UL 498A and UL 498-2004 are both technical standards developed by Underwriters Laboratories (UL) to ensure the safety and reliability of electrical connections. While both standards have similar goals, they address different aspects of the electrical industry.
UL 498A is focused specifically on the requirements for plugs, receptacles, and attachment plugs used in North America. It defines specific criteria that manufacturers must meet to achieve UL certification. By adhering to these standards, manufacturers can provide assurance to consumers that their products have undergone thorough testing and comply with industry safety requirements.
UL 498-2004, on the other hand, is a widely recognized standard for the safety of attachment plugs and receptacles. It specifies performance and construction requirements for attachment plugs and receptacles, including ratings, configurations, and markings. The standard covers various types of plugs and sockets, from simple household ones to more complex industrial designs.
In summary, UL 498A is focused on the safety and reliability of electrical connections in North America, while UL 498-2004 is focused on the safety of attachment plugs and receptacles in a wide range of applications. Both standards are important guidelines for manufacturers of electrical devices and components, and they help ensure the safety and reliability of electrical connections for consumers.
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