Specifications and dimensions of vertical supports for cable trays

Vertical cable tray supports are designed according to DIN 4102 Part 12, with widths of 200–600 mm, maximum cable weight of 20 kg/m, and fastening spacing up to 1. 2 m.

Standard Dimensions and Material

Vertical cable ladders and trays, such as the STL, STM, and STIC series, are available in widths ranging from 200 mm to 600 mm and are manufactured from galvanized or stainless steel to ensure durability and corrosion resistance. The rail height and material thickness are specified to support the intended cable load while maintaining structural integrity. These supports can be mounted directly to walls or via internal/external wall connection angles (WWU 150/8 or WWI 80) with a maximum fastening spacing of 1.

2 m.

Load Capacity and Support Requirements

The maximum permissible cable dead weight for these vertical supports is 20 kg/m. For continuous vertical runs exceeding 3500 mm, additional support is required to prevent cable kinking or slipping. This can be achieved through a lateral offset of at least 300 mm or a sealed strain relief housing tested for fire protection.

Rung and Tray Specifications

Cable ladder rungs are spaced to accommodate cable bending radii and prevent drooping. For large power cables, rung spacing of 9 inches or wider is recommended, while smaller instrumentation cables may use 6–9 inches (150–230 mm) spacing. Pre-punched holes on side rails allow for easy attachment of accessories without drilling, and solid or ventilated tray bottoms can be selected based on cable type and environmental requirements.

Compliance and Standards

Vertical supports are designed to meet DIN 4102 Part 12 for fire-resistant installations (E30, E60, E90) and are compatible with cables that have valid general test certificates from building authorities. Horizontal test results are applicable to vertical arrangements if proper support is provided at transition points.

Summary of Key Specifications

Widths: 200–600 mmMaterial: Galvanized or stainless steelMaximum cable weight: 20 kg/mFastening spacing: ≤ 1. 2 mRung spacing: 150–230 mm (instrumentation), ≥ 9 inches (power cables)Support for vertical runs >3500 mm: lateral offset ≥ 300 mm or strain relief housingMounting: Direct wall or via connection angles (WWU 150/8, WWI 80)Compliance: DIN 4102 Part 12, fire-resistant classes E30, E60, E90These specifications ensure structural stability, fire safety, and proper cable management for vertical cable tray installations in industrial and commercial environments.