A4448T1T

Overview

The Hoffman Enclosures A4448T1T is a screw-cover wiring trough designed for indoor wire and cable management. Constructed from 16-gauge steel with an unpainted galvanized finish, it provides NEMA Type 1 protection against falling dirt and light splashing water. The unit measures 4 inches in width, 4 inches in height, and 48 inches in length. It features keyhole screw slots on the cover for secure attachment and pre-drilled mounting holes on the back panel for easy installation. This component supports UL 870, CUL, and CSA C22.2 standards.

Feature Summary

• Constructed from 16-gauge steel with an unpainted galvanized finish for durability
• Provides NEMA Type 1 environmental protection for indoor use
• Includes keyhole screw slots on the cover for secure fastening
• Ships completely assembled without requiring end cap installation

Applications

• Indoor wire and cable distribution management
• Protection of junction points and terminations
• Cable routing within industrial control panels
• Organizing power and signal lines in electrical enclosures

Procurement Notes

Verify that the required NEMA Type 1 rating aligns with the intended indoor environment. Confirm the 4x4x48 inch dimensions fit the available space within the target enclosure. Ensure compatibility with existing mounting hardware due to the specific back-panel hole configuration. Check that the unpainted galvanized finish meets corrosion resistance requirements for the specific application area.

Selection Notes

Select this model when a long, narrow channel is needed for horizontal cable runs inside an enclosure. The 48-inch length reduces the need for multiple splices or connectors compared to shorter alternatives. The screw-cover design offers better security than hinged covers in high-vibration environments. Consider the 16-gauge steel thickness for structural rigidity during cable loading.

Part Context

This part belongs to the Hoffman screw-cover wiring trough family, which provides organized pathways for cables within electrical enclosures. Unlike conduit bodies, these troughs are open-channel solutions designed for internal routing rather than external weatherproofing. They complement other Hoffman accessories like wire ducts and strain reliefs to create complete cable management systems.

Replacement Considerations

No public confirmed substitute part numbers are documented for this specific model.