Definition of limit switch in English:

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limit switch

noun

A switch preventing the travel of an object in a mechanism past some predetermined point, mechanically operated by the motion of the object itself.
Example sentences
  • There are two conditions which may be causing unwanted operation of your furnace blower: The temperature limit switch may be turning on when temperatures are less than 150 degrees.
  • It is equipped with a high-temperature limit switch that automatically turns the fireplace off if it exceeds a certain temperature.
  • The problem with the crown stalling before it went up the incline was caused by a simple mechanically-operated limit switch triggered by the telemetry signal.

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