UL 73:2020 pdf download.STANDARD FOR SAFETY-Motor-Operated Appliances.
1.1 These requirements cover motor-operated appliances to be employed in accordance with the National Electrical Code, NFPA 70.
1.2 These requirements also cover small utilization appliances, such as vibrators in which motion of an operating part is produced by electrical means.
1.3 These requirements do not cover appliances rated more than 600 V; nor do they cover appliances involving universal motors rated more than 250 V.
1.4 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, automotive and garage equipment, or other motor-operated appliances that are covered by individual requirements.
1.5 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.
1.6 Manually operated die-cutting machines without electrical parts need only comply with the following
applicable requirements. Industrial machines of this type are not addressed by these requirements.
a) Protection Against Injury to Persons — Sections 32—36 and 41;
b) Performance — Section 58;
c) Markings — 70.1 (excluding electrical rating); and
d) Instruction Manual — Section 71.
11.7 Deleted
2 Glossary
2.1 For the purpose of this standard the following definitions apply.
2.2 APPLIANCE COUPLER — A single-outlet, female contact device for attachment to a flexible cord as part of a detachable power-supply cord to be connected to an appliance inlet (motor attachment plug).
2.3 APPLIANCE INLET (MOTOR ATTACHMENT PLUG) — A male contact device mounted on an end product appliance to provide an integral blade configuration for the connection of an appliance coupler or cord connector.
2.4 APPLIANCE (FLATIRON) PLUG — An appliance coupler type of device having a cord guard and a slot configuration specified for use with heating or cooking appliances.
2.5 AUTOMATIC SOLAR PANEL CLEANING SYSTEM — a household or commercial, outdoor use cleaning system primarily comprised of an irrigation controller, motor-operated water pump, electrically operated zone valves, and water nozzles. The system is intended to be hose-connected to a water supply rated less than 100 psig, and the water nozzles and associated zone valves are intended for rooftop or ground installation near the solar panels. No other electrical equipment of the system is intended for roof mounting.UL 73 pdf download.