3M™ Bus Bar Heat Shrink Tubing BBI-5A-20 is made of specially formulated, cross-linked, flame-retardant, track-resistant polyolefin that will shrink to fit rectangular, square or round bus bars. This tubing comes in a case quantity of 20.3M Bus Bar Heat Shrink Tubing BBI-5A-20 covers and insulates rectangular, square or round bus bars, resists splitting and solvents, and provides excellent tracking resistance. It can handle voltage ranges from 600 V to 35 kV, reducing your inventory requirements and saving you time and money. The BBI-A material has a high resistance to splitting, while providing the flexibility to conform to bends in certain applications. The superior split resistance can prevent insulation failures and resulting downtimes. 3M Bus Bar Heat Shrink Tubing BBI-5A-20 is unaffected by normal cleaning fluids and is resistant to physical damage. It also features good thermal endurance of up to 110C (230F), which in turn contributes to a longer life and more stable performance. This product also provides excellent dielectric strength which allows the required space between bus bars and metal enclosures to be substantially reduced. 3M Bus Bar Heat Shrink Tubing BBI-5A-20 has closer spacing that reduces both the overall size of the assembly, and the overall cost.