Eaton TP456 Square Outlet Box - 4in, 22 cu in, NEC/CEC
Part Number: TP456
Quick Summary
Eaton TP456 Square Outlet Box provides rugged enclosure protection for industrial control panels and wiring in harsh environments. This square steel box helps resolve installation challenges such as difficult conduit routing and limited space by offering multiple knockouts and welded construction. It adheres to NEC/CEC standards and UL certifications, making compliance straightforward in both US and Canada for ordinary locations. The combination of a 4 inch box, 22 cubic inch capacity, and AC/MC clamps delivers a reliable, long-lasting solution for metal enclosure requirements in automation and electrical infrastructure projects, while supporting efficient maintenance and clear documentation for procurement teams.
Product Information
Extended Description
TP456 Eaton: Eaton Crouse-Hinds series Square Outlet Box, (1) 1/2", 4", F, 4, AC/MC clamps, Welded, 1-1/2", Steel, (2) 1/2", (1) 1/2", (1) 3/4" E, 22.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP456
UPC
786189104561
Product Length/Depth
4 in
Product Height
1.5 in
Product Width
4 in
Product Weight
0.92 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
22 cubic in
Depth
1-1/2"
Conduit/cable
AC/MC clamps
Bracket style
F
Construction
Welded
Side knockouts
(2) 1/2 in, (1) 1/2 in, (1) 3/4 in E
Bottom Knockouts
(1) 1/2 in
Cable knockouts
4
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: Welded steel construction ensures superior rigidity and corrosion resistance. Benefit: Reduces field repairs and rework, delivering lower lifecycle costs and higher uptime. Application: Industrial control panels and equipment enclosures in manufacturing environments. Feature: 4 inch box size with 22 cubic inches of capacity. Benefit: Ample space for wiring terminations while preserving compact footprint. Application: Secondary junctions and compact control installations in machine rooms. Feature: AC/MC clamps included with multiple knockouts (two 1/2 in, one 1/2 in, one 3/4 in E, bottom 1/2 in, total four cable knockouts). Benefit: Versatile conduit routing and easy field modification without fabricating adapters. Application: New builds and retrofit projects requiring flexible wiring layouts. Feature: Side and bottom knockouts for diverse installation needs. Benefit: Quick adaptation to existing conduits and reduced installation time. Application: Electrical infrastructure in panels, switchgear, and instrumentation enclosures. Feature: NEC/CEC compliance and Ordinary/Non-Hazardous area classification. Benefit: Regulatory alignment and safer operation in non-hazardous environments, backed by UL certifications. Application: Industrial facilities with strict standards and documentation requirements.
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FAQs
TP456 provides (2) side knockouts at 1/2 in, (1) 1/2 in, (1) 3/4 in E, plus a bottom 1/2 in knockout and four total cable knockouts. Use the included AC/MC clamps to terminate conductors securely. Mount the box to a stable surface, route conduits through designated knockouts, fasten clamps, and terminate wiring per NEC/CEC guidelines. Welded construction supports quick field mounting and long-term stability.
Yes. The TP456 is designed to meet NEC/CEC standards and is suitable for Ordinary/Non-Hazardous locations. UL certification documentation is available in the product downloads for both the US and Canada, and the box is listed as a 4-Inch Steel Square Outlet Box, ensuring regulatory alignment and traceable compliance for industrial installations.
TP456 is ideal for industrial control panels, field-installed junctions, motor starters, and other wiring junctions where a robust, compact 4-inch steel enclosure is required. With a 22 cubic inch capacity and multiple knockouts, it supports flexible wiring, secure conduit routing, and scalable enclosure configurations within automation and electrical infrastructure projects.
Welded construction delivers superior rigidity, enhanced enclosure integrity, and reduced risk of panel loosening over time. This translates to improved ingress protection and durability in harsh environments, lowering maintenance needs and extending service life, which is critical for high-demand industrial applications and regulatory compliance.
Official documentation includes the Crouse-Hinds steel square boxes catalog page, UL certification pages for both US and Canada, and the Steel Outlet Boxes spec guide. You can access these via the downloads section linked to the TP456 product page, including the catalog, UL certifications, and the Steel Boxes spec guide for detailed dimensions and installation guidance.