What is the benefit of a product that is rated Class 350 or Class 125 when most fires exceed temperatures of 350°F or 125°F?

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What is the benefit of a product that is rated Class 350 or Class 125 when most fires exceed temperatures of 350°F or 125°F?

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The Underwriters Laboratories, Inc. class rating signifies the maximum internal temperature allowed during the fire test. Depending on the length of the UL fire test, the external temperature to which the product is subjected will range from 1550°F to 2000°F; yet the internal temperatures cannot exceed 350°F or 125°F- for paper or computer media, respectively.

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