UL Standard for Safety Automatic Electrical Controls for Household and Similar Use; Part 2: Particular Requirements for Energy Regulators (Second Edition)
"This clause of Part 1 is applicable except as follows: Replacement: In general@ this part of IEC 60730 applies to energy regulators for use in@ on@ or in association with equipment for household and similar use@ including energy regulators for heating@ air conditioning and similar applications. The equipment may use electricity@ gas@ oil@ solid fuel@ solar thermal energy@ etc. or a combination thereof. These energy regulators may be thermally@ mechanically or electrically operated. Replacement: This standard applies to the inherent safety@ to the operating values@ operating times and operating sequence where such are associated with equipment safety@ and to the testing of automatic electrical energy regulator devices used in@ or in association with@ household or similar equipment. This standard is also applicable to energy regulators for appliances within the scope of IEC 60335-1. Throughout this standard the word ""equipment"" means ""appliance and equipment"". This standard does not apply to automatic electrical energy regulators designed exclusively for industrial applications. This standard is also applicable to individual energy regulators utilized as part of a control system or energy regulators which are mechanically integral with multi-functional controls having non-electrical outputs. Energy regulators for equipment not intended for normal household use@ but which nevertheless may be used by the public@ such as equipment intended to be used by laymen in shops@ in light industry and on farms@ are within the scope of this standard."