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
✔RoHS directive 10 substances
Applications
■ Insulation, protection and reinforcement of irregularshaped substrates
■ Color identification and bundling for electric wires
Basic Properties
| Category | Heat shrink 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
| 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
Sizes
