General Elevator Limit Switch CR400-NF CR400-NZ Elevator Parts

Dimensions: 72x31x31mm

AC-15:230V 4A

DC-13:24V 1A

Since the elevator moves up and down within a certain height range, it is necessary to stop the elevator when it reaches the bottom and top of the shaft to avoid damage to the elevator. The limit switch here needs to be connected in series to the safety circuit of the motor. When the elevator car approaches the upper and lower limit positions, the circuit between the motor and the controller can be cut off by triggering the limit switch, and the elevator will not be able to run. In addition to installing limit switches at the upper and lower limit positions of the shaft to protect the elevator, limit switches are usually installed at the upper and lower positions where the elevator needs to stop to play a deceleration buffer role. Since the deceleration process of the elevator is usually short, in order to ensure that the elevator will not cause excessive acceleration due to too short a deceleration time and affect stability during the execution of the deceleration stop command, the limit switch can be used to ensure that there is enough travel during deceleration, thereby improving stability. On the other hand, the limit switch that plays a buffering protection role can also serve as the first layer of protection when the elevator runs to the limit position, further improving its safety and reliability.

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