3M Bus Bar Heat Shrink Tubing, BBI-4A-50, O.D. 5.43 - 8.86 in (13.79 - 22.50 cm) 3M Bus Bar Heat Shrink Tubing BBI-A Series is designed for insulating rectangular, square, and round bus bar rated from 5 kV through 35 kVIt will also cover and insulate inline bolted connections of rectangular bus barsIt has high resistance to splitting, good solvent resistance, and excellent tracking resistance properties. Product Information Brand 3M Part # 7000006050 Origin Country USA Product Type Enclosures Product InformationASTM, IEC, ANSI, IEEE Approved and RoHS 2011/65/EU CompliantCan handle voltage ranges from 600 V to 35 kVFlame-retardantGood thermal endurance of up to 110?C (230?F)Helps to resist splitting and solventsHigh resistance to splittingMade of red cross-linked polyolefinResistant to physical damageUnaffected by normal cleaning fluids andWithstands temperatures of -55? C to 110? C (-67? F to 230? F)