Cable Tray
Chinne Electric Cable Tray systems ensure safe, organized cable routing in industrial and commercial installations. Perforated, heavy/medium-duty designs with hot-dip galvanized, fire-retardant or standard powder coatings.
General information
Product Features
- High Load Capacity
Robust structure ensures strong mechanical performance for heavy cable installations. - Efficient Heat Dissipation
Perforated design improves airflow and reduces cable overheating. - Durable Construction
Designed for long-term use in demanding industrial environments. - Flexible Installation System
Compatible with a wide range of fittings for complex routing.
Dimensions & Specifications
Cable trays are available in multiple sizes to accommodate different installation requirements.
Standard dimensions are listed below. Custom sizes are available upon request.
|
W (mm) H (mm) |
50 | 100 | 150 | 200 | 300 | 400 | 500 | 600 |
|---|---|---|---|---|---|---|---|---|
| 50 | √ | √ | √ | √ | √ | √ | √ | √ |
| 75 | √ | √ | √ | √ | √ | √ | √ | |
| 100 | √ | √ | √ | √ | √ | √ | √ | |
| 150 | √ | √ | √ | √ | √ | √ |
Technical Specifications
- Standard Length: 3000 mm
- Material Options:
Carbon steel, stainless steel (SS304 / SS316), aluminum - Surface Finish:
Pre-galvanized, hot-dip galvanized, powder coated - Customization:
Available upon request
Surface Treatment Options
Different surface finishes are available depending on environmental conditions and project requirements.
| Aspect | Powder Coated | Pre-Galvanized (PG) | Hot Dip Galvanized (HDG) |
|---|---|---|---|
| Primary Objective | Corrosion protection & aesthetics | Cost-effective corrosion protection for indoor use | Heavy-duty corrosion protection, weather resistance |
| Surface Material / Treatment | Standard polyester, epoxy, or hybrid powder (organic polymers) | Zinc-coated steel sheet (pre-galvanized coil) | Zinc-iron alloy layer (pure zinc by hot-dip process) |
| Process | Electrostatic spray deposition + heat curing | Continuous galvanizing before forming | Immersion in molten zinc bath (~445 °C) forming metallurgical bond(pre-fabrication) |
| Coating Thickness | 60–120 µm | Typically 10–30 μm | Typically ≥65 µm (can be increased for aggressive environments) |
| Fire Performance | Combustible, produces smoke, no cable protection | Non-combustible (steel base) | Non-combustible (steel base), but no thermal insulation; zinc may vaporize under intense fire, cables still damaged |
| Corrosion Protection | Moderate (indoor, dry environments) | Moderate (indoor, dry environments) | Excellent (suitable for outdoor, marine, salt spray, chemical plants) |
| Surface Finish | Smooth, uniform gloss, wide colour range | Smooth, metallic, uniform | Dull silver-grey, may have zinc spangles or runs |
| Governing Standards | IEC 61537 | IEC 61537, EN 10346 | IEC 61537, ISO 1461 / ASTM A123 |
| Typical Applications | General indoor, offices, commercial spaces without special fire or severe corrosion | Indoor installations, commercial buildings | Outdoor cable trenches, coastal facilities, wastewater treatment, chemical plants, high humidity / high temperature areas |
| Relative Cost | Low | Low | Medium-high |
Fire Resistance Performance
Cable tray systems can support fire-resistant installations when used with fire-resistant cables and certified fire protection systems.
The overall fire performance depends on the complete system configuration, including cable type and installation conditions.
Technical Description
Cable tray systems provide a reliable and structured solution for cable routing and support.
They are designed for easy installation, long-term durability, and compatibility with various accessories, ensuring flexibility for complex installations.
Applications
- Industrial plants and manufacturing facilities
- Commercial buildings and office infrastructure
- Power distribution systems
- Transportation infrastructure
- Marine and chemical environments
Customization
Custom sizes, materials, and surface finishes are available upon request to meet specific project requirements.
Cable Tray FAQ FAQs
Click a question to reveal the answer.
These cable trays are manufactured in full compliance with IEC 61537, the international standard for cable tray systems and cable ladder systems used in electrical installations. This standard specifies requirements for mechanical load capacity, material properties, protective coatings, and safety performance under defined conditions. Chinne Electric ensures every production batch meets the dimensional tolerances, structural integrity, and corrosion resistance criteria outlined in IEC 61537, providing confidence in their long-term reliability for industrial and commercial applications.
The cable trays are fabricated from cold-rolled mild steel sheet conforming to ISO 3574 CR4 grade, ensuring consistent formability and strength for perforated profiles. Three distinct finishes are available to match environmental demands: hot-dip galvanized for heavy-duty corrosion protection and weather resistance, fire-retardant powder coating for installations where flame spread and circuit integrity are critical, and standard powder coating for general indoor use with reliable aesthetics and durability. Each finish is tested to retain adhesion and protective properties over the product lifetime.
The perforated cable tray is engineered for both medium-duty and heavy-duty load classes as defined in IEC 61537, with safe working loads dependent on span, width, and side rail height. The pattern of perforations is optimized to reduce weight without compromising the beam strength of the side rails and base. Detailed load tables are available for each configuration, but typical installations can support dense cable bundles in power distribution and control circuits with deflection within permissible limits, ensuring safe and code-compliant installations.
The perforated base and side walls allow natural convection airflow around installed cables, which significantly improves heat dissipation and reduces the risk of overheating in power circuits. This ventilation keeps conductor temperatures lower, preserving insulation life and maintaining current-carrying capacity according to derating factors. Additionally, the open area facilitates drainage and prevents accumulation of moisture or debris, contributing to long-term electrical safety and reducing maintenance needs in both indoor and outdoor environments.
Standard cable tray widths range from 50 mm to 600 mm, but custom widths can be manufactured up to 900 mm to accommodate large cable volumes or unique routing requirements. Side rail heights are offered in multiple standard profiles including 25 mm, 40 mm, 50 mm, 60 mm, 80 mm, and 100 mm, with the flexibility to specify intermediate heights for special projects. All custom configurations retain the same perforation pattern, material grade, and finish options, and are tested to the same IEC 61537 performance criteria as the standard catalog items.