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UL 198M Ed. 5-2018
Standard for Mine-Duty Fuses - Published Date: June 7, 2023
1.1 These requirements cover Class K and Class R fuses having an additional D-C rating and that are intended for use in protecting trailing cables in D-C circuits in mines in accordance with the requirements of the United States Department of Labor, Mine Safety and Health Administration. 1.2 These fuses have a maximum current rating of 600 A, a voltage rating of 300 or 600 V dc, and an interrupting rating of 20,000 A dc.
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