1 Scope

1.1 These requirements cover cord-connected electrically operated lawn mowers rated 250 volts or less to be employed in accordance with ANSI/NFPA 70.

1.2 These requirements also cover battery-powered lawn mowers as specified in Battery-Powered Lawn Mowers, Supplement sa in this Standard.

1.3 These requirements do not cover equipment for use in hazardous locations as defined in the , ANSI/NFPA 70.

1.4 These requirements do not cover sulky-type lawn mowers, garden tractors or their attachments, flail mowers, sickle-bar mowers, robotic lawn mowers, or lawn mowers intended for commercial use.

1.5 In addition to the requirements in this standard, a lawn mower shall comply with ANSI B71.1, and with the Safety Standard for Walk-Behind Power Lawn Mowers, 16 CFR 1205.

1.6 In the text, a requirement that applies only to a rotary or other type of lawn mower is identified by a specific reference in that requirement to the specific lawn mower involved. Absence of the specific reference, or use of the term lawn mower, indicates that the requirement applies to all of the lawn mowers covered in this standard.

Summary of Topics

The revisions of ANSI/UL 1447 dated May 12, 2020 add references to UL 61800-5-1, Standard For Adjustable Speed Electric Power Drive Systems to replace all references to UL 508C, Standard for Power Conversion Equipment; 3.1, 5.6.4.1, and 5.15.4.4