3M™ Better Buried
Closures
Communication Markets Division
3M™ Better Buried Closure
Buried Compound
Compression/Gravity
Fill Closure
The 3M™ Better Buried Closure’s
versatile design meets most cable
size requirements for buried inline,
tap, butt splices, cable and sheath
repair. Eight standard sizes and
ve end cap congurations allow
you to protect buried splices of
almost any practical length and
diameter. Better buried closures use
compound compression or a gravity
ll method of encapsulating and
protecting the cable splice.
Better Buried Closures use either
3M™ MS2™ 25-pair Splicing Module
or 3M™ Scotchlok™ Connector
UR2/UR.
Product Features
Better Buried End Caps
Tapered end caps can be trimmed
and slit for exact cable size
required. Single, double and triple
entry styles are available dependent
on size. When adding a branch
cable to an existing cable, grooved
end caps can be easily split in the
eld and quickly released with
Locking “H” strips provided in
each kit.
3M Scotchcast™ Strain Relief Bars
Strain relief bars can be installed
on a simple or double sheath cable
to protect the splice from electrical
interference and damage from the
cable tension. The aluminum strain
relief bar assemble includes hose
clamps and an insulation sleeve.
3M Scotchcast Spacer Web 4430
Spacer web is designed to protect
splice connectors by positioning
them away from the closure
walls. Better coverage is achieved
because compound ows around
the complete bundle.
• Protects splice components
• Enhanced coverage
Hose Clamps
Hose clamps secure the closure
body and end caps.
• Corrosion resistant
• Easy to install
• Re-enterable
3M™ Better Buried Closures Product Specications
Closure End Cap Port Diameters Maximum Splice Openings Approx. Amount of
Comp. Required
(Ave. Splice)
Closure Size Single Entry
(Max.)
Multiple Entry (Max.) Single Sheath Double Sheath
1 2 3 Outer Inner
2" x 12"
(50 × 305 mm)
1.2"
30 mm
1.2"
30 mm
0.7"
18 mm -5"
127 mm --21 oz.
600 gms
2" x 24"
(50 × 610 mm)
1.2"
30 mm
1.2"
30 mm
0.7"
18 mm -17"
432 mm
17"
432 mm
14"
356 mm
42 oz.
1200 gms
3" x 24"
(76 × 610 mm)
1.6"
41 mm
1.6"
41 mm
1.0"
25 mm -17"
432 mm
17"
432 mm
14"
356 mm
106 oz.
3000 gms
4" x 24"
(102 × 610 mm)
2.0"
51 mm
2.0"
51 mm
1.5"
38 mm -17"
432 mm
17"
432 mm
14"
356 mm
159 oz.
4500 gms
5" x 26"
(127 × 660 mm)
2.4"
61 mm
2.4"
61 mm
1.8"
46 mm -19"
483 mm
19"
483 mm
16"
406 mm
254 oz.
7200 gms
6" x 26"
(152 × 660 mm)
3.3"
84 mm
2.7"
68 mm
2.0"
50 mm
1.5
40 mm
19"
483 mm
19"
483 mm
16"
406 mm
441 oz.
12500 gms
7" x 26"
(178 × 660 mm)
3.5"
89 mm
3.5"
89 mm
2.2"
56 mm
2.2
56 mm
19"
83 mm
19"
83 mm
16"
406 mm
530 oz.
15000 gms
9" x 26"
(229 × 660 mm)
4.0"
102 mm
4.0"
102 mm
2.5"
64 mm
2.5
64 mm
19"
483 mm
19"
483 mm
16"
06 mm
742 oz.
21000 gms
Maximum Splice Bundle Capacities
Connector 2" x 12"
50 × 305
mm
2" x 24"
50 × 610 mm
3"x 24"
76 × 610 mm
4" x 24"
102 × 610
mm
5" x 26"
127 × 660
mm
6" x 26"
152 × 660
mm
7" x 26"
178 × 660
mm
9" x 26"
229 × 660
mm
3M™ MS2™ Splicing
Module 4000-DWP
50 pair
0.5 mm
(24 AWG)
UY Only
100 pair
0.5 mm
(24 AWG)
200 pair
0.5 mm
(24 AWG)
400 pair
0.5 mm
(24 AWG)
600 pair
0.5 mm
(24 AWG)
900 pair
0.5 mm
(24 AWG)
1200 pair
0.5 mm
(24 AWG)
2400 pair
0.4 mm
(24 AWG)
3M™ Scotchlok™
Connectors UR
(w/ 3" pigtails)
25 pair
0.6 mm
(22 AWG)
50 pair
0.6 mm
(22 AWG)
100 pair
0.6 mm
(22 AWG)
200 pair
0.6 mm
(22 AWG)
300 pair
0.6 mm
(22 AWG)
400 pair
0.6 mm
(22 AWG)
600 pair
0.6 mm
(22 AWG)
900 pair
0.6 mm
(22 AWG)
Kit for 3M™ Better Buried Closure
3M™ Better Buried Closure Kit Concept
All Better Buried closures are packaged in a kit to create a “one number” ordering system, which helps reduce
inventory maintenance and helps reduce the chance of ordering incorrect components. For special applications,
components can be orderedseparately.
3M™ Better Buried Closures Kit Components
Kit Components
B.B. SB/2SC
2"–5"
(50-127 mm)
B.B. SB/SC, DC
2"–5"
(50-127 mm)
B.B. SB/2DC
6"–9"
(152-229 mm)
B.B. SB/DC, TC
7"–9"
(178-229 mm)
B.B. Sleeve Kit
2"–9"
(50-229 mm)
Closure body 1 1 1 1 1
End cap, single (SC) 2 1
End cap, multiple (DC) (TC) 1 2 2
Spacer web (SW) 11111
Strain relief bar (SB) 1 or 2 1 or 2 2 2
Hose clamps, closure 3 3 3 3 3
Hose clamps, strain bar 2 2 2 2
Funnel 1 1 1 1 1
Snap-in cap 2 2 2 2 2
Locking "H" 2 3 or 4 4 5
Foam strips 1 1 1 1
3M™ Better Buried Closure Kits with 3M™ High Gel Re-enterable
Encapsulant 8882
Better Buried Series closure kits with 8882 High Gel are available in ve sizes that contain all* the components
needed to complete the installation process.
*except modules, which can be ordered separately
Product Number Description 3M Stock Number Min. Order
BB2×12/8882/High Gel 2" diameter by 12" closure length
Splice capacity: 25-pair 3M™ Scotchlok™ Connector;
50-pair 3M™MS2™ Splicing Module
2" end cap; one port in, two ports out
80-6111-4782-0 1 kit
BB2×24/8882/High Gel 2" diameter by 24" closure length
Splice capacity: 50-pair 3M™ Scotchlok™ Connector;
100-pair 3M™MS2™ Splicing Module
2" end cap; one port in, two ports out
80-6111-4783-8 1 kit
BB3×24/8882/High Gel 3" diameter by 24" closure length
Splice capacity: 100-pair 3M™ Scotchlok™ Connector;
200-pair 3M™MS2™ Splicing Module
3" end cap; one port in, two ports out
80-6111-4784-6 1 kit
BB4×24/8882/High Gel 4" diameter by 24" closure length
Splice capacity: 200-pair 3M™ Scotchlok™ Connector;
400-pair 3M™MS2™ Splicing Module
4" end cap; one port in, two ports out
80-6111-4785-3 1 kit
BB5×26/8882/High Gel 5" diameter by 26" closure length
Splice capacity: 300-pair 3M™ Scotchlok™ Connector;
600-pair 3M™MS2™ Splicing Module
5" end cap; one port in, two ports out
80-6111-4786-1 1 kit
Ordering Information
3M and Scotchlok are trademark of 3M Company.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information believed to be reliable, but the
accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application.
You assume all risks and liability associated with such use. Any statements related to the product which are not contained in 3M’s current publications,
or any contrary statements contained on your purchase order shall have no force or eect unless expressly agreed upon, in writing, by an authorized
ocer of 3M.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture for a period of 12 months from the time of purchase. 3M MAKES NO OTHER
WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product
or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any loss or damage arising from this 3M
product, whether indirect, special, incidental or consequential regardless of the legal theory asserted.
3M™ Better Buried Closure Kits with 3M™ High Gel Re-enterable
Encapsulant 8882 include the following materials:
• 3M™ Scotchlok™ Shield Bond Connectors
• 3M™ Better Buried Sleeve Kits (Closure Extension)
• 8882 High Gel Encapsulating Compound (re-enterable)
• Hose clamps
• Scotch® Vinyl Tape 88T
• 3M™ Scotchcast™ Spacer Web 4430 (for re-entry only)
• DR Tape
• Sheath scu material
• Scotch® Linerless Rubber Splicing Tape 130C
• 3M™ Scotchcast™ Pair Saver 4458 or 4458W
• Scotch® Rubber Splicing Tape 23
• 3M™ Scotchcast™ Strain Relief Bar Kits 4465 or 4465-L
• B Sealing Tape
• Bonding braid
• 3M™ Better Buried End Caps (bulk) 1 port and 2 ports (1 in and 2 out)
• Funnel
• Closure body
Communication Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000 USA
Phone 1-800-426-8688
Fax 1-800-626-0329
Web 3M.com/Telecom
Please recycle. Printed in USA © 3M 2015.
All rights reserved. 80-6113-2880-2