AST3223R

Overview

The Hoffman Enclosures Inc. AST3223R is a Type 1 Splitter Trough designed for indoor electrical power distribution. Constructed from 14/16 gauge steel with an ANSI 61 gray polyester powder paint finish, this unit measures 36 inches in length, 8.25 inches in width, and 4.5 inches in height. It supports three-wire systems with a 225-amp rating and accommodates conductors ranging from 6 AWG to 300 kcmil. The enclosure features pre-installed terminal blocks, a single-point ground lug, hinged covers, and various side knockouts for flexible wiring configurations.

Feature Summary

• Splits feeder circuit conductors into multiple branch circuit conductors using pre-installed terminal blocks
• Includes a single-point ground lug for secure grounding connections
• Features hinged covers and mounting holes in the back for accessible installation
• Provides various size knockouts on each side for cable entry

Applications

• Indoor power distribution systems requiring splitter trough functionality
• Splitting feeder circuits into multiple branch circuits in commercial or industrial settings
• Three-wire and four-wire power distribution infrastructure
• Electrical enclosures requiring NEMA Type 1 protection for indoor environments

Procurement Notes

Verify that the specific order includes the lid, as some listings distinguish between the trough unit and the complete assembly with lid. Confirm the NEMA Type 1 rating aligns with indoor environmental requirements. Ensure the 225-amp capacity and conductor range (6 AWG to 300 kcmil) match the project's electrical load specifications before finalizing procurement.

Selection Notes

Select this model when a dedicated splitter trough is required for splitting feeders into branches within an indoor environment. The 36-inch length provides ample space for standard wire management. Verify compatibility with existing cabinet structures if used as part of a larger assembly. The steel construction and gray finish offer durability suitable for general industrial applications.

Part Context

This component belongs to the Hoffman AST series of junction boxes and splitter troughs. These units are specifically engineered to facilitate the transition from main feeder lines to individual branch circuits. The series typically offers various lengths and wire configurations to accommodate different electrical panel layouts and load distribution needs.

Replacement Considerations

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