PVC Heat Shrink Sleeve for Bus Bar
Premium Busbar Insulation Sleeves
High-quality PVC Heat Shrink Tubing for Busbars designed to insulate up to 36kV, prevent flashover, improve phase identification and protect against corrosion in switchgear and electrical panels.
Before & After Shrinking
What is PVC Heat Shrink Sleeve for Bus Bar?
PVC Heat Shrink Sleeve for Bus Bar (also called busbar insulation tubing or busbar heat shrink sleeve) is a flexible, lay-flat PVC tubing that shrinks tightly when heated (90–125°C). It forms a seamless, protective insulating layer around copper or aluminum busbars, eliminating air gaps and preventing accidental contact.
Designed specifically for electrical panels and switchgear, our sleeves offer excellent electrical insulation, mechanical protection, and phase identification through color coding (Red, Yellow, Blue, Black, Green).
Key Features of Our PVC Heat Shrink Tubing for Busbar
- Shrink ratio 2:1 (40–50% transversal)
- Voltage rating up to 36kV
- Dielectric strength >20 kV/mm
- Operating temperature -40°C to +105°C / +110°C
- Shrink temperature 90–125°C
- Wall thickness 150–350 micron
- Flame retardant UL-94 V-1, halogen-free options available
- Glossy finish — Phase colors: R, Y, B, Black, Green
- Chemical & UV resistant — Acids, alkalis, tracking
- Available in continuous rolls or cut lengths — any size
Technical Specifications
| Material | High-grade PVC / Cross-linked Polyolefin |
| Shrink Ratio | 2:1 (40–50% transversal) |
| Shrink Temperature | 90–125°C |
| Operating Temperature | -40°C to +105°C / +110°C |
| Dielectric Strength | 20–23 kV/mm (min) |
| Volume Resistivity | 10¹³ – 10¹⁵ Ohm.cm |
| Tensile Strength | 9–11 N/mm² (min) |
| Flame Retardancy | UL-94 V-1 / Self-extinguishing |
| Colors | Red, Yellow, Blue, Black, Green |
| Voltage Rating | Up to 36kV (thin / medium / heavy wall) |
| Standard Roll Length | 50m / 25m / 20m |
Bus Bar Size Compatibility Chart (Most Popular Sizes)
| Sleeve Size (Flat Width) | Suitable Bus Bar Sizes (mm) | Recommended For |
|---|---|---|
| 20mm | 12×3, 9×6, 10×3 | Small Panels |
| 25mm | 15×3, 12×6, 12×9, 20×3 | LT Panels |
| 30mm | 16×6, 19×6, 20×6 | Distribution Boards |
| 35mm | 20×6, 25×3 | Control Panels |
| 41mm | 25×6, 25×10, 25×12 | Switchgear |
| 48mm | 25×12, 30×6, 30×10 | HT Panels |
| 55mm | 30×12, 38×6 | Power Distribution |
| 61mm | 38×9, 38×12, 40×6, 40×10 | Industrial Panels |
| 73mm | 50×6 | Medium Voltage |
| 81mm – 290mm | Up to 250×15 (full chart available on request) | Heavy-Duty Applications |
Custom sizes available from 17mm to 290mm flat width. Contact us for the complete size chart.
Benefits of PVC Heat Shrink Sleeve for Bus Bar Insulation
- Prevents short circuits and accidental flashover
- Reduces air clearance between phases (saves space & cost)
- Protects against chemical corrosion, dust, moisture
- Enhances operator safety in live panels
- Provides clear phase identification (R-Y-B color coding)
- Fast & easy installation – saves labor time
- Long service life with excellent aging & UV resistance
- Cost-effective alternative to epoxy coating or heat-shrink tape
Applications of PVC Heat Shrink Sleeve for Busbar
- Low & Medium Voltage Switchgear
- Control Panels & Distribution Boards
- Bus Duct Systems
- Power Transformers & Generators
- Solar & Wind Energy Inverters
- Railway Electrification
- Industrial Automation Panels
- Data Center Power Distribution
How to Apply PVC Heat Shrink Sleeve on Bus Bar (Step-by-Step)
- Measure busbar dimensions and select the correct sleeve size.
- Clean the busbar surface thoroughly.
- Slide the sleeve over the busbar (use lubricant if needed for long runs).
- Apply heat evenly using a heat gun (120–150°C) or oven – start from one end.
- Allow cooling for 5–10 minutes.
- Inspect for wrinkles or air pockets.
Installation Guide Video
💡 Pro Tip: For bent busbars, use medium/heavy wall sleeves for better conformity.
Why Choose Us as Your PVC Heat Shrink Sleeve Manufacturers & Suppliers?
In-house manufacturing with Belgian/European raw materials
UL & IEC compliant
Custom sizes & colors in 3–5 days
Competitive wholesale pricing with bulk discounts
PAN India & export supply (UAE, Saudi Arabia, Africa)
Technical support & free samples for OEMs
100% quality tested before dispatch
Minimum 2 years shelf life
Standard Phase Color Options
What Our Customers Say
"Best quality PVC heat shrink sleeves for our 33kV panels – perfect fit and excellent insulation."
– Leading Switchgear Manufacturer, Gujarat"Fast delivery and accurate sizing chart helped us complete the project on time."
– Panel Builder, MaharashtraFrequently Asked Questions (FAQs)
Up to 36kV depending on wall thickness (thin wall up to 3.3kV, heavy wall up to 36kV).
90–125°C. A standard heat gun is sufficient for proper shrinking.
Yes, custom sizes are available from 17mm to 290mm flat width.
Yes, the sleeves are self-extinguishing and comply with UL-94 V-1 flame retardancy standards.
Yes, PVC heat shrink sleeves are suitable for both aluminum and copper busbars.
PVC sleeves are more economical and have a glossy finish, while polyolefin sleeves offer higher flexibility and better performance for higher voltage applications.
Yes, we regularly export to the Middle East, Africa, and Southeast Asia.
The minimum shelf life is 2 years when stored in a cool and dry place.
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