What are the common safety circuit switches for elevators?
Answer: Computer room: control panel emergency stop switch, phase sequence relay, thermal relay, speed limiter switch
Well: upper limit switch, lower limit switch (some elevators put these two switches in the safety circuit, and some use these two switches to directly control the power supply)
Pit: Broken rope maintenance switch, pit repair box emergency stop switch, buffer switch
Inside the car: control box emergency stop switch
Car top: safety window switch, safety clamp switch, car top maintenance box emergency stop switch
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