ASTB225

Overview

The Hoffman ASTB225 is a Splitter Trough Block Assembly rated for 600V and 225A. It features an aluminum construction with brushed finish. The unit includes main lugs and branch lugs, along with copper/aluminum connectors secured to insulators. It supports wire sizes from 6 AWG to 300 kcmil for feeder circuits and 14 to 2/0 AWG for branch connections. Each branch lug has a current rating of 125A.

Feature Summary

• Provides tapping capability for feeder branch circuits within splitter troughs
• Integrates main lugs and branch lugs with insulated copper/aluminum connectors
• Constructed from aluminum material with a brushed surface finish

Applications

• Tapping feeder branch circuits in splitter troughs
• Industrial electrical distribution systems requiring 600VAC ratings
• Enclosure assemblies utilizing Type 1 configurations

Procurement Notes

Verify that the required voltage rating matches the 600V specification and confirm the amperage requirements align with the 225A main and 125A branch ratings. Ensure compatibility with the specified wire gauge range of 6 AWG to 300 kcmil for feeders and 14 to 2/0 AWG for branches. Check if the aluminum construction and brushed finish meet environmental and aesthetic standards for the installation site.

Selection Notes

Select this assembly when a dedicated block for splitting feeder circuits in troughs is needed. It is suitable for applications requiring a 225A main capacity with multiple 125A branch outputs. Consider the aluminum material and brushed finish for durability and appearance. Verify that the physical dimensions fit the intended splitter trough configuration and that the wire size capabilities match the connected conductors.

Part Context

This component belongs to the Splitter Trough Block Assemblies line by nVent Hoffman. These blocks are designed to facilitate the connection of branch circuits to main feeders within enclosed trough systems. The product integrates essential electrical connection points directly into the trough structure, simplifying wiring layouts in industrial control panels and distribution enclosures.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.