Brush KOS-60 One Time Fuse

KOS-60 is a 60 A, 600 V Class K5 one-time fuse designed for fast-acting protection of low-voltage circuits in industrial and commercial equipment, including control panels, motor starters, and power-distribution assemblies. It features ferrule terminals, a non-indicating design, and a 50 kA interrupting rating at 600 V AC (with a 300 VDC rating noted on certain data sheets), delivering reliable safeguarding for short-circuit events without nuisance tripping. The device is a single-barrel ferrule fuse about 5-1/2 inches long and 1-1/16 inches in diameter, and is listed under UL 248-9 and CSA C22.2 standards, reflecting compatibility with common control cabinets and electrical enclosures. As a fast-acting, one-time class K5 fuse, it is designed to be replaced after operation rather than reset, providing clear single-use protection in systems where a non-reclosing device is required and where precise current rating matters for component longevity.