Eaton TP403SSB Square Outlet Box - NEC/CEC
Part Number: TP403SSB
Quick Summary
The Eaton TP403SSB square outlet box is a robust enclosure solution for field installations in control panels and conduit runs. Engineers often struggle with finding a box that fits standard conduit configurations while providing ample clearance for terminations. It is designed to meet NEC/CEC standards with Ordinary/Non-Hazardous location classifications and Canadian certification documentation, ensuring reliable compliance. Built from welded steel for durability and featuring standard knockouts, it supports faster installation and scalable wiring in industrial environments. Tight packaging, predictable footprint, and compatibility with the Crouse-Hinds series simplify procurement and maintenance planning. This combination translates into reduced field rework, lower labor costs, and safer, compliant electrical infrastructure.
Product Information
Extended Description
TP403SSB Eaton: Eaton Crouse-Hinds series Square Outlet Box, (2) 1/2", (2) 1/2", (1) 3/4" E, 4", SSB, Conduit (no clamps), Welded, 2-1/8", Steel, (8) 1/2",(4) 1/2", (1) 3/4" E, 30.3 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP403SSB
UPC
786189001969
Product Length/Depth
4 in
Product Height
2.13 in
Product Width
4 in
Product Weight
0.95 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
Conduit (no clamps)
Bracket style
SSB
Construction
Welded
Side knockouts
(8) 1/2 in, (4) 1/2 in, (1) 3/4 in E
Bottom Knockouts
(2) 1/2 in, (2) 1/2 in, (1) 3/4 in E
Material
Steel
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 - TP403SSB
Eaton Specification Sheet - TP403SSB
Feature: The TP403SSB uses a 4-inch steel square box with a 30.3 cubic inch capacity. Business Impact: This interior space accommodates multiple conductors, neatly organized terminations, and room for splices without compromising code compliance. Application: It supports control panel and junction box installations in mid-size industrial enclosures. Feature: Welded construction and steel material deliver rugged durability. Business Impact: Welded seams resist vibration and impact, extending service life in harsh factory environments. Application: Suitable for on-site installations where equipment experiences frequent handling. Feature: Conduit entry is configured with no clamps and multiple knockouts: (8) 1/2 in side, (4) 1/2 in, (1) 3/4 E, and bottom knockouts: (2) 1/2 in, (2) 1/2 in, (1) 3/4 in E. Business Impact: Flexible wiring options streamline conduit routing and reduce labor during termination. Application: Ideal for projects requiring precise conduit planning in panels and control cabinets. Feature: Bracket style SSB provides secure mounting within standard Eaton Crouse-Hinds enclosures. Business Impact: Simplifies installation and reduces mounting drift, improving reliability. Application: Fits into frames and supports inside electrical infrastructure. Feature: Code compliance: Area classification Ordinary/Non-Hazardous Locations; NEC/CEC standards. Business Impact: Ensures regulatory compliance, speeding approvals and reducing risk. Application: Required where safety and compliance are paramount in industrial facilities and data centers. Feature: The box weighs about 0.95 lb with a compact 2-1/8 in depth. Business Impact: Lightweight but sturdy, it reduces handling risk and speeds field installation. Application: Beneficial for retrofit and new-construction projects where installer mobility matters.
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FAQs
Yes. TP403SSB includes multiple knockouts: (8) 1/2 in side knockouts, (4) 1/2 in side knockouts, and (1) 3/4 in E on the sides, plus bottom knockouts (2) 1/2 in, (2) 1/2 in, (1) 3/4 in E. It is specified for conduit (no clamps), allowing flexible routing. Ensure the conductors fit within the 30.3 cu in capacity and comply with NEC/CEC guidelines.
TP403SSB is a 4-inch square box with a width and length of 4 inches, a depth of 2-1/8 inches, and a capacity of 30.3 cubic inches. It weighs approximately 0.95 lb and is constructed from welded steel. It supports multiple conductors and terminations while meeting NEC/CEC standards and Ordinary/Non-Hazardous area classifications.
TP403SSB is ideal for non-hazardous industrial locations, including control panels, junction boxes, and field wiring in manufacturing lines. Its 4x4 inch footprint and standard knockouts enable flexible conduit routing in equipment enclosures, panels, and racks. The welded steel construction provides durability in vibration-prone environments.
TP403SSB adheres to NEC/CEC standards and is classified for Ordinary/Non-Hazardous Locations. Canadian certification documentation is available, and the product references a UL-listed framework for cross-border compliance, ensuring reliable regulatory alignment for multinational deployments.
Because it uses conduit without clamps and features welded, straightforward mounting, installers can reduce steps and accelerate on-site wiring. The 30.3 cu in capacity minimizes rework and space constraints, lowering labor costs while maintaining compliance, enabling quicker project turnover and easier future modifications.