Cable Trays
Importers in Dallas

IEC 61537 is the global cable-management standard. It sets the safe working load, deflection class and corrosion class. For US-spec projects, add NEMA VE 1; for Indian-standard purchases, add IS 12352. Galvanizing sits outside both and is specified separately, to ASTM A123 or IS 4759. Reference IEC 61537 in the BOQ and ask the supplier for the load-deflection type-test report.

Common gauges are 1.2, 1.6, 2.0 and 2.5 mm. 1.2 mm suits light control cabling on short spans, 1.6 mm is the general-purpose default, and 2.0 to 2.5 mm is for heavy power runs, wide trays or long support spans. Rather than order by gauge alone, give the cable load per metre and support spacing, and let the manufacturer confirm the thickness.

Add the cross-sectional area of all cables, then keep the fill ratio below about 40% of the tray's internal area so heat can dissipate, per IEC 61537 practice. Don't stack a single layer of power cable; for control cable, 40% fill is acceptable. Share the cable schedule and we can confirm tray width, depth and load class before fabrication.

IEC 61537 is the global benchmark, it covers load class, deflection limits, electrical continuity and corrosion class. We manufacture to IEC 61537, IS 12352 and NEMA VE 1 simultaneously, which lets EPCs write any of the three standards into the BOQ without re-sourcing. Load-deflection test reports are available for all standard profiles, share the specification and we'll confirm the compliant profile before you commit the BOQ.