Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.

Weatherproof

So constructed or protected that the exposure to the weather will not interfere with its successful operation. It is suitable for outdoor use. A type 3 NEMA enclosure.

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