Cooper Bussmann LKS-600 Fuse Link

Cooper Bussmann LKS-600 Fuse Link is a 600-volt, 600-amp renewable fuse link in the Bussmann Series (now Eaton Bussmann Series), engineered for slow-blow protection in large feeders and power-distribution circuits. The LKS-600 is a Class H, K5 renewable fuse link designed to be used with RES-600 fuse blocks, and it is supplied in an L-style form that measures 13.38 inches in length for use in equipment enclosures and switchgear where a long, renewable link is required. With a 600 VAC rating, this fuse link provides non-current-limiting protection for industrial and commercial structures, enabling replacement in renewable fuse assemblies without replacing the entire block. The LKS-600 is widely referenced by distributors as part of the Bussmann Series lineup and is typically selected when upgrading or maintaining RES-600-based protection schemes. The fuse link's slow-blow characteristic helps accommodate temporary inrush currents common in motors and other heavy loads, while delivering reliable protection in 600‑V distribution networks.