Eaton TP431PF Square Outlet Box - NEC/CEC Steel
Part Number: TP431PF
Quick Summary
The Eaton TP431PF square outlet box delivers rugged 4-inch steel protection for electrical terminations in industrial enclosures. Engineers often struggle with space constraints, varied knockout configurations, and grounding reliability, leading to wiring delays. This welded, 4-inch square box meets NEC/CEC standards and Ordinary/Non-Hazardous location requirements, delivering durable enclosure performance. Secondary benefits include its 30.3 cubic inch capacity, AC/MC clamps, and a ground screw with pigtail for quick, compliant installations. With a welded steel construction and standard 4-inch footprint, it integrates smoothly with Crouse-Hinds accessory lines and panel assembly workflows. This translates to reduced field rework, faster installations, and improved reliability in control panels and industrial enclosures.
Product Information
Extended Description
TP431PF Eaton: Eaton Crouse-Hinds series Square Outlet Box, (1) 1/2", 4", AC/MC clamps, Welded, 2-1/8", Steel, (4) 1/2", (2) 1/2", (1) 3/4" E, Includes ground screw with pigtail lead, 30.3 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP431PF
UPC
786189000344
Product Length/Depth
4 in
Product Height
2.13 in
Product Width
4 in
Product Weight
0.99 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
30.3 cubic in
Depth
2-1/8"
Conduit/cable
AC/MC clamps
Construction
Welded
Side knockouts
(4) 1/2 in, (2) 1/2 in, (1) 3/4 in E
Bottom Knockouts
(1) 1/2 in
Material
Steel
Special features
Includes ground screw with pigtail lead
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
Steel Outlet Boxes for Electrical Systems
Steel Outlet Boxes for Electrical Systems
Feature: The TP431PF uses a welded steel frame with a 4-inch square footprint. Business impact: This rugged construction resists flex and vibration, improving enclosure durability and reducing conduit stress over the life of a panel. Application: Ideal for control cabinets, machine enclosures, and industrial gear where reliable terminations and maintenance-free performance are essential. Feature: Capacity is 30.3 cubic inches with precise 4 by 4 inch dimensions and a 2-1/8 inch depth. Business impact: Supports multiple conductors and long-term wire terminations without overcrowding, simplifying code-compliant fill and inspections. Application: Wiring terminations in large control panels and equipment housings. Feature: AC/MC clamps included for conduit and cable entry. Business impact: Reduces hardware count and speeds installation while preserving enclosure integrity against dust and moisture. Application: Power feeds and signaling cables in industrial panels. Feature: Knockouts: (4) 1/2 in, (2) 1/2 in, (1) 3/4 in E side; Bottom: (1) 1/2 in. Business impact: Flexible routing options tailor to specific layouts; improves cable management and serviceability. Application: Custom conduit routing in equipment boxes and control panels. Feature: Ground screw with pigtail lead included. Business impact: Simplifies grounding and reduces field labor; NEC/CEC compliance plus Ordinary/Non-Hazardous location suitability provide regulatory confidence. Application: Safe, code-compliant grounding in enclosures for machinery and automation equipment.
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FAQs
TP431PF provides flexible conduit entry with side knockouts: four 1/2 inch, two additional 1/2 inch, and one 3/4 inch E knockout, plus a single 1/2 inch bottom knockout. It uses AC/MC clamps for reliable termination entries and is welded steel for rigidity. This configuration supports varied wiring layouts while maintaining the 30.3 cubic inch internal capacity.
TP431PF is rated for Ordinary/Non-Hazardous Locations under NEC/CEC standards and is not specified for hazardous or Class I environments. For those settings, you would need explosion-proof, sensor- or IP-rated enclosures. Always verify site classification and local codes before deployment to avoid code violations and ensure safe operation.
TP431PF is a 4-inch square steel box with a 30.3 cubic inch capacity and a depth of 2-1/8 inches. It measures a 4 by 4 inch footprint and provides welded construction for strength. It accommodates multiple conductors and offers ground integration through a built-in ground screw with pigtail lead for secure terminations.
Certifications for TP431PF include NEC/CEC compliance and suitability for Ordinary/Non-Hazardous Locations. Canadian certification references are available in UL documentation for this product. Always check the latest certification status in your region and align with local regulatory requirements to ensure compliant installation and ongoing safety in electrical enclosures.
Installation advantages include welded steel durability, built-in ground screw with pigtail, and ready-to-use AC/MC clamps, which reduce parts and labor. The 4-inch footprint fits standard enclosures, while the knockout pattern supports flexible routing. This translates to faster panel builds, easier inspections, and improved reliability in automated equipment and industrial control cabinets.