Eaton TP444SSB Square Outlet Box - 4in UL Listed NEC/CEC
Part Number: TP444SSB
Quick Summary
TP444SSB is a steel square outlet box designed for versatile electrical enclosures in control panels and industrial installations. Engineers struggle with limited space, mismatched knockouts, and non-compliant boxes in harsh environments. This enclosure meets NEC/CEC standards and UL certifications for ordinary/non-hazardous locations, supporting safe, code-compliant installations. Its 22 cu in capacity, NM clamps, welded construction, and 4 in box size help reduce assembly time, improve reliability, and simplify maintenance in industrial electrical infrastructure. Designed for enclosure and conduit management, it also supports expansion with standard knockouts to fit NM clamps and cable entries. This helps procurement reduce SKU variety while ensuring compliance.
Product Information
Extended Description
TP444SSB Eaton: Eaton Crouse-Hinds series Square Outlet Box, (1) 1/2", 4", SSB, NM clamps, Welded, 1-1/2", Steel, (4) 1/2", (2) 1/2", (1) 3/4" E, 22.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP444SSB
UPC
786189001723
Product Length/Depth
6 in
Product Height
4 in
Product Width
1.5 in
Product Weight
0.93 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
22 cubic in
Depth
1-1/2"
Conduit/cable
NM clamps
Bracket style
SSB
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
Crouse-Hinds series 4-Inch Steel Square Boxes and Covers catalog page
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings UL certification
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings UL certification
Steel Outlet Boxes for Electrical Systems
Steel Outlet Boxes for Electrical Systems
Feature: Welded steel construction with the SSB bracket style delivers a rugged enclosure that resists vibration and maintains mounting alignment in demanding environments. Business impact: Fewer field repairs, reduced maintenance costs, and longer asset life. Application: Ideal for installing 4-inch square boxes in industrial control panels, machine safety enclosures, and panel boards where space is tight but reliability is essential. Feature: The 22 cubic inch capacity, combined with four 1/2 inch side knockouts and one 3/4 inch bottom E knockout, optimizes internal layout for wiring, regulators, and terminal blocks while leaving room for future expansion. Business impact: Efficient wire routing reduces installation time and helps meet NEC/CEC fill calculations. Application: Suitable for control cabinets in assembly lines, packaging systems, and process equipment where wiring density matters. Feature: NM clamps included and side knockouts support multiple entry options, enabling flexible conduit and cable management without additional accessories. Business impact: Faster onboarding of devices and consistent hardware configurations reduce field downtime and procurement complexity. Application: Particularly beneficial for retrofits and upgrades in legacy machines and newer automated lines. Feature: NEC/CEC compliance and UL listing for ordinary locations provide regulatory confidence for non-hazardous industrial environments. Business impact: Simplifies risk assessment, improves audit readiness, and accelerates project approvals. Application: Fits general purpose electrical enclosures in manufacturing, warehousing, and process plants. Feature: 4-inch box size aligns with standard enclosure families and supports reliable covers and accessories from Eaton and compatible suppliers. Business impact: Reduces SKU proliferation, speeds configuration, and lowers total installation material cost. Application: Works across new builds and retrofits in controls cabinets, power distribution boxes, and automation panels.
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FAQs
TP444SSB is a 4-inch square steel box designed for straightforward mounting in standard control panels. Use the included NM clamps for entry and align the knockouts—four 1/2 inch side knockouts and one 3/4 inch bottom E knockout—to route wires cleanly. Confirm ordinary location suitability per NEC/CEC and verify cover compatibility with Eaton Crouse-Hinds accessories.
TP444SSB includes NM clamps and a knockout pattern that accommodates multiple entry options. The four 1/2 inch side knockouts and one 3/4 inch bottom knockout enable flexible wiring routes for sensors, relays, and terminal blocks. This combination reduces the need for additional fittings and speeds up compliant, neat installations in industrial enclosures.
Yes. TP444SSB is rated for ordinary/non-hazardous locations and carries UL certification, aligning with NEC/CEC standards. This provides regulatory confidence for non-hazardous industrial environments and supports safe, code-compliant wiring in manufacturing, assembly, and processing facilities.
TP444SSB is part of the Eaton Crouse-Hinds steel square box family, designed for seamless compatibility with standard covers and accessories. The welded construction, SSB bracket style, and 4-inch box footprint ensure reliable mounting, consistent fit with covers, and predictable installation behavior across the product line, reducing customization and sourcing complexity.
Using TP444SSB delivers measurable ROI through reduced maintenance costs from a robust welded steel enclosure, faster installation due to included NM clamps and standardized knockouts, and fewer field calls for enclosure-related issues. Its NEC/CEC compliance and UL listing also lower risk during audits and project approvals, accelerating time-to-operation for automated systems.