Ferraz Protistor K300067 high-speed fuse, designed for protecting semiconductors in power conversion equipment. Rated for 660-700V AC and 500A, with a "gR" class rating indicating very fast acting and full-range protection. Commonly used for protecting rectifiers, inverters, static switches, AC & DC drives, and UPS systems. Box of 3. New condition. These are old stock that has been dry stored so some discolouration but doesn’t affect use.
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