These requirements cover a receptacle with integral switching means rated 600 V or less@ used in ordinary dry locations and intended for connection to a branch circuit in accordance with the National Electrical Code@ NFPA 70. A receptacle with integral switching means covered by this Outline shall meet the following requirements: a) No voltage greater than 600 V above ground will be present in the device@ b) An isolation transformer@ if provided@ will generally furnish power at a lower potential than the primary voltage; and c) The output of the device will not be located in a circuit operating at greater than 600 V above ground. d) The switching device shall be integral to the receptacle. e) A receptacle that is marked with the symbol shown in Table SA8.1 Reference No. 2 and does not employ an integral switching means intended for energy management and building automation@ are covered by the Standard for Attachment Plugs and Receptacles@ UL 498. This Outline does not directly apply to@ but may supplement the following standards: a) Devices produced integrally with flexible cord or cable@ covered by the Standard for Cord Sets and Power-Supply Cords@ UL 817; b) Current taps and adapters covered by the Standard for Current Taps and Adapters@ UL 498A; c) Devices employing male or female screwshells@ covered by the Standard for Lampholders@ UL 496; d) Single and multipole connectors intended for factory assembly to copper or copper alloy conductors or printed wiring boards for use in data@ signal@ control and power applications within and between electrical equipment@ covered by the Standard for Component Connectors for Data@ Signal@ Control and Power Applications@ UL 1977; e) Devices intended for installation and use in hazardous (classified) locations in accordance with the National Electrical Code@ NFPA 70@ covered by the Standard for Explosion-Proof and Dust-Ignition-Proof Equipment for Use in Hazardous (Classified) Locations@ UL 1203; f) Devices intended for use with telecommunications networks@ covered by the Standard for Information Technology Equipment ?C Safety ?C Part 1: General Requirements@ UL 60950-1@ or the Standard for Communications Circuit Accessories@ UL 1863; g) Devices incorporating ground-fault circuit interruption circuitry@ covered by the Standard for Ground-Fault Circuit Interrupters@ UL 943; h) Direct plug-in devices incorporating transient voltage surge suppression circuitry@ covered by the Standard for Surge Protective Devices@ UL 1449; i) Direct plug-in devices incorporating electromagnetic interference filter circuitry@ covered by the Standard for Electromagnetic Interference Filters@ UL 1283; j) Cord-connected@ relocatable power taps intended only for indoor use as a temporary extension of a grounding alternating-current branch circuit for general use@ covered by the Standard for Relocatable Power Taps@ UL 1363. k) Energy management equipment covered by the Standard for Energy Management Equipment@ UL 916.
UL SUBJECT 498B-2015 history
2017UL SUBJECT 498B-2017 UL Outline of Investigation for Receptacles with Integral Switching Means (Issue 4)
2016UL SUBJECT 498B-2016 Outline of Investigation for Receptacles with Integral Switching Means (Issue 3)
2015UL SUBJECT 498B-2015 UL Outline for Investigation Receptacles with Integral Switching Means (Issue 2)
2014UL SUBJECT 498B-2014 UL Outline for Investigation Receptacles with Integral Switching Means (Issue 1)