SUMITUBE™ B2 (3X)

CatalogNo.826

[High shrink ratio flame-retarded heat-shrinkable tubing]
UL/CSA recognized

■ High shrink ratio
■ UL/CSA recognized
■ Flame-retarded (PBDE/PBB-free)
■ Bright colors

  • UL
  • CSA
  • moisture resistance Single
  • Flame Retarded

Applications

  • ■ Insulation, protection and reinforcement of irregularshaped substrates
    ■ Color identification and bundling for electric wires

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Basic Properties

Category Heat-shrinkable tubing
Material Irradiated cross-linked flexible flame-retarded polyolefin
Flammability Flame Retarded
Shrink temperature min. 90℃
Shrink ratio min. 66%
Longitudinal change min. -15%
Continuous operating temperature -55 to 135℃
Specifications/Approvals UL224
  File No. E48762 Catalog No. SUMITUBE™ B2 or 826
  Rating temperature: 125℃ Rating voltage: 600V
  Flammability: VW-1
CSA C22.2 No. 198.1
  File No. LR33298 Rating temperature: 125℃
  Rating voltage: 600V Flammability: VW-1
Marking on Surface
Available colors Black, Brown, Red, Orange, Yellow, Green, Blue, Purple, Gray, White
Flexibility Flexible
Environmental Compliance RoHS,ELV
Industry Automotive,Construction machinery,Industrial machinery,Electronics

Oil/Chemical resistance (room temperature)

Gasoline Gas oil Lubricant Alcohol Acid Alkali

:Very good :Good :Not applicable in some cases

Features

Properties Items Requirements Typical values*
Mechanical Tensile strength      (before aging)
Tensile strength      (after aging)
Elongation                (before aging)
Elongation                (after aging)
Heat shock
Cold bend
min. 10.4MPa
158℃ x 7 days, min. 7.3MPa
min. 200%
158℃ x 7 days, min. 100%
250℃ x 4 hours, no crack
-30℃ x 1 hour, no crack
12.1MPa
12.5MPa
440%
450%
Pass
Pass
Electrical Dielectric withstand      (before aging)
Dielectric withstand      (after aging)
Dielectric breakdown    (before aging)
Dielectric breakdown    (after aging)
Volume resistivity
AC2.5kV x 60 sec., no breakdown
158℃ x 7 days, AC2.5kV x 60 sec., no breakdown
min. AC2.5kV
158℃ x 7 days, min. 50% of original and min. AC2.5kV
min. 1.0 x 1014Ω・cm
Pass
Pass
24.8kV
Pass
5.8 x 1014Ω・cm
Chemical Corrosion against bare copper

Stability against copper

Flammability
158℃ x 7 days, no corrosion after leaving
under 95% humidity, 23℃ x 24 hours
158℃ x 7 days, elongation min. 100%
after leaving under 95% humidity, 23℃ x 24 hours
Flame-retarded, pass VW-1

Pass

405%
Pass

* For reference use only

Sizes

Nominal size(mm) Supplied ID(mm) Recovered ID(mm) Unit length(min.)(m)
Inside diameter(min.) Wall thickness(nom.) Inside diameter(max.) Wall thickness(nom.)
1.5/0.5 1.50 0.20 0.50 0.50 305
3/1 3.00 0.25 1.00 0.60 152.5
6/2 6.0 0.25 2.00 0.70 61
9/3 9.0 0.30 3.00 0.80 61
12/4 12.0 0.30 4.00 0.85 61
18/6 18.0 0.35 6.00 1.00 61
24/8 24.0 0.40 8.0 1.20 61
40/13 40.0 0.40 13.0 1.25 61
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