Eaton TP4HPA Square Outlet Box - NEC/CEC, 30.3 cu in
Part Number: TP4HPA
Quick Summary
The Eaton TP4HPA square outlet box provides rugged steel enclosure for wiring terminations in industrial panels. Engineers often struggle with compact spaces, multiple knockouts, and reliable grounding in harsh environments; this box streamlines mounting while reducing field labor. It is NEC/CEC compliant and rated for ordinary/non-hazardous locations, with Canadian certifications referenced in UL listings to support cross-border projects. With a 4-inch box, 2-1/8 inch depth, 30.3 cubic inches capacity, and reinforced S bracket, it supports durable terminations and faster installation. Built to improve efficiency and reliability in electrical infrastructure, this enclosure helps ensure compliant, long-lasting connections in control cabinets and junctions.
Product Information
Extended Description
TP4HPA Eaton: Eaton Crouse-Hinds series 4" square outlet box, (2) 1/2", (2) 1/2"+ 3/4" E bottom KOs, Stranded wire, S bracket, Single bracket, Welded, 2-1/8" depth, Steel, (8) 1/2", (4) 1/2" + 3/4" E side KOs, Includes fork terminal, 30.3 cu in
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP4HPA
UPC
662277115612
Product Length/Depth
4 in
Product Height
3 in
Product Width
5 in
Product Weight
0.92 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
30.3 cubic inch capacity
Depth
2-1/8"
Bracket style
S
Construction
Welded
Box ground wire
Stranded
Side knockouts
(8) 1/2", (4) 1/2" + 3/4" E side KOs
Bottom Knockouts
(2) 1/2", (2) 1/2"+ 3/4" E bottom KOs
Configuration
Single bracket
Material
Steel
Special features
Includes fork terminal
Crouse-Hinds series 4-Inch Steel Square Boxes and Covers catalog page
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings Canadian certification
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings Canadian certification
Eaton Specification Sheet - TP4HPA
Eaton Specification Sheet - TP4HPA
The TP4HPA uses a welded steel 4-inch square enclosure delivering 30.3 cubic inches of capacity, enabling more conductors and terminations without crowding and reducing field modifications for faster panel assembly. This translates to tangible time savings on installation jobs and improved reliability in control cabinets where space is at a premium. The design supports versatile wiring with (8) side knockouts at 1/2 inch and (4) 1/2 inch + 3/4 inch E knockouts on the sides, plus (2) 1/2 inch and (2) 1/2 inch + 3/4 inch E knockouts on the bottom, making feed-through and branch connections straightforward in industrial enclosures. The combination of a sturdy welded construction and an S bracket configuration offers long-term durability and secure mounting, reducing vibration-related connections in demanding environments.
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FAQs
Plan layout around the eight 1/2 inch side knockouts and the bottom knockout options (two 1/2 inch, two 1/2 inch + 3/4 inch E). Use the S or single bracket for secure mounting, route conductors through the available KOs, and terminate with the included fork terminal. Welded construction provides rigidity while maintaining enclosure integrity in tight spaces.
The TP4HPA is a 4-inch square steel box with a 30.3 cubic inch capacity and a 2-1/8 inch depth, weighing about 0.92 lb. It accommodates stranded ground wiring and supports multiple knockouts for flexible wiring routes. Its dimensions and capacity help ensure compliant conductor counts and proper clearance inside the enclosure.
The TP4HPA is rated for Ordinary/Non-Hazardous Locations, aligning with NEC/CEC standards for general purpose control panels and non-hazardous environments. For hazardous locations, consider enclosures specifically rated for those conditions and always verify local code requirements before deployment.
The TP4HPA complies with NEC/CEC standards and is intended for ordinary locations. Canadian certification links are available, and UL-listed references support cross-border use. Always confirm project-specific certifications and the most current listings to ensure compliance in multi-country installations.
Welded steel construction, S/single bracket configuration, and the included fork terminal streamline grounding and mounting, reducing installation time and potential rework. The 4-inch box with multiple knockouts accommodates future expansion, cutting future labor costs and improving long-term reliability in industrial automation enclosures.