Fit this 3M Bus Bar Heat Shrink Tubing BBI-6A snugly around inline bolted connections of rectangular, round or square bus bars thanks to its industry-standard heat shrinking capabilities. This red tubing resists splits and damage from solvents, and it leaves you with an attractive insulation cover that looks professional and doesn't draw attention to itself. Color-coding speeds up your electrical work because it lets you identify wires quickly and easily, and this tubing is 110 to 125 kV BIL-rated to protect against power surges. Use it with metal-enclosed, copper or aluminum bus bars, as well as with metal-clad and substation switchgear to provide needed insulation. This heat shrink tubing withstands temperatures ranging from -67 to 230 degrees F (-55 to 110 degrees C), and it's ASTM, IEC, ANSI, IEEE Approved and RoHS 2011/65/EU Compliant.