UL 1240 PDF

1 Scope

1.1 These requirements cover electric commercial, industrial, and institutional clothes-drying equipment intended for use in accordance with the National Electrical Code, NFPA 70. Equipment covered by this Standard is not intended for use by the general public, but only by trained or supervised personnel.

1.2 These requirements do not cover coin-operated clothes-drying equipment, flatirons, ironing machines, water heaters, water softeners, dry-cleaning machines, garment-finishing machines, clothes washers, or other equipment covered by requirements separate from this standard.

1.3 Appliances and field-attached accessories including those that utilize some other source of energy – such as gas or steam– in addition to electric energy are investigated under these requirements and under such additional requirements as are applicable to the appliance under consideration.

Summary of Topics

This revision of ANSI/UL 1240 dated September 14, 2021 includes the replacement of the reference to UL 508C, Standard for Power Conversion Equipment, with a reference to UL 61800-5-1, Standard for Adjustable Speed Electrical Power Drive Systems – Part 5-1: Safety Requirements – Electrical, Thermal and Energy; 20A.2.4