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393.40 Connectors and Enclosures
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Connections to busbar grid rails, cables, and conductors shall be made with listed insulating devices, and these connections shall be accessible after installation. A soldered connection shall be made mechanically secure before being soldered. Other means of securing leads, such as push-on terminals and spade-type connectors, shall provide a secure mechanical connection. The following connectors shall be permitted to be used as connection or interconnection devices:
- Load connectors shall be used for power from the busbar to listed utilization equipment.
- A pendant connector shall be permitted to suspend low-voltage luminaires or utilization equipment below the grid rail and to supply power from the busbar to the utilization equipment.
- A power feed connector shall be permitted to connect the power supply directly to a power distribution cable and to the busbar.
- Rail-to-rail connectors shall be permitted to interconnect busbars from one ceiling grid rail to another grid rail.
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