Copper Flat Square Busbars With PVC Heat-Shrink
Copper flat square busbars with PVC heat-shrink tubing are rigid busbar assemblies featuring a highly conductive flat square copper conductor protected by an outer layer of PVC heat-shrink insulation. Combining the excellent current-carrying capacity and stable mechanical strength of copper busbars with the superior insulation and protective properties of PVC heat-shrink material, these products are widely used in high-reliability power transmission applications—such as UPS systems, power distribution cabinets, industrial control equipment, server power systems, and new energy electrical equipment. Compared to traditional bare copper busbars, this type utilizes an external insulating sleeve to create a continuous protective layer; this minimizes the risks of accidental contact, short circuits, and installation-related hazards while maintaining the copper conductor's low-impedance, high-efficiency transmission capabilities.
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Product Introduction
A copper busbar encased in orange heat-shrink tubing features an integrated structure combining a conductor with protective insulation. The copper busbar ensures efficient current transmission, while the orange heat-shrink tubing forms a tightly fitted insulating layer that also provides mechanical protection and visual identification. The high-visibility orange color enables rapid on-site identification of live components, reducing the risk of operational errors.
Key features include:
The conductor and insulation layer are tightly bonded, eliminating the risk of partial discharge caused by looseness or gaps.
Upon heating, the heat-shrink tubing contracts to uniformly encase the copper busbar surface, creating a continuous, bubble-free insulating layer.
The integrated structure is suitable for use as a rigid connection, serving as a direct replacement for traditional bare busbars or connection methods requiring separate insulation treatment.
The appearance is neat and uniform, facilitating standardized installation as well as subsequent maintenance and inspections.
High Voltage Heat Shrink Sleeve Insulated Copper Bus Bars Design Advantage: Putting "Busbar Design" Back in the Hands of Engineers
Standardized Cross-Sections
Offers a library of common rectangular cross-section specifications with transparent current-carrying parameters, providing a reliable basis for design and selection;
Flexible Insulation Definition
Supports versatile insulation strategies-such as full encapsulation, partial coverage, or leaving terminal ends bare-allowing a single drawing to clearly indicate bare copper at contact surfaces and insulation along intermediate sections;
Space-Efficient Layout
The flat, rectangular profile facilitates flush, stacked mounting; when paired with insulation sleeves, it ensures precise electrical clearances, enabling more compact cabinet designs;
Cost-Effective Customization (No Molds Required)
Design modifications are achieved simply by adjusting bending programs and sleeve specifications, ensuring rapid turnaround for prototypes and small-batch orders without the costs or lead times associated with mold tooling.
Application Scenarios for Customized Heat Shrink Tubes for Copper Busbars
| Scenario | Product Value Proposition |
| Low-voltage distribution cabinets/switchgear | Phase-to-phase insulation and color coding simplify internal cabinet layout |
| New energy storage cabinets | Rigid DC circuit connections; protective coating withstands the battery compartment environment |
| Telecom power supplies/UPS | Flat cross-section suits compact cabinet layouts |
| Industrial control cabinets | "Install-ready" delivery reduces total cabinet assembly time |
| Exported complete equipment | Eco-compliant materials and serialized component management meet overseas acceptance requirements |
Frequently Asked Questions for Heat Shrink Tube Copper Insulated Busbar
Q1: What are the characteristics of PVC heat-shrink tubing compared to other heat-shrink materials?
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A: PVC heat-shrink tubing offers good processability and reliable basic insulation, making it suitable for most low-voltage rigid connection applications. Specific selection should be based on operating temperatures and environmental conditions.
Q2: What are the practical benefits of a flat, rectangular cross-section during installation?
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A: The flat structure requires less vertical clearance and provides a larger contact surface area, facilitating stacking and bolting; this helps improve space utilization and contact stability.
Q3: Is customization of cross-sectional dimensions, lengths, and hole positions based on drawings supported?
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A: Yes. Both the copper busbar forming and the heat-shrink coating can be adjusted according to customer drawings to meet specific cabinet and connection requirements.
Q4: Is the heat-shrink layer prone to loosening during operation?
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A: Provided that the tubing specifications are correctly matched and the shrinking process is properly controlled, the PVC layer forms a tight wrap around the copper busbar, maintaining stability under normal operating conditions.
Q5: What are the typical application environments?
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A: It is primarily used for low-voltage power distribution cabinets, compact switchgear, new energy busbar systems, and internal rigid connections in industrial equipment; specific suitability should be confirmed based on system parameters.
Contact us
If your UPS, power distribution system, or industrial electrical equipment requires a custom flat, rectangular Insulated Heat Shrink Copper Connector Busbars solution that balances high electrical conductivity, a compact design, and reliable insulation protection, Apollo can provide professional design support and stable mass production services tailored to your engineering drawings and application environment.
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