What does 1 2 in cable tray refer to

In cable tray terminology, "1.2" typically refers to the thickness of the tray material in millimeters.ExplanationIn metal cable tray systems, numeric values such as "1.2" are commonly used to indicate the thickness of the metal sheet from which the tray is fabricated. For example, a cable tray labeled as "1.2" is usually made from steel, aluminum, or stainless steel with a thickness of 1.2 mm . This thickness affects the tray's mechanical strength, load-bearing capacity, and durability, which are critical for supporting electrical cables safely.Related SpecificationsMaterial Type: Cable trays can be made from galvanized steel, stainless steel, aluminum, or composite materials, and the thickness may vary depending on the material and environmental conditions .Tray Width and Height: While "1.2" refers to thickness, other dimensions like width and height are specified separately and determine the tray's cable capacity.Load Rating: Thicker trays generally support heavier cable loads and are more resistant to bending or deformation.Practical ImplicationsA 1.2 mm thick tray is suitable for light to medium cable loads in standard indoor environments.For heavier loads or outdoor/corrosive environments, thicker trays (e.g., 1.5 mm or 2 mm) or corrosion-resistant materials may be preferred .Always verify the manufacturer's datasheet to ensure the tray meets the required mechanical and electrical standards for your installation. In summary, "1.2" in a cable tray specification is a shorthand for the metal thickness in millimeters, which directly influences the tray's strength, durability, and suitability for specific cable management applications .