UL 73

These requirements cover motor-operated appliances to be employed in accordance with the National Electrical Code, NFPA 70.

These requirements also cover small utilization appliances, such as vibrators in which motion of an operating part is produced by electrical means.

These requirements do not cover appliances rated more than 600 volts; nor do they cover appliances involving universal motors rated more than 250 volts.

These requirements do not cover equipment intended particularly for the control of electric motors; separator motors; nor electric clocks, fans, clothes dryers, washing machines, hair dryers, tools, waste disposers, dishwashers, office appliances and business equipment, refrigerators, air conditioners, vending and amusement machines, hair clippers and shavers, snow movers, or other motor-operated appliances that are covered by individual requirements.

An appliance that utilizes some other source of energy, such as gas or steam, in addition to electric energy will be investigated under these requirements and under such additional requirements as are applicable to the appliance under consideration.

A product that contains features, characteristics, components, materials, or systems new or different from those in use when the Standard was developed, and that involves a risk of fire, electric shock, or injury to persons, shall be evaluated using the appropriate additional component and end-product requirements as determined necessary to mai ntain the level of safety for the user of the product as originally anticipated by the intent of this Standard. .