3M™ Bus Bar Heat Shrink Tubing BBI-9A

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Get durable and reliable protection that helps prevent failures and downtime in applications from 5-35 kV. 3M™ Heat Shrinkable Bus Bar Tubing BBI-9A covers and insulates rectangular, square or round bus bars, and resists splitting and solvents.

Expanded Wall Thickness
0.054 in
Cross-linked Polyolefin
Maximum Operating Temperature (Celsius)
110 Degree Celsius
Maximum Recovered Tubing I. D.
3.78 in
Minimum Expanded Tubing I. D.
8.83 in
Operating Temperature (Celsius)
-55 °C to 110 °C
Operating Temperature Range (Celsius)
-55 °C to 110 °C
Outside Diameter (Bar Circumference)
12.29 - 19.23 inch
Overall Length (Metric)
15.24 Meter
Product Color
Orange, Red
Product Technology
Heat Shrink
Product Type
Bus Bar Tubing
Recovered Wall Thickness
0.127 in
Rectangular Size
(6 x 1/4) to (6 x 3/4) Inch (for 35 kV), (6 x 1/4) to (9 x 3/4) Inch (for 5 kV, 8 kV, 15 kV, 25 kV)
RoHS 2011/65/EU Compliant
RoHS EU Comments
RoHS 2011/65/EU compliant without exemption
Round Size (Diameter)
15 kV), 4 - 4-7/8 Inch (for 35 kV), 4 to 4-7/8 Inch (for 25 kV), 4 to 6-1/8 Inch ( for 5 kV, 8 kV, See Sizing Chart on Data Sheet
Rectangular, Round, Square
Shrink Ratio
Square Size
(3-1/2 x 3-1/2) to (4 x 4) Inch (for 25 kV), (3-1/2 x 3-1/2) to (5 x 5) Inch (for 5 kV, 8 kV, 15 kV), 12.29 - 19.23 inch OD (for 35 kV)
Units per Case
15 kV, 25 kV, 35 kV, 5 kV, 8 kV

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Manufacturing Origin: USA

The designation that a product is Manufactured in the USA means the product undergoes substantial transformation in one of our U.S. Manufacturing plants. Some products contain imported components.

Note: 3M products offered on a government contract that require country of origin representation must be certified by 3M Trade Compliance. Contact customer service at 800-245-3573 to request a certificate.