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Aluminum Profile Cable Tray Specifications and Dimensions

Fiber and communications infrastructure knowledge brief Published 10 Oct 2026

Prepared for preliminary research by the ENSAA knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

Aluminum cable trays are available in ladder-style and long-span designs with widths from 12" to 36", rung spacing of 6", 9", or 12", and load ratings up to 528 lb/ft depending on span and class.

General Specifications

Material: Extruded aluminum alloy with H-beam or I-beam side rails for high strength-to-weight ratio and corrosion resistance. Tray Types: Ladder-style, ventilated, and long-span sections for industrial and commercial applications. Rung Spacing: 6", 9", or 12" centers; every second rung may be reversed for easy cable tie or clamp installation.

Edge Design: Rounded and smooth edges to prevent cable damage. Ventilation: Openings in the bottom allow airflow; maximum spacing between transverse elements is 102 mm (4 in.),.

Dimensions and Load Ratings

Tray Width

Tray DepthRung SpacingLoad Class / NEMAMax Load (lb/ft)Support Span (ft)Deflection (in.)12"4"–8"12"AH1-8528182. 13618"4"–8"12"AH1-8428202. 63724"4"–8"12"AH1-8353223.

19130"4"–8"12"AH1-8297243. 79736"4"–8"12"AH1-8253264. 45636"4"–8"12"AH1-8218285.

169Note: Load ratings are based on simple span support with deflection measured at the midpoint; continuous spans may reduce deflection by up to 50%. Additional FeaturesSnap-in Splice Plates: Provided with each straight section for fast assembly. Extra Load Capacity: Each tray section can support an additional 200 lb concentrated load on any portion of the tray beyond the published load class.

Applications: Suitable for oil and gas, pulp and paper, mining, food and beverage, and commercial infrastructure. Compliance: Meets NEMA, CSA, and UL standards; suitable for use as equipment grounding conductors.

Selection Guidelines

Environment: Choose material and finish based on exposure conditions (indoor, outdoor, corrosive environments),. Load and Span: Determine tray series using NEMA/CSA load/span designations. Tray Size: Select nominal depth and width based on cable loading and installation requirements.

Accessories: Include splice plates, bolts, nuts, and washers for complete assembly. This table and specifications provide a comprehensive reference for selecting aluminum cable trays for industrial and commercial electrical installations, ensuring proper load support, span, and compliance with safety standards.

Aluminum Profile Cable Tray Specifications and Dimensions - ENSAA OPTICAL NETWORKS [PDF]

Aluminum Profile Cable Tray Specifications and Dimensions

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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