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Article 620 - Elevators, Dumbwaiters, Escalators, Moving Walks, Wheelchair Lifts, and Stairway Chair Lifts

What is an electrical contractor responsible for in an elevator installation?

The electrical contractor is responsible for supplying the disconnecting means for the power to the elevator. These include the main supply power (620.51), the car lighting (620.22(A) and 620.53), and the HVAC (620.22(B) and 620.54).

What are the requirements of 620.22(A) and 620.53?

620.22(A) requires the lighting, receptacle(s), auxiliary lighting power source, and ventilation for the elevator car to be supplied by a separate branch circuit and the overcurrent protective device must be located in the elevator machine room or machinery space.

620.53 requires a single disconnecting means for the car lighting, receptacle(s) and ventilation that must be capable of being locked in the open position and located in the machine room or machinery space. It is also required to have an identifying number to correspond to the elevator that it supplies. This disconnect must be separate from the disconnecting means that supplies the main power to the elevator car for motion (620.51) and the disconnecting means that supplies the heating and air-conditioning (620.22(B) and 620.54).

What are the requirements of 620.22(B) and 620.54?

620.22(B) requires the heating and air-conditioning source to be supplied by a dedicated branch circuit for each car and the overcurrent protective devices for each circuit must be located in

the machine room or machinery space. 620.54 requires a single disconnecting means for the heating and air-conditioning source that must be located in the machine room or machinery space and must be capable of being locked in the open position. This disconnect must also be separate from the disconnecting means that supplies the main power to the elevator car for motion (620.51) and the disconnecting means that supplies the lighting, receptacle(s), auxiliary lighting power source, and ventilation (620.22(A) and 620.53).

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