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Elevator Switch with Mechanical Trigger Structure Normally Closed Contact Output and IP40 Protection

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December 23, 2025
Category Connection: Elevator Spare Parts
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#Elevator Spare Parts #Elevator Spare Parts Supplier #Lift Spare Parts
Brief: Watch the demo to catch practical tips and quick performance insights. This video provides a detailed walkthrough of the TAA177AH2 elevator switch, showing its mechanical trigger structure and how it monitors speed governor tension. You'll see how this critical safety component provides overspeed trigger signals and ensures elevator safety circuit compliance in real-world applications.
Related Product Features:
  • Mechanical trigger structure with normally closed contact output for reliable safety circuit operation.
  • IP40 protection rating ensures durability in demanding industrial elevator environments.
  • Specifically designed for compatibility with OTIS elevator systems, including the GEN2 model.
  • Installs directly on the pit tensioner assembly side for straightforward integration.
  • Rated for 2A current and 150VAC voltage with a mechanical life exceeding 1,000,000 operations.
  • Triggers emergency braking when tension abnormalities or speed governor activation occurs.
  • Compatible with wire ropes ranging from 6mm to 10mm in diameter.
  • Features 2-pin quick-connect terminal wiring for simplified installation and maintenance.
FAQs:
  • What elevator systems is the TAA177AH2 switch compatible with?
    The TAA177AH2 is specifically designed for compatibility with mainstream OTIS elevator systems, including the OTIS GEN2 model, making it an ideal replacement part for these applications.
  • How does this elevator switch contribute to safety?
    This switch monitors tension in the speed governor wire rope and provides overspeed trigger signals. When tension abnormalities occur or the speed governor activates, it triggers the safety circuit to open and initiate emergency braking, ensuring elevator safety compliance.
  • What are the electrical specifications and lifespan of this switch?
    The switch has a rated current of 2A and rated voltage of 150VAC. It offers a mechanical life of ≥1,000,000 operations and an electrical life of ≥500,000 operations, ensuring long-term reliability in elevator safety systems.
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