UL 498F STANDARD FOR SAFETY Plugs, Socket-Outlets and Couplerswith Arcuate (Locking Type) Contacts
1 Scope
1.1 These requirements cover plugs, socket outlets (receptacles), couplers, cord connectors, and inlets,with arcuate contacts (locking-type configurations), rated 20 or 30 A grounding type only. All intended forconnection to a branch circuit for use in accordance with the NationalElectrical Code,ANSI/NFPA 70.
1.2These requirements do not cover plugs, socket outlets (receptacles), couplers, cord connectors, andinlets with arcuate contacts (locking-type configurations) rated 20 and 30 A non-grounding type, or devicesrated 15,50 or 60 A grounding or non-grounding type, refer to UL 498D Standard.
1.3 These requirements do not cover devices rated at more than 200 A or for more than 600 v.See 6.1.
1.4 This Standard does not directly apply to, but supplements the following standards:
a) Straight-blade attachment plugs，receptacles,cord connectors，and inlets，covered by theStandard for Attachment Plugs and Receptacles, UL 498;
b) Attachment plugs, receptacles, cord connectors, and inlets with arcuate contacts (locking-typeconfigurations)- Enclosure Types for Environmental Protection, UL 498E;
c) Inlets with arcuate contacts (locking-type configurations)- Marine Shore Power Inlets, UL 498M;
d) Devices produced integrally with flexible cord or cable, covered by the Standard for Cord Setsand Power-Supply Cords,UL 817;
e)Current taps and adapters not provided with wiring terminals for flexible cord covered by theStandard for Current Taps and Adapters, uL 498A;
f) Devices employing male or female screwshells, covered by the Standard for Lampholders, uL496;
g) Devices solely intended for direct connection to the branch circuit in accordance with theNational Electrical Code,ANSI/NFPA 70, that are provided with contacts of the pin and sleeve type,covered by the Standard for Plugs,Receptacles and Cable Connectors of the Pin-and-SleeveType, UL 1682;
h) Single and multipole connectors intended for factory assembly to copper or copper alloyconductors or printed wiring boards for use in data, signal, control and power applications withinand between electrical equipment, covered by the Standard for Component Connectors for Use inData,Signal, Control and Power Applications, UL 1977;
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