Perforated Combined Cable Tray

Multi-hole modular cable trays are a subtype of tray-type cable trays, offering excellent heat dissipation and protection, and are widely used in industrial and commercial settings.

Structural Features

The main frame of the multi-hole modular cable tray is made of high-quality cold-rolled steel plate or aluminum alloy, shaped like a U-tray with 10-50mm high side flanges. Circular or elongated openings are evenly distributed at the bottom and lower part of the side panels, with an opening rate typically between 15% and 30%. Accessories include dedicated covers, elbows, tees, crosses, connecting plates, etc., which can be flexibly combined according to the wiring path.

Core Advantages

- Excellent Heat Dissipation: The openwork design allows air to directly penetrate the interior of the cable tray, improving heat dissipation efficiency by more than 40% compared to fully enclosed trough-type cable trays.

- Strong Protection: The side flanges prevent external impacts, rodents, and insects from climbing, preventing cables from slipping. With the addition of covers in outdoor or humid environments, the protection level can reach IP30.

- High Practicality: The perforated design allows for clear visibility of cable laying status, facilitating maintenance. The bottom is a single panel, offering superior load-bearing capacity compared to ladder-type cable trays. It can simultaneously accommodate power and control cables, and its overall cost falls between that of trough-type and ladder-type trays, providing excellent value.

Multi-hole modular cable trays are suitable for medium-power cable cabling in industrial plants, mixed power and data cabling in commercial buildings, cabling in damp environments such as underground parking garages, and cable laying in semi-open outdoor areas.

When selecting a cable tray, the width should be determined based on the total cross-sectional area of ​​the cables, ensuring a fill rate of no more than 40% (power cables) or 50% (control cables), and selecting appropriate materials based on the environment. During installation, the spacing between horizontal hangers should not exceed 1.5m, and the spacing between vertical supports should not exceed 2.5m. Each section of cable tray must be bridged with a copper core wire of at least 6mm² to ensure grounding safety.

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