Aluminum-Magnesium Cable Tray Models and Specifications

Aluminum-Magnesium cable trays are lightweight, corrosion-resistant systems designed for high-capacity cable management, available in ladder, ventilated, and wire basket configurations with UL, NEMA, and CSA certifications.Material and ConstructionAluminum-Magnesium cable trays are made from aluminum alloys with magnesium, providing high strength-to-weight ratio, corrosion resistance, and ease of installation compared to steel trays . They are suitable for indoor and outdoor applications, including industrial, commercial, and marine environments. Edges and welds are typically rounded and smooth to prevent cable damage .Common Models and ConfigurationsLadder TypeTwo longitudinal side rails with transverse rungs welded to the rails.Available in heavy-duty (Series 2–5) and light-duty (NEMA 12A/12B) options .Supports high cable loads and allows air circulation for heat dissipation.Ventilated or Perforated TrayBottom with openings for airflow, supporting up to 75% of the plan area for cable support .Maximum rung spacing typically 102 mm (4 in.) to ensure cable stability.Wire Basket TypeFlexible, lightweight, and ideal for complex routing.Quick connection systems for easy assembly and modifications .Extra-Large or High-Capacity TraysDesigned for large cable runs, ultralight weight, and high loading capacity.Components include straight sections, fittings, and horizontal reducers .Dimensions and Load RatingsSide rail height: 4 in. to 8 in.Loading height: 3 in. to 7 in.Safety factor: 1.5, with additional 200 lb concentrated load capacity on any portion of the tray .Rungs: Extra-wide aluminum, some reversed for top or bottom mounting of cable ties .Installation FeaturesSnap-in splice plates for quick assembly .Lightweight design reduces labor and installation time compared to steel trays .Compatible with top or bottom cable tie mounting.Full range of fittings and reducers available for custom layouts .Compliance and CertificationUL listed, CSA certified, and NEMA compliant .Suitable for use as equipment grounding conductors in accordance with NFPA 70.CE marking and third-party audits ensure compliance with international standards .Selection ConsiderationsChoose material based on environmental exposure (corrosive, indoor, outdoor).Select tray type according to cable load, airflow requirements, and installation complexity.Verify dimensions, load class, and safety factors to match project specifications . Aluminum-Magnesium cable trays provide a durable, lightweight, and versatile solution for modern electrical installations, supporting a wide range of cable types and configurations while ensuring compliance with safety and performance standards.