Elevator External call hop Lock Hitachi JK206 Elevator Power lock Parts
The elevator power lock is a lock added to the power switch, which aims to eliminate the safety hazards caused by turning the power on and off due to unauthorized operation during the operation of the equipment. The following is the classification of elevator power locks:
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Classification by voltage |
Low-voltage power lock |
mainly used for some small electrical appliances, electric toys, electric vehicles, etc. |
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High-voltage power lock |
mainly used for large equipment such as machine tools and elevators. |
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Classification by size |
Large power lock |
mainly refers to power locks with a diameter of 18mm and above. |
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Small power lock |
mainly refers to power locks with a diameter of 12mm. |
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Classification by controllable circuits |
Single-circuit power lock |
can only control one circuit. |
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Dual-circuit power lock |
can control two circuits at the same time, and is divided into two types: double-on and double-off and one-on and one-off. Among them, the double-on and double-off power lock refers to the two circuits being powered on and off at the same time; the one-on and one-off power lock refers to the two circuits always having one off and one on, and they cannot be on or off at the same time. |
