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What requirements must be met to get a UL Listing on a panel?

April 26, 2017listing Met panel requirements UL

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What requirements must be met to get a UL Listing on a panel?

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Industrial control panels rated not more than 600 volts and for installation in ordinary locations are specified in UL 508A, the Standard for Safety of Industrial Control Panels. The requirements in the outline are based on UL 508, the Standard for Safety of Industrial Control Equipment; the national electrical code, NFPA 70; and the standard for industrial machinery, NFPA 79. An additional document is written for each individual panel builder and is intended to contain additional construction requirements and specific UL Recognized Components that have been found acceptable as a result of an engineering investigation.