Eaton TP318 Octagon Outlet Box - 21.5 cu in, Steel, NEC/CEC

Durable steel construction delivers robust protection for wiring connections in demanding industrial environments, reducing corrosion risk and maintenance costs while supporting long service life and predictable performance under vibration and impact. This translates to lower total cost of ownership for control panels and machinery enclosures, especially in manufacturing floors and process plants where reliability matters. The 4" box footprint with 21.5 cubic inches of capacity accommodates typical conductors and fixtures, while (4) knockouts and the arrangement of side knockouts (2x 1/2 in) plus a bottom knockout (1/2 in) offer flexible feed-through options. NM clamps are included for quick, code-compliant terminations, minimizing field fabrication and installation time. The C bracket style enhances mounting versatility on standard support structures, enabling faster deployment in crowded enclosures. Fixture-rated capability ensures compatibility with lighting fixtures and small devices without compromising enclosure integrity, supporting safer, code-compliant installations. NEC/CEC compliance and Ordinary/Non-Hazardous location classification reduce regulatory risk and simplify procurement for electrical contractors. The TP318’s weight of 0.88 lb aids handling and on-site maneuverability, while the steel body provides dependable protection against common industrial hazards. This product line aligns with Eaton’s Crouse-Hinds steel octagon box catalog, ensuring consistent performance across projects and simplifying spares management for maintenance teams. In tight spaces or retrofit scenarios, the 2-1/8" depth delivers a balance between wiring space and enclosure profile, making TP318 a practical choice for panel builders and electrical distributors.