A664SU

Overview

The A664SU is a Type 1 pull-box extender manufactured by nVent Hoffman. Constructed from light gray steel, it measures 6 inches in width and 4 inches in depth. This component is designed to extend existing pull boxes for commercial and general industrial applications. It features unique keyhole screw slots to facilitate easy installation. The unit includes plated steel screws for mounting directly to the pull box.

Feature Summary

• Maintains electrical grounding continuity between the main enclosure and the extender
• Compatible with standard Type 1 pull box accessories
• Features unique keyhole screw slots for simplified installation

Applications

• Commercial building infrastructure
• General industrial environments
• Custom sized pull box replacement scenarios

Procurement Notes

Verify that the target application requires a Type 1 rating rather than NEMA 12 or higher. Confirm physical dimensions match the existing pull box opening. Ensure compatibility with current accessory mounts. Check material specifications against environmental exposure requirements. Validate that included mounting hardware meets project standards.

Selection Notes

Select this extender when a custom-sized pull box was previously required but a standardized solution is preferred. It serves as a direct extension for existing Type 1 enclosures. Consider the light gray steel finish for visual consistency with other Hoffman components. Evaluate space constraints to ensure the 6x4 inch footprint fits the installation area.

Part Context

This part belongs to the Hoffman Enclosures line of pull-box accessories. It is categorized under general enclosure accessories. The manufacturer is nVent Hoffman, formerly known as Hoffman Enclosures, Inc. It is distinct from full enclosure units, serving specifically as an extension component.

Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.