High Temperature Resistant Cable Tray Models

High temperature resistant cable trays are available in materials such as stainless steel, low-carbon steel, aluminum, and specialized fiberglass, with models rated for continuous use up to 1200°F depending on material and design.

Material-

Based Performance

Stainless Steel (AISI 304, 316, 316L, 316Ti): Offers the highest temperature resistance. Type 316 stainless steel retains about two-thirds of its room temperature strength at 1200°F, outperforming 304 stainless by approximately 15% at extreme temperatures. Common models include E5 (1.

4571/AISI 316Ti), E4 (1. 4404/AISI 316L), and E10 (1. 4307/AISI 304L) from Niedax.

Low-

Carbon Steel: Performs well up to 600°F with minimal strength loss; at 800°F, it loses about 10% of its strength, and at 1000°F, it drops to 50% of room temperature strength. Coatings such as zinc or paint may limit effective temperature resistance. Aluminum (6063-T6 Alloy): Suitable for moderate high temperatures; loses 9% of strength at 200°F and over 33% at 300°F.

Models are often used in environments like deserts or industrial plants with moderate heat exposure. Fiberglass (Polyester or Vinyl Ester): Non-metallic trays are less effective at high temperatures. Fiberglass loses 10% of strength at 100°F and up to 50% at 200°F, requiring additional supports for elevated temperature applications.

Common High Temperature Resistant Cable Tray TypesLadder Cable Tray: Open design allows heat dissipation; available in stainless steel and aluminum for high temperature applications. Perforated Cable Tray: Provides ventilation and moderate heat resistance; stainless steel variants are preferred for extreme heat.

Solid-

Bottom Cable Tray: Protects cables from radiant heat; stainless steel or coated steel recommended for high temperature zones. Wire Mesh (Basket) Tray: Lightweight and flexible; stainless steel mesh trays can handle elevated temperatures while maintaining structural integrity. Channel Tray: Suitable for smaller cable runs; stainless steel or aluminum models are used in high temperature environments.

Manufacturer-

Specific Models

Niedax: E1 (1. 4016), E2 (1. 4310), E5 (1.

4571/AISI 316Ti), E4 (1. 4404/AISI 316L), E10 (1. 4307/AISI 304L) are stainless steel models rated for high temperature applications.

AB

B: Offers stainless steel and pre-galvanized steel trays with high temperature resistance and corrosion protection. Eaton: Provides aluminum, steel, and fiberglass trays with continuous temperature ratings up to 1200°F for specialty cables like Teflon® insulated wires. Legrand: Cable trays designed for high temperature environments, with materials and coatings selected to maintain mechanical and electrical integrity under elevated heat.

Key Considerations

Verify the continuous temperature rating of both the tray and the cables it supports; standard 600V building wire is rated up to 194°F, while specialty cables can reach 500°F. Consider coatings and finishes: Paint or zinc coatings may degrade at temperatures below the steel substrate's limit. Support spacing: High temperature environments may require closer support intervals to compensate for material strength loss.

Material selection: Stainless steel is preferred for extreme heat, low-carbon steel for moderate heat, aluminum for lightweight moderate heat, and fiberglass for chemical resistance with moderate heat limitations. This list provides a comprehensive overview of high temperature resistant cable tray models, their materials, and performance characteristics suitable for industrial, commercial, and extreme environment applications.