UL 1567:2020 PDF Download

The UL 1567:2020 standard addresses the requirements for wire binding screw terminals found in receptacles and switches. This standard specifically applies to devices rated 15 or 20 A that are designed for use with solid conductor aluminum building wire.

The standard focuses on the direct connection of wiring conductor(s) to the binding head screw terminal(s) prior to inserting the device into an outlet box. It sets forth performance requirements for these wire binding screw terminals.

It is important to note that the requirements outlined in the UL 1567:2020 standard are in addition to the requirements specified in other related standards, such as the Standard for Attachment Plugs and Receptacles (UL 498) and the Standard for General-Use Snap Switches (UL 20). This indicates that the UL 1567:2020 standard provides supplementary guidelines specifically for wire binding screw terminals in receptacles and switches intended for use with aluminum wire.