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Ģ Cold Shrink QT-III Terminations

3M™ Cold Shrink QT-III 7640-T & 7650-T Series Termination Kit includes a non-skirted, 1-piece termination. It ensures
a pliable, tight seal for jacketed concentric neutral and concentric neutral power cables. The conjunction of high
dielectric-constant material and silicone rubber insulation allows the termination to withstand voltages of 5 to 35kV.

• Provides a void-free seal to jacketed concentric neutral and concentric neutral power cables
• High dielectric-constant material regulates the distribution of electric field stress
• Suitable for indoor applications
• Termination has 0.64 to 1.08-in insulation 0.0.
• Accommodates wire sizes of 4/0 AWG to 400 kcmil at 5kV, 3/0 AWG to 300 kcmil at 8 kV, 2 to 2/0 AWG at 15kV
• Non-tracking, silicone rubber insulation offers durability
• Withstands voltages of 5 to 35kV and is 110 kV BIL-rated
• Includes a non-skirted, 1-piece, cold shrink termination
• IEEE Standard 48 Class 1 Approved for indoor and weather-protected applications

7640-T Series (Indoor)

Silicone Rubber Indoor Tubular Termination Kits with High-K Stress Relief

for Jacketed Concentric Neutral (JCN) Cable and Concentric Neutral (CN) Cable

7642-T-110, 7642-T-11 O(L), 7643-T-11 0, 7644-T-11 0, 7645-T-11 0, 7645-T-11 O(L),

7646-T-110

For Use With Compression Lugs or Connectors

Kit N b Primary Insulation J k 0DR Conductor Size Range (AWG & kcmil)
um er O.D. Range
ac et . . ange 5 kV 8 kV 15 kV

7642-T-110 0.64" -1 .0S" 0.97" -1 .4S" 4/0 - 400 3/0 - 300 2 -210
7643-T-110 (16,3 - 27,4 mm) (24,6 - 37,6 mm) 300 - 500 250 - 500 (35 - 70 mm~
7644-T-110 500 - 750 350 - 700
7645-T-110 0.72" - 1.29" 1.04" -1 .60" 700 -1500 600 -1250 2/0 - 300
7646-T-110 (lS,3 - 32,S mm) (26,4 - 40,6 mm) 1750 - 2000 1500 - 2000 (70 -150 mm')

0.S3"-1 .53 " 1.12" -1.S7" 4/0 - 500
(21 ,1 - 3S,9 mm) (28,4 - 47,5 mm) (120 - 240 mm ~

1.05" -1.S0" 1.39" - 2.40" 500 -1000
(26,7 - 45,7 mm) (35,3 - 61 ,0 mm) (240 - 500 mm ~

1.53" - 2.32 " 1.S4" - 2.S0" 1250 - 2000
(3S,9 - 5S,9 mm) (46,7 - 71 ,1 mm) (625 -1000 mm~

Table 1

For Use With 3MTM Mechanical Shearbolt Lugs Ql2 Series: Two Hole

Kit Number Primary Insulation Jacket 0.0. Range Conductor Size Range 3MTM Mechanical l U uJ
7642-T-ll0(L) 0.0. Range (AWG & kcmil) Shearbolt Lugs
7643-T-110 0.97" -l.4S" 15 kV
7644-T- 110 0.69" -1 .22" (24,6 - 37,7 mm) Ql2 Series: Two Hole
7645-T-l10 (17,5 - 31,0 mm) 1/0 - 4/0
7645-T- l10 1.04" -1 .60 " (60-120 mm~ Part Number
7645-T-11 O(L) 0.72" -1 .29" (26,4 - 40,6 mm)
7646-T- l10 (lS,3 - 32,S mm) 210- 250 QL2-A-2-250
1.12" - 1.S7 " (70-150 mm~
0.S3" - 1.53" (2S,4- 47,5 mm) Ql2-A-2-250
(21 ,1 - 3S,9 mm) 4/0 - 350
1.39 " - 2.40 " (120 - 150 mm ~ Ql2- A-l/D-350
l05" -1 .S0" (35,2 - 61,0 mm)
(26,7 - 45,7 mm) 500 Ql2-A-4/D-600
1.39 " - 2.40 "
l05" - 1.S0" (35,2- 61,0 mm) (240mm ~ Ql2-A- 35D-750
(26,7 - 45,7 mm)
1.39" - 2.40" 500 - 750 Ql2-A-50D-l 000
1.15" -1 .9S" (35,2- 61,0 mm) (240 - 325 mm ~
(29,2 - 50,3 mm) Ql2- A-l00D-1250
1.S4 " - 2.S0 " 750-1000
l53" - 2.32" (46,7 - 71,1 mm) (400 - 500 mm')
(3S,9 - 5S,9 mm)
Table 2 1250

(625mm ~

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