Eaton TP404SSB Square Outlet Box - 22 cu in Capacity
Part Number: TP404SSB
Quick Summary
TP404SSB is an Eaton Crouse-Hinds square outlet box designed for 4-inch electrical installations in industrial facilities. This enclosure addresses the common struggle of selecting the right knockout pattern and mounting option without sacrificing space or protection. It aligns with NEC/CEC standards to support compliant, safer installations in ordinary/non-hazardous locations, with Canadian certification options available. By combining welded steel construction with a 22 cubic inch capacity and versatile knockouts, it enables faster wiring, consistent performance, and scalable installations across multi-site projects.
Product Information
Extended Description
TP404SSB Eaton: Eaton Crouse-Hinds series Square Outlet Box, (2) 1/2", (2) 1/2", (1) 3/4" E, 4", SSB, Conduit (no clamps), Welded, 1-1/2", Steel, (8) 1/2",(4) 1/2", (1) 3/4" E, 22.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP404SSB
UPC
786189001655
Product Length/Depth
4 in
Product Height
1.5 in
Product Width
4 in
Product Weight
0.83 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
22 cubic in
Depth
1-1/2"
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 - TP404SSB
Eaton Specification Sheet - TP404SSB
Feature: 4-inch square box with 22 cubic inch capacity provides ample space for conductors and devices, supporting efficient wiring layouts. Business Impact: Reduces field rework and enables clean, code-compliant terminations in factory floors or control panels. Application: Ideal for 4-inch square box installations in industrial automation cabinets and equipment racks. Feature: Welded steel construction delivers rugged durability and metal integrity in harsh environments, lowering maintenance costs over time. Business Impact: Extends enclosure life in demanding facilities, reducing replacement cycles. Application: Suitable for heavy-duty electrical infrastructure and process automation setups. Feature: (8) 1/2" side knockouts, (4) 1/2" side knockouts, (1) 3/4" E, plus (2) 1/2" bottom knockouts, (2) 1/2" bottom knockouts, (1) 3/4" E. Business Impact: Maximizes wiring flexibility and minimizes the need for adapters or extensions. Application: Convenient for conduit routing in complex installations. Feature: Conduit (no clamps) entry and SSB bracket style simplify mounting and reduce accessory inventory. Business Impact: Faster installation, fewer mounting components, and lower total installed cost. Application: Common in E‑I/A‑C panels and field enclosures where quick access is prioritized. Feature: NEC/CEC compliance and Ordinary/Non-Hazardous Location suitability provide regulatory assurance. Business Impact: Simplifies specification work and ensures code-aligned wiring practices. Application: Applicable across commercial and light industrial facilities with standard electrical codes. Feature: 4" box size and 22 in³ capacity enable scalable wiring for future device upgrades while maintaining space for splices. Business Impact: Improves lifecycle planning and reduces future retrofits. Application: Ideal for control panels and light‑to‑medium duty electrical distribution.
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FAQs
The TP404SSB is a 4-inch square steel outlet box designed for control panels and equipment enclosures in industrial facilities. It provides 22 cubic inches of internal space for conductors and devices, with multiple knockouts and conduit entry options to support flexible wiring layouts and code-compliant installations.
TP404SSB features eight 1/2-inch side knockouts, four 1/2-inch side knockouts, one 3/4-inch E knockout on the sides, and two 1/2-inch plus two 1/2-inch and one 3/4-inch E knockouts on the bottom. It is configured for conduit entry without clamps, enabling straightforward wiring and reduced accessory needs.
Yes. The TP404SSB adheres to NEC/CEC standards and is suitable for Ordinary/Non-Hazardous Locations. This ensures regulatory alignment for general industrial and commercial applications, with documentation available in product literature and Canadian certification references.
Welded steel delivers rugged durability and consistent enclosure integrity, reducing maintenance and replacement costs in harsh environments. The SSB bracket style supports straightforward mounting and reliable alignment, which speeds up installation in control panels and electrical cabinets while improving long-term reliability.
Specification sheets and certification references for TP404SSB are available through Eaton's documentation library, including the Crouse-Hinds steel square boxes catalog page and Canadian certification listings. Look for the TP404SSB datasheet and UL/Canada certification pages to access the most current installation guidance.