UL 858A

The requirements in this standard cover solid-state control devices used in household electric ranges. Thes e requirement s supplement and, in some cases, amend the requirements in the Standard for Household Electri c Ranges, UL 858, and the Standard for Temperature-Indicating and -Regulating Equipment, UL 873.

These requirements cover a solid-state control that performs any of the following functions:

–a) Controls cooktop heating elements.

–b) Controls oven normal operating temperatures.

–c) Controls oven self-cleaning cycle operating temperatures.

–d) Controls oven self-cleaning cycle door lock system.

–e) Controls required signal lights or audible alarms.

–f) Serves as a temperature-limiting control for any of the functions noted in (a) ? (e).

–g) Controls a function needed so that the appliance complies with a specific requirement in the Standard for Household Electric Ranges, UL 858.

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.