The upper limit switch on a construction elevator is a position switch for the upper limit, while the upper ultimate limit switch is a protective limit switch that activates when the limit switch fails.
The AC ultimate limit switch operates at an AC voltage of 380V (440V). It is used in the power supply circuit of construction elevators on construction sites. When a malfunction occurs in the elevator, this switch disconnects the main power supply of the elevator to protect the construction elevator.
The JK16-100 AC ultimate limit switch is mainly suitable for the power supply circuit of construction elevators with an AC frequency of 50Hz (60Hz), a rated working voltage of up to 380V (440V), and a rated working current of 100A. When the elevator's limit switch fails, this switch disconnects the elevator's main power supply to achieve terminal protection for the construction elevator.