The AC limit switch is used to control the power supply circuit of the construction elevator used in the construction site under the AC voltage of 380V(440V). When there is a problem with the elevator, use the switch to cut off the main power supply of the elevator, thus protecting the construction elevator.
JK 16- 100 AC limit switch is mainly used in the power supply circuit of construction elevator with AC 50Hz(60Hz), rated working voltage of 380V(440V) and rated working current of 100A. When the limit switch of the elevator loses its function, the switch is used to cut off the main power supply of the elevator to realize the terminal protection of the construction elevator.
Extended data
Main features of construction elevator:
1, complete and advanced protection device, equipped with national patented anti-falling safety device, the reliability ranks first among similar products.
2. The driving unit is placed above the top of the cage, and the bearing space in the cage is large.
3. Three-drive structure is adopted, with large bearing capacity.
4. The attachment device is stable, safe and reliable.
5. The floor space is small, only 24 square meters.
6. Smooth transmission, small vibration and comfortable ride.
7. Lightweight structure and convenient maintenance and disassembly.
8. The transmission mechanism is driven by three motors, so that the rack and pinion are evenly stressed, safe and stable.
9. In order to ensure the safe operation of the elevator, safety switches such as overload and speed limit are set in the circuit. When the above situation occurs in operation, the elevator will automatically avoid the accident immediately. All doors on the hanging cage are also limit switches. When any door is abnormally opened, the hanging cage cannot be started or stopped immediately.
Baidu encyclopedia-AC limit switch