Eaton TP643 Octagon Concrete Box - NEC/CEC Certification
Part Number: TP643
Quick Summary
The Eaton TP643 Octagon Concrete Box is a durable steel enclosure for surface-mounted electrical connections in industrial facilities. Installers often wrestle with proper sizing, knockouts, and secure mounting in cramped conduit layouts. It meets NEC/CEC standards and is listed for ordinary/non-hazardous locations, with Canadian certification support. The 4x4x4 inch steel box delivers 46 cubic inches of capacity, accommodating multiple conductors while keeping splices protected. This combination of rugged construction and documented compliance helps shorten installation times, reduce field rework, and ensure long-term reliability in upgrades and new builds. For procurement teams, the TP643 integrates smoothly with Eaton Crouse-Hinds accessories, streamlining compatibility checks and spare-part availability.
Product Information
Extended Description
TP643 Eaton: Eaton Crouse-Hinds series Octagon Concrete Box, 4", 4", Steel, 1/2" and 3/4", 46.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series octagon concrete box
Catalog Number
TP643
UPC
662279001227
Product Length/Depth
4 in
Product Height
4 in
Product Width
4 in
Product Weight
1.24 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
Capacity
46 cubic in
Crouse-Hinds series 4-Inch Steel Octagon Concrete Boxes catalog page
4-Inch Steel Octagon Concrete Boxes Canadian certification
4-Inch Steel Octagon Concrete Boxes Canadian certification
Eaton Specification Sheet - TP643
Eaton Specification Sheet - TP643
The TP643 is built from steel to provide durable, long-lasting protection for splices and terminations in surface-mounted applications, delivering reliable performance in high-traffic industrial environments, reducing maintenance cycles and downtime. This 46 cubic inch capacity supports multiple conductors within a compact 4x4x4 inch footprint, enabling more efficient wiring layouts and reducing the need for additional enclosures on control panels or junction points. With 1/2 inch and 3/4 inch side knockouts, installers gain flexible routing options that minimize the need for adapters and additional fittings, cutting installation time and material costs. NEC/CEC compliance and ordinary-location ratings simplify regulatory audits and plant-wide standardization, while Canadian certification listings bolster cross-border projects. The 4 inch dimensions align with common conduit and mounting patterns, ensuring straightforward retrofits and scalable installations. Compatibility with Eaton Crouse-Hinds accessories enhances spare-part availability and ongoing maintenance efficiency, lowering total cost of ownership while boosting field productivity. The enclosure’s steel construction also offers robust tamper resistance and improved durability for rough shop-floor environments, supporting uptime in continuous-operation facilities. Industry experience shows that standardized steel octagon boxes like the TP643 reduce install variance across projects, delivering predictable wiring outcomes and faster project completion times.
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FAQs
To install the TP643, position the box in the concrete form, align with conduit routes, and use the 1/2 in and 3/4 in knockouts for conduit fittings. Secure mounting with appropriate anchors or masonry screws, then terminate conductors inside the 46 cubic inch chamber. Follow NEC/CEC guidelines to ensure proper grounding and enclosure protection.
The TP643 is a 4x4x4 inch steel octagon concrete box with a 46 cubic inch capacity, featuring 1/2 inch and 3/4 inch side knockouts to fit common conduit fittings.
Yes. The TP643 is rated for Ordinary/Non-Hazardous Locations under NEC/CEC standards, and Canadian certification listings are available to support cross-border projects.
Absolutely. The TP643 is designed to work with Eaton Crouse-Hinds steel accessory families, enabling quicker part matching, easier upgrades, and streamlined maintenance across the installation lifecycle.
The TP643 delivers durable steel protection, easy mounting in concrete, flexible knockouts, and NEC/CEC compliance, which reduces field rework, accelerates installation, and lowers total cost of ownership in control panels and junction applications.