UL 197

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These requirements cover commercial electric cooking appliances rated 600 volts or less and intended for use in accordance with the National Electrical Code, NFPA-70.

These requirements cover coffee makers, conductive cookers, food warmers, fryers, griddles, steam kettles, steam cookers, nut warmers, popcorn machines, ranges, utensil warmers, and other appliances usually found in commercial kitchens, restaurants, or other business establishments where food is dispensed.

These requirements do not cover vending machines, cooking appliances intended for household use, commercial cooking appliances rated more than 600 volts, or microwave cooking appliances.

An appliance designed so that it can be mounted and supported at an outlet box, such as a food warmer, will be judged on the basis of compliance with the requirements in this standard and with the mounting and weight requirements for electric lighting fixtures.

An appliance that also utilizes heat produced by a means other than electrical, for example, coal, gas, or oil, is also investigated with respect to such additional risk of fire.

A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.