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Flame-Retardant Heat-Shrinkable Busbar Sleeves UL 224 VW-1 Rated
Product Spotlights
UL 224 VW-1 certified flame-retardant heat-shrink sleeves provide safe, durable insulation for busbars. Features easy installation via heat shrinking, excellent dielectric strength, broad temperature tolerance (-55°C to 125°C), and resistance to environmental factors. Ideal for enhancing safety compliance and long-term reliability in electrical panels and industrial equipment.
US$ 33 - 43
MOQ: 10 Meters
Key Specifications
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Application:
Other, Busbar insulation
Material:
Cross-linked polyolefin
Flame Rating:
UL 224 VW-1 compliant
Payment & Shipping
Payment Methods:
Port of Shipment:
China
Delivery Detail:
5 days
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Application
Other, Busbar insulation
Material
Cross-linked polyolefin
Flame Rating
UL 224 VW-1 compliant
Shrink Ratio
Approximately 2:1
Operating Temperature
-55°C to 125°C
Color
Black (standard), other colors optional
Certification
ISO9001 manufacturing system
Length
Customizable, standard rolls available
Wall Thickness
Available in various grades
As a specialized manufacturer of electrical insulation solutions, Jinhua Dika Electrical Equipment Co., Ltd. leverages its ISO9001-certified production system to deliver reliable, high-performance components for global markets. Our Flame-Retardant Heat-Shrinkable Busbar Sleeves, rated UL 224 VW-1, represent a core product engineered for safety and durability in demanding electrical applications. These sleeves provide a critical layer of insulation and physical protection for busbars and other conductive elements, mitigating risks associated with short circuits, arc flashes, and environmental degradation. Designed for ease of installation and long-term performance, they are a trusted solution for OEMs, panel builders, and maintenance teams across industries.
This product description details the features, benefits, and technical specifications of our UL 224 VW-1 rated busbar sleeves, illustrating why they are a preferred choice for professionals seeking compliant and robust insulation.
Core Product Features & Technical Advantages:
- UL 224 VW-1 Flame Retardancy: The sleeve material meets the stringent UL 224 VW-1 standard for flame retardancy. This means it self-extinguishes rapidly after exposure to a flame source, significantly reducing the risk of fire propagation within electrical assemblies.
- Heat-Shrinkable Technology: Utilizing a cross-linked polyolefin base, the sleeve shrinks uniformly when heated (typically with a heat gun), conforming tightly to the busbar's profile. This creates a seamless, moisture-resistant, and mechanically robust insulating jacket.
- Excellent Dielectric Insulation: The material provides high dielectric strength, effectively isolating the busbar and preventing accidental contact or short circuits with adjacent components or enclosures.
- Broad Temperature Tolerance: Engineered to perform reliably in environments ranging from -55°C to 125°C, these sleeves maintain their insulating properties and physical integrity under both extreme cold and operational heat.
- Environmental & Chemical Resistance: The sleeves offer resistance to many oils, solvents, acids, and alkalis, protecting the busbar from corrosive industrial atmospheres. They also provide good UV resistance for applications with exposure to sunlight.
- Mechanical Protection: Beyond insulation, the shrunk sleeve acts as an abrasion-resistant layer, shielding the busbar from physical damage, vibration, and wear over time.
- Standard & Customizable Options: Available in standard black and other colors for phase identification or aesthetic purposes. Lengths, wall thicknesses, and inner diameters before shrinking can be customized to fit specific project requirements.
Key Benefits for Your Application:
- Enhanced Safety Compliance: Using UL-recognized components helps projects meet regional electrical safety codes and standards, particularly in markets like North America.
- Simplified Installation: The heat-shrink process is quick and requires minimal specialized tools, reducing labor time compared to traditional taping or potting methods.
- Long-Term Reliability: The sealed insulation prevents dust ingress and moisture accumulation, which are common causes of insulation failure and corrosion, leading to extended system lifespan.
- Design Flexibility: The ability to shrink onto complex shapes (like joints or bends) provides design engineers with more flexibility than rigid insulation solutions.
- Cost-Effective Maintenance: For retrofit or repair work, these sleeves offer a clean, professional, and durable solution that minimizes future maintenance needs.
Typical Technical Specifications:
| Parameter | Typical Value / Description |
|---|---|
| Base Material | Cross-linked polyolefin |
| Flame Retardant Standard | UL 224 VW-1 |
| Shrink Ratio | Approximately 2:1 (shrinks to roughly half its original diameter) |
| Continuous Operating Temperature Range | -55°C to +125°C |
| Dielectric Strength | High (specific values depend on wall thickness) |
| Standard Color | Black |
| Tensile Strength | Good, providing mechanical durability |
| Common Applications | Power distribution busbars, switchgear, control panel wiring, battery connections, industrial machinery power rails |
Selection & Installation Guidance:
- Sizing: Select a sleeve with a pre-shrunk inner diameter slightly larger than the busbar's outer dimension. The 2:1 shrink ratio ensures a tight fit after heating.
- Heating Tool: Use a commercial heat gun with adjustable temperature. Avoid open flames or excessive heat that could damage the material.
- Process: Slide the sleeve onto the busbar, ensure it is positioned correctly, and apply heat evenly along its length until it shrinks uniformly and smoothly.
- Quality Check: After shrinking, the sleeve should be tight, without bubbles or gaps, and fully cover the intended area.
Jinhua Dika Electrical Equipment Co., Ltd. supports a global clientele from North America to Southeast Asia and Europe, exporting through major Chinese ports. Our manufacturing focus on electrical insulation products, backed by an ISO9001 quality management system, ensures consistent product performance. The Flame-Retardant Heat-Shrinkable Busbar Sleeve is a product of this rigorous approach, designed to deliver the safety, reliability, and ease of use that modern electrical systems demand. For OEMs integrating safety-critical components, for panel builders requiring compliant materials, or for maintenance teams needing durable solutions, this product offers a proven answer. We invite you to contact us to discuss your specific requirements, request samples, or learn more about our full range of electrical insulation products.
Frequently Asked Questions (FAQ):
-
Q: What does the UL 224 VW-1 rating mean for this sleeve?
A: The UL 224 VW-1 rating is a specific flame test standard for insulating sleeving. It indicates that the material, when vertically mounted and exposed to a flame, will self-extinguish within a specified time after the flame is removed and will not drip flaming particles. This is a key safety requirement for many electrical applications. -
Q: Can this sleeve be used on copper and aluminum busbars?
A: Yes, it is suitable for insulating both copper and aluminum busbars, as well as other metal conductors. The material is chemically compatible with these metals. -
Q: What is the typical shelf life or longevity of the installed sleeve?
A: The material is stable and, when properly installed, can last for decades under normal operating conditions within its specified temperature range. Its resistance to environmental factors contributes to its long lifespan. -
Q: Are there different wall thicknesses available?
A: Yes, we offer sleeves with varying wall thicknesses to provide different levels of mechanical protection and dielectric strength. The optimal thickness depends on your application's voltage and physical stress requirements. -
Q: How do I choose the correct size (diameter) for my busbar?
A: You should select a sleeve based on its expanded (pre-shrunk) inner diameter. This diameter should be slightly larger than the busbar's outer diameter. After heating, the sleeve will shrink to approximately half this diameter, creating a snug fit. -
Q: Can the sleeves be cut to custom lengths?
A: Absolutely. They are supplied in continuous lengths on rolls or can be pre-cut to your specified dimensions. Custom length orders are common. -
Q: Is special training or equipment needed for installation?
A: Installation is straightforward with a standard industrial heat gun. No special training is typically required, but following basic heating guidelines (even heat application, avoiding overheating) is important for a good result. -
Q: Do you provide samples for testing?
A: Sample provision is often possible to allow customers to verify fit, performance, and installation process. Please contact our sales team to inquire about sample availability for your project.
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1Yr
Business Type
Manufacturer
Annual Export Value
US$1 Million - US$1.5 Million
Total Employees
11 - 50 People
Product Certifications
HACCP, TL900, QS9000, SA8000, ISO9001, ISO9004, ISO17799, ISO9000, ISO14000, ISO10441, ISO16949, TS16969, ISO19011:2000, OHSAS18001, Others
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