3M Scotchlok
Copper Compression Lugs,
30000 and 31000 Series
Data Sheet October 2018
Description 3M Scotchlok Copper Compression Lugs are one-piece, seamless copper and are
designed to cover a wide range of conductor sizes. They are available in one-hole,
standard-barrel and one-hole and two-hole long-barrel versions:
Scotchlok lug 30000 Series are one-hole, standard-barrel length lugs and are
designed to cover conductor sizes from 6 AWG through 4/0 AWG.
The Scotchlok lug 31000 Series consists of:
o one-hole, long-barrel length lugs designed to cover conductor sizes from 2/0
AWG through 600 kcmil (MCM) and,
o two-hole, long-barrel length lugs designed to cover conductor sizes from 4/0
AWG through 1000 kcmil (MCM)
They are designed to terminate copper conductors. Each lug is electro-tin plated to
resist electrolytic corrosion. The lugs are installed using standard industry tooling.
Chamfered ends ensure simplicity and ease of conductor insertion.
Agency Approvals UL Listed, UL Standard 486A-486B, File No. E23438
and Self Certifications
CSA Certified, File No. 015503
Features Simple installation using readily available tools
Manufactured using tin-plated copper
Color coded printing for easy lug identification
The center-of-hole to center-of-hole spacing of the mounting holes meets the
__NEMA Standard of 1.75" (44,5 mm)
Applications One-Hole, Standard-Barrel: To terminate copper conductors from 6 AWG through
4/0 AWG
One-Hole, Long-Barrel: To terminate copper conductors from 2/0 AWG through
600 kcmil (MCM)
Two-Hole, Long-Barrel: To terminate copper conductors from 4/0 AWG through
1000 kcmil (MCM)
For low and medium voltage up to 35 kV
For indoor and outdoor use
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3M Scotchlok Copper Compression Lugs, 30000 and 31000 Series
One-Hole, Standard-Barrel Lug Dimensions and Selection Guide
[Dimensions in Inches and (Millimeters)]
NOTE: All listed lugs in this table are UL Listed and CSA Certified
W, Pad C, Center
3M O.D., L, B, Barrel P, Pad
Lug Size Stud Color I.D., +/- Width, of Hole-to-
Scotchlok +/- Length, Length, Length,
AWG Size Code .010 +/- End of Pad,
Lug Number .010 +/- .10 +/- .060 +/- .060
.060 +/- .030
#10 .196 .290 1.78 .435
30014 6
AWG Blue .86 (21,8) .75 (19,1) .375 (9,53)
5) (5,0) (7,37) (45,2) (11,0)
1/4 .196 .290 1.78 .435
30015 6 AWG Blue .86 (21,8) .75 (19,1) .375 (9,53)
(6) (5,0) (7,37) (45,2) (11,0)
5/16 .196 .290 1.78 .50
30016 6 AWG Blue .86 (21,8) .75 (19,1) .375 (9,53)
(8) (5,0) (7,37) (45,2) (12,7)
#10 .247 .340 1.94 .485
30018 4 AWG Gray .75 (19,1) .89 (22,6) .375 (9,53)
(5) (6,3) (8,64) (49,3) (12,3)
1/4 .247 .340 1.94 .485
30019 4 AWG Gray .75 (19,1) .89 (22,6) .375 (9,53)
(6) (6,3) (8,64) (49,3) (12,3)
3/8 .247 .340 1.94 .59
30021 4 AWG Gray .75 (19,1) .89 (22,6) .375 (9,53)
(10) (6,3) (8,64) (49,3) (15,1)
1/4 .307 .416 1.97 .63
30022 2 AWG Brown .81 (20,7) .89 (22,6) .375 (9,53)
(6) (7,8) (10,57) (50,0) (15,9)
5/16 .307 .416 1.97 .63
30023 2 AWG Brown .81 (20,7) .89 (22,6) .375 (9,53)
(8) (7,8) (10,57) (50,0) (15,9)
3/8 .307 .416 1.97 .63
30024 2 AWG Brown .81 (20,7) .89 (22,6) .375 (9,53)
(10) (7,8) (10,57) (50,0) (15,9)
5/16 .358 .462 1.97 .69
30027 1 AWG Green .81 (20,7) .75 (19,1) .375 (9,53)
(8) (9,1) (11,7) (50,0) (17,5)
3/8 .358 .462 1.97 .69
30028 1 AWG Green .81 (20,7) .75 (19,1) .375 (9,53)
(10) (9,1) (11,7) (50,0) (17,5)
5/16 .394 .512 2.16 .75
30031 1/0 AWG Pink .81 (20,7) .89 (22,6) .375 (9,53)
(8) (10,0) (13,0) (54,9) (19,1)
3/8 .394 .512 2.16 .75
30032 1/0 AWG Pink .81 (20,7) .89 (22,6) .375 (9,53)
(10) (10,0) (13,0) (54,9) (19,1)
3/8 .439 .560 2.37 .81
30036 2/0 AWG Black .87 (22,2) 1.11 (28,2) .375 (9,53)
(10) (11,2) (14,2) (60,2) (20,7)
1/2 .490 .617 2.63 .91
30041 3/0 AWG Orange .94 (23,8) 1.11 (28,2) .531 (13,5)
(12) (12,4) (15,7) (66,8) (23,0)
1/2 .548 .687 2.60 1.00
30045 4/0 AWG Purple .97 (24,6) 1.11 (28,2) .531 (13,5)
(12) (13,9) (17,4) (65,9) (25,4)
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