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.
| UL Standards & Engagement | |
|---|---|
| Product Category | Standards and Technical Documents |
| Product Number | UL 198M |
| Product Name | Mine-Duty Fuses |
