A12104SU

Overview

The A12104SU is a Type 1 screw-cover pull box extender manufactured by nVent Hoffman. Designed for wall-mount applications, it extends standard pull boxes to accommodate additional wiring or components. The unit measures 12 inches in height, 10 inches in width, and 4 inches in depth. Constructed from painted steel with a gray finish, it provides mechanical protection for internal electrical connections while maintaining grounding continuity between the main enclosure and the extender section.

Feature Summary

• Maintains electrical grounding continuity between the primary enclosure and the extension unit
• Features unique keyhole screw slots designed to facilitate straightforward installation procedures
• Includes plated steel mounting screws specifically intended for secure attachment to the pull box

Applications

• Extending existing Type 1 pull boxes for increased internal volume
• Accommodating additional wiring runs within industrial control panels
• Mounting supplementary accessories compatible with standard pull box configurations

Procurement Notes

Verify that the base pull box dimensions match the 12x10 inch specification required for this extender. Confirm that the application environment remains within Type 1 indoor ratings. Ensure that the included plated steel screws are sufficient for the specific mounting surface conditions. Check for compatibility with any existing internal accessories before finalizing the assembly plan.

Selection Notes

Select this extender when additional space is needed inside an existing Type 1 enclosure without replacing the entire unit. It is suitable for indoor environments where basic dust and dripping liquid protection is required. Consider the total weight capacity of the mounting surface when combining the base box and extender. Verify that the gray painted steel finish meets aesthetic requirements for the installation site.

Part Context

This component belongs to the Hoffman Enclosures line of electrical housing solutions. It serves as an accessory rather than a standalone enclosure, designed to modify existing pull box structures. The product supports modular expansion strategies in electrical panel design, allowing for flexible configuration adjustments based on evolving wiring needs.

Replacement Considerations

No public confirmed substitute part numbers are available.