Eaton XBUK6FSI is a flat-type fuse terminal block designed for circuit protection and secure electrical connections in industrial control and power distribution systems. It is rated for 30 amps continuous current and 300 VAC, supporting wire sizes from 26 to 8 AWG in a single pole configuration. The block features a black polyamide 6.6 housing, measures approximately 2.9 inches in length, and weighs 0.04 lb, with a terminal block mount for reliable panel installation. It complies with UL standards for safety and performance. Typical applications include industrial control panels and power distribution systems requiring compact fuse protection.