Eaton TP423PF Square Outlet Box - NEC/CEC
Part Number: TP423PFRED
Quick Summary
The Eaton TP423PF Square Outlet Box provides a rugged enclosure for 4-inch conduit-fed electrical installations in industrial enclosures. Engineers often struggle with missing knockouts, grounding gaps, and codes that complicate panel wiring in busy facilities. This model meets NEC/CEC standards and is UL-certified for ordinary/non-hazardous locations, with a welded steel body and ground screw with pigtail lead. Designed for fast, compliant wiring, it also offers a 22 cu in capacity and a VMS bracket option, delivering durable, code-compliant performance while reducing installation time and maintenance costs in commercial and industrial panels.
Product Information
Extended Description
TP423PFRED Eaton: Eaton Crouse-Hinds series square outlet box, (2)1/2", (2)3/4" bottom, Solid, 4" box, VMS brkt, Red, Welded, 1-1/2" depth, (4) 1/2", (2) 1/2"+3/4" EKO end, Steel, (2) 1/2", (1)1/2"+3/4" EKO side, Ground screw w/ pigtail, 22.0 cu in capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP423PFRED
UPC
662279176345
Product Length/Depth
1.5 in
Product Height
4 in
Product Width
4 in
Product Weight
0.82 lb
Area classification
Ordinary/Non-Hazardous Locations
Standards type
NEC/CEC
Box size
4"
Capacity
22.0 cubic inch capacity
Depth
1-1/2"
Conduit/cable
Conduit (no clamps)
Bracket style
VMS
Construction
Welded
Box ground wire
Solid
Side knockouts
(2) 1/2", (1) 1/2" + 3/4" EKO
Bottom Knockouts
(2) 1/2", (2) 3/4"
End Knockouts
(4) 1/2", (2) 1/2" + 3/4" EKO
Color
Red
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 UL certification
4-Inch Steel Square Outlet Boxes, Covers, Extension Rings UL certification
Steel Outlet Boxes for Electrical Systems
Welded steel construction delivers a robust 4" square enclosure that withstands vibration and impact in industrial environments, reducing field service calls and increasing panel reliability for longer equipment life in control cabinets. The 22 cubic inch capacity supports multiple conductors and enough space for future wiring, improving layout flexibility and minimizing rework on complex machines. Conduit entries and knockouts are designed for conduit (no clamps), with six 1/2-in side knockouts, three 1/2-in side knockouts, and a 3/4-in E entry, plus bottom knockouts to streamline routing and reduce install time in cramped panels. The included ground screw with pigtail lead ensures reliable grounding continuity, lowering the risk of ground faults and improving safety on high‑demand lines. The VMS bracket style and welded construction offer secure mounting and vibration resistance, making it easier to install in equipment racks and industrial enclosures. With NEC/CEC compliance and Ordinary/Non-Hazardous Location rating, this box supports code-aligned installations while remaining lightweight at 0.8 lb, optimizing shipping and handling costs for field teams. Compatibility with standard conduit systems and straightforward wiring increases first-time fix rates, reduces change orders, and supports scalable panel designs for growing manufacturing lines.
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FAQs
For reliable installations, ensure adequate clearance for conduit entries and knockouts, with space for wiring and grounding. The TP423PF uses a welded steel body, supports VMS bracket mounting, and weighs approximately 0.8 lb, which facilitates handling in tight control panels. Plan for both side and bottom knockouts and allow room for conductor routing and grounding connections to meet NEC/CEC requirements in ordinary locations.
TP423PF provides side knockouts totaling six 1/2 in plus three additional 1/2 in knockouts and a 3/4 in E entry, along with bottom knockouts of two 1/2 in, another two 1/2 in, and a 3/4 in E entry. This configuration supports flexible conduit routing (conduit without clamps) and accommodates common industrial wiring schemes while maintaining 22 cu in of internal capacity.
TP423PF is specified for Ordinary/Non-Hazardous Locations under NEC/CEC standards. It is not rated for hazardous environments or outdoor use without an appropriate weatherproof enclosure or additional protection. For outdoor or hazardous applications, pair with compliant weatherproof housings or select an enclosure with suitable IP/UL ratings and environmental certifications.
TP423PF aligns with NEC/CEC standards and is listed for ordinary/non-hazardous locations. It also references UL certification for US and Canada in official documentation. These certifications ensure code compliance, safety, and reliability in industrial panels, reducing audit risk and streamlining field approvals during installation and maintenance.
The welded steel construction delivers durable protection against impact and vibration, reducing servicing frequency. Integrated ground screw with pigtail simplifies grounding, shortening installation time and improving reliability. The 22 cu in capacity supports scalable wiring layouts, enabling future upgrades without replacing the enclosure, which lowers lifecycle costs and improves project ROI for manufacturing plants and process lines.