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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 short presentation tells the story behind the design and its intended use cases. You'll see a detailed walkthrough of the CR137-BZ-T2 industrial limit switch, exploring its robust construction and failsafe operation in demanding environments like elevator systems. The video demonstrates how its positive-break mechanism and IP54 protection ensure reliable safety circuit performance.
Related Product Features:
  • Features a positive-break NC contact for failsafe compliance with IEC 60947-5-1, ensuring machine stop even during contact weld scenarios.
  • Equipped with a fixed roller lever providing consistent 1.5 mm pre-travel without requiring field adjustments.
  • IP54-rated housing offers robust protection against dust, oil, and water, suitable for both indoor and outdoor panel mounting.
  • Designed for a mechanical life of 30 million cycles, significantly reducing maintenance downtime and operational costs.
  • Includes two M20 cable entries to facilitate fast and flexible wiring with optional double cable glands for cables Ø 6-12 mm.
  • Constructed with a glass-fibre reinforced PBT housing and stainless-steel roller lever for durability in high temperatures up to 80°C.
  • Operates reliably across a wide ambient temperature range from -30°C to +80°C without performance degradation.
  • Ideal for elevator limit and slowdown systems, overhead-door end-stops, and conveyor over-travel guards.
Faqs:
  • What is the primary safety feature of the CR137-BZ-T2 limit switch?
    The primary safety feature is its positive-break NC contact, which ensures the machine stops even if the contacts weld together, providing failsafe compliance with IEC 60947-5-1 standards.
  • What level of environmental protection does this limit switch offer?
    It offers IP54 protection, making it resistant to dust and water splashes, which allows for reliable operation in both indoor and outdoor industrial environments.
  • How many cable entries does the switch have and what are they used for?
    It has two M20 cable entries, which facilitate fast and flexible wiring and allow for the use of optional double cable glands for cables with diameters between 6 mm and 12 mm.
  • In what applications is the CR137-BZ-T2 typically used?
    It is commonly used in elevator limit and slowdown systems, overhead-door end-stops, conveyor over-travel guards, and packaging-machine position feedback due to its reliability and safety features.
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