the contacts become welded, ensuring operational safety in critical applications like elevators.
  • What environmental protection does this limit switch offer?
    It has an IP54 protection rating, meaning the housing is sealed against dust ingress and water splashes, making it suitable for outdoor use or in elevator shafts where such conditions may occur.
  • How many operational cycles can this switch withstand?
    The Bernstein 188-SU1Z is designed for a mechanical life of ≥ 30 million cycles, providing long-term durability and reliability in high-frequency industrial environments.
  • What are the typical applications for this limit switch?
    It is commonly used in passenger elevator limit and slowdown switches, lifting-platform end stops, packaging-machine guard monitoring, and conveyor over-travel protection systems.
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