800V Busbar Heat-Shrink Tubing for High-Voltage Platforms
Rated wall and recovery for 800V EV and energy-storage busbars. 800V platforms need insulation that holds wall after recovery and resists tracking under humidity. We build the sleeve with a voltage-rated wall and V-0 behavior for the 800V duty. We match shrink ratio, recovered wall and color to your busbar stack and assembly process. Yes. We specify recovered wall to the voltage class so insulatio
Rated wall and recovery for 800V EV and energy-storage busbars. 800V platforms need insulation that holds wall after recovery and resists tracking under humidity. We build the sleeve with a voltage-rated wall and V-0 behavior for the 800V duty. We match shrink ratio, recovered wall and color to your busbar stack and assembly process. Yes. We specify recovered wall to the voltage class so insulatio
Technical specifications
| Voltage | 800V platform rated |
| Wall | Voltage-rated, stable after recovery |
| Flame | UL 94 V-0 |
| Shrink ratio | 2:1 / 3:1 / 4:1 |
💾 Datasheets & Test Reports
Download the technical data sheet for this product (PDF).
Applications by industry
- 800V EV and hybrid battery busbar phase insulation
- Inverter-to-motor HV cable busbar protection
- ESS pack DC busbar sleeve insulation
- High-voltage junction box busbar covering
- Automotive traction busbar creepage management
- Heat-shrink phase separation on 800V DC busbars
Why crosslinked polyolefin / EPDM for this application
At 800V DC the creepage and partial-discharge margins are tight, so the sleeve must be crosslinked, sized to the bar and thin to clear tight pack geometry while fully isolating the conductor edges.
Confirm DC voltage rating and wall for 800V pad — do not reuse LV polyolefin shrink. Check that corner edges of the busbar are free of burrs that can pierce the wall.
Standards: UL 224 / ISO 6722 (HV cable), IEC 62631 (dielectric).
Feature and remaining-wall review
Cut to length before installation; dual-wall adhesive lined requires controlled heat profile for proper flow. Review feature depth, edge distance and remaining wall against critical geometries. Capability is confirmed on your drawing, not from a blanket tolerance.
Inspection and traceability
We state the control plan with you. Batch traceability links raw material lot to finished part.
- First-article inspection (FAI) per your plan
- In-process dimensional checks at every station
- Batch certificate of conformance (COA) supplied on request
- Lot traceability to incoming material certificate
- Dielectric strength and insulation resistance testing available on request
Related components
Heat-Shrink Busbar Sleeve
Related insulation component from the WELLELE catalog.
ESS Busbar Insulation Sleeve
Related insulation component from the WELLELE catalog.
Power Cable Heat-Shrink Tubing
Related insulation component from the WELLELE catalog.
Common questions
What recovery temperature is needed?
Standard polyolefin recovers at 90–135 °C. PTFE at 300–400 °C. Match the recovery temperature to your assembly heat profile.
Is it RoHS and REACH compliant?
Yes. All standard grades comply with RoHS 2011/65/EU and REACH 1907/2006. Certificates supplied per batch.
Can heat-shrink be printed?
Yes — identification bands, logos and warnings printed before or after shrink. Ask for print area and ink compatibility.
What wire sizes does it fit?
ID from 0.2 mm to 200 mm flat wall, 3 mm to 300 mm dual-wall. Refer to the sizing chart on the product page.
Does the wall stay after recovery?
ID from 0.2 mm to 200 mm flat wall, 3 mm to 300 mm dual-wall. Refer to the sizing chart on the product page.
Engineering Guides & Selection Notes
Related technical articles that help specify this product.
Get pricing for 800V Busbar Heat-Shrink Tubing for High-Voltage Platforms
Attach the drawing with annual volume. We check the material against your duty and tolerance, verify ID / OD / wall / features, and respond with manufacturability notes and pricing.