If an industrial control panel is to be marked with its SCCR by the panel builder, the available fault current must be determined and the date it was performed must be available to the inspector or the AHJ.

If an industrial control panel is to be marked with its SCCR by the panel builder, the available fault current must be determined and the date it was performed must be available to the inspector or the AHJ.

• A. True
• B. False
• C. Only if requested
• D. Not specified

Answer: (A)

Determining the available fault current and documenting when that rating was established are essential parts of marking a panel with its SCCR. The SCCR shows the highest fault current the assembled control panel can safely interrupt, so the inspector or AHJ must know the actual fault current that could occur at the panel’s location to confirm the panel’s rating is adequate for that installation. The date the SCCR was tested or established matters because it verifies the rating is current and that the panel configuration and components were evaluated for that specific condition. If this information isn’t available, the AHJ cannot confirm the panel meets the safety requirements for the site. Therefore, the statement is true.

Determining the available fault current and documenting when that rating was established are essential parts of marking a panel with its SCCR. The SCCR shows the highest fault current the assembled control panel can safely interrupt, so the inspector or AHJ must know the actual fault current that could occur at the panel’s location to confirm the panel’s rating is adequate for that installation. The date the SCCR was tested or established matters because it verifies the rating is current and that the panel configuration and components were evaluated for that specific condition. If this information isn’t available, the AHJ cannot confirm the panel meets the safety requirements for the site. Therefore, the statement is true.