Eaton TP408 Square Outlet Box - NEC/CEC
Part Number: TP408
Quick Summary
The Eaton TP408 square outlet box provides a robust 4-inch square enclosure for wiring in industrial control panels. Field installers often confront mismatched knockouts, cramped spaces, and uncertain code compliance during panel or enclosure installs. This product aligns with NEC/CEC standards, is UL-listed for steel square boxes, and is rated for Ordinary/Non-Hazardous Locations. By standardizing with TP408, teams gain installation predictability and faster wiring layouts, while reducing rework and warranty issues. Steel square boxes like this one also support scalable conduit routing, improving long-term facility reliability and maintenance efficiency.
Product Information
Extended Description
TP408 Eaton: Eaton Crouse-Hinds series Square Outlet Box, (5) 1/2", 4", Conduit (no clamps), Drawn, 1-1/4", Steel, (12) 1/2", 18.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP408
UPC
786189104080
Product Length/Depth
4 in
Product Height
1.25 in
Product Width
4 in
Product Weight
1 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
18 cubic in
Depth
1-1/4"
Conduit/cable
Conduit (no clamps)
Construction
Drawn
Side knockouts
(12) 1/2 in
Bottom Knockouts
(5) 1/2 in
Material
Steel
Crouse-Hinds series 4-Inch Steel Square Boxes and Covers catalog page
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings UL certification
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings UL certification
Steel Outlet Boxes for Electrical Systems
Steel Outlet Boxes for Electrical Systems
Feature: 4-inch square box with 18 cubic inches of capacity; Business impact: Enables more conductors and devices in a compact footprint, reducing the need for rerouting and accessory additions in control cabinets. Application: Ideal for compact control panels and junctions in non-hazardous environments. Feature: (12) 1/2 inch side knockouts and (5) 1/2 inch bottom knockouts; Business impact: Flexible conduit entry points support varied wiring schemes and faster installation, lowering labor time and inventory complexity. Application: Suitable for standardized conduit layouts in industrial automation and machine panels. Feature: Drawn steel construction; Business impact: Durable enclosure that resists impact and corrosion, improving lifecycle cost and warranty satisfaction. Application: Harsh factory floors and install sites with frequent handling. Feature: Conduit (no clamps) and 4x4x1-1/4 inch geometry; Business impact: Streamlines field assembly with fewer components and mounting steps, reducing installation time by minutes per box. Application: Quick retrofits and new builds in assembly lines. Feature: Certifications and compliance NEC/CEC with UL certification; Business impact: Ensures regulatory compliance and simplified QA, minimizing risk during audits and cross-site deployments. Application: Essential for regulated facilities and multi-site rollouts.
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FAQs
Yes. TP408 is rated for Ordinary/Non-Hazardous Locations and conforms to NEC/CEC standards, with UL certification; it is designed for reliable, code-compliant installation in standard electrical environments.
TP408 features a 4" x 4" box size, 1-1/4" depth, and 18 cubic inches of internal capacity. It includes twelve 1/2" side knockouts and five 1/2" bottom knockouts, made from drawn steel, and is intended for conduit entries without clamps.
Plan for conduit entries with no clamps, using the provided side and bottom knockouts. The box is drawn steel and sized for standard 4-inch square backboxes, supporting straightforward mounting in non-hazardous environments with NEC/CEC compliance.
Key specs include a 4-inch square box, 1-1/4 inch depth, 18 cubic inches of capacity, (12) 1/2 inch side knockouts, and (5) 1/2 inch bottom knockouts, constructed in steel and suitable for ordinary locations under NEC/CEC.
Official documents are available through Eaton’s resources, including the Crouse-Hinds steel square boxes catalog page, UL certification pages, and the Steel Outlet Boxes spec guide PDFs linked in the product downloads.