Segregated Phase Bus Duct Systems

The ideal segregated phase bus duct solution for rugged applications

AZZ’s bus systems are built to deliver decades of reliable service in some of the most hostile environments. AZZ segregated phase bus represent an innovative design that provides effective performance and low maintenance.

With voltages ranging from 600 volts to 38kV and ampere ratings up to 10,000 amps, this design utilizes single-phase conductors in a common enclosure with metal barriers between phases. Copper or aluminum insulated conductors can be mounted on molded polyester porcelain post insulators with a 3-phase, 4-wire system (full and half neutrals) to enhance efficiency in a number of applications.


  • Smaller generator lead-in power plants
  • Hydro plants
  • Metal enclosed substations connecting to switchgear
  • Transmission distribution substations


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