Eaton TP644 Octagon Box - 4 in Steel, NEC/CEC Certified
Part Number: TP644
Quick Summary
TP644 octagon box provides rugged steel enclosure for concrete-wall and surface-mounted junctions in commercial and industrial installations. Facilities often struggle with wiring access and durability in concrete or brick walls, making revisions costly and time-consuming. This box is UL listed and NEC/CEC compliant for Ordinary/Non-Hazardous Locations, with certifications that support quick inspections and safe operation. By integrating with Eaton Crouse-Hinds systems, you gain consistency in termination, compatibility with standard knockouts, and a faster path to code-compliant assemblies. Businesses benefit from reliable protection, predictable lead times, and reduced field rework, enabling safer installations and smoother project delivery.
Product Information
Extended Description
TP644 Eaton: Eaton Crouse-Hinds series Octagon Concrete Box, 4", 4", Steel, 1/2" and 3/4" double row, 47.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series octagon concrete box
Catalog Number
TP644
UPC
786189106442
Product Length/Depth
4 in
Product Height
4 in
Product Width
4 in
Product Weight
1.13 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Material
Steel
Box size
4"
Depth
4"
Side knockouts
1/2 in and 3/4 in double row
Capacity
47 cubic in
Crouse-Hinds series 4-Inch Steel Octagon Concrete Boxes catalog page
4-Inch Steel Octagon Concrete Boxes UL certification
4-Inch Steel Octagon Concrete Boxes UL certification
Eaton Specification Sheet - TP644
Eaton Specification Sheet - TP644
Feature: Steel construction and 4-inch footprint. Benefit: Provides durable, code-compliant protection for splices and terminations in non-hazardous environments, reducing downtime and rework. Application: Ideal for concrete-wall or surface-mounted junctions in warehouses and manufacturing floors. Feature: Side knockouts with 1/2 in and 3/4 in double row. Benefit: Flexible conduit routing simplifies wiring diagrams and speeds installation without adapters. Application: Suitable for varied conduit configurations in tight spaces. Feature: 47 cubic inch capacity. Benefit: Ample space for conductors and splices, enabling cleaner terminations and fewer overcrowded junctions. Application: Common in control panels and field wiring within non-hazardous locations. Feature: UL listed and NEC/CEC compliant for Ordinary/Non-Hazardous Locations. Benefit: Neutralizes compliance risk, expedites inspections, and supports safer deployments across facilities. Application: Preferred choice for regulated industrial environments. Feature: 4 x 4 x 4 inch dimensions and 1.13 lb weight. Benefit: Manageable weight with solid mounting stability, improving handling in tight retrofit projects. Application: Field installations where ease of transport and mounting matter. Feature: Compatibility with Eaton Crouse-Hinds steel specialty boxes. Benefit: Seamless integration with existing conduit systems and accessories, reducing design churn. Application: Upgrades and new-builds within steel enclosure ecosystems.
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FAQs
The TP644 is a 4 in steel octagon box designed for ordinary/non-hazardous locations, offering 47 cu in of space and 1/2 in and 3/4 in double-row side knockouts. For concrete walls, ensure proper mounting anchors and compatible ceiling or wall supports, and plan conduit routing with available knockouts to minimize field modifications.
TP644 is UL listed and complies with NEC/CEC requirements for Ordinary/Non-Hazardous Locations. It’s designed for standard commercial/industrial use, ensuring regulatory compliance and reliable inspections across U.S. and Canadian facilities.
Yes. The TP644 is part of Eaton Crouse-Hinds steel specialty boxes family, engineered for seamless integration with standard conduits, fittings, and accessories used in steel enclosure systems, reducing compatibility concerns during upgrades or new installations.
Typical applications include control panels and junctions in non-hazardous warehouse, manufacturing, and office-to-floor connections where a robust, non-corrosive steel box is required. The 4 in x 4 in footprint and 47 cu in capacity support practical wiring layouts in concrete walls or surface-mounted installations.
UL listing and NEC/CEC compliance reduce rework risk and inspection delays, while durable steel construction lowers life-cycle maintenance costs. The box’s straightforward compatibility with standard conduits accelerates installation, delivering faster project completion and lower total cost of ownership.