Eaton TP431MSBPF Square Outlet Box - NEC/CEC
Part Number: TP431MSBPF
Quick Summary
Eaton Crouse-Hinds square outlet box provides a rugged enclosure solution for electrical installations in control panels and junction boxes. Projects stall when boxes lack proper knockouts, grounding, or corrosion resistance, delaying wiring and increasing risk. This enclosure aligns with NEC/CEC standards and supports Canadian certification validation for ordinary/non-hazardous locations. By combining robust steel construction with practical features, this 4-inch box delivers reliable performance in industrial environments while simplifying procurement, installation, and compliance management.
Product Information
Extended Description
TP431MSBPF Eaton: Eaton Crouse-Hinds series outlet box, (1) 1/2", 4", MSB, 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
TP431MSBPF
UPC
662279090498
Product Length/Depth
4 in
Product Height
2.13 in
Product Width
4 in
Product Weight
1.14 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
Bracket style
MSB
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
Eaton Specification Sheet - TP431MSBPF
Eaton Specification Sheet - TP431MSBPF
Feature → Business Impact → Application: The TP431MSBPF uses welded steel construction, delivering stiffness and long-term durability that reduce maintenance cycles and unexpected box failures in harsh environments. This directly lowers total cost of ownership and enhances system reliability for control panels and junction enclosures where uptime matters. Application: Steel square boxes in 4-inch form factor support compact, code-compliant wiring layouts in electrical rooms and outdoor-rated settings where space is at a premium. Feature → Business Impact → Application: It provides (4) 1/2" side knockouts, (2) 1/2" side knockouts, and (1) 3/4" E knockout plus a bottom knockout, enabling flexible conduit routing and fast wiring. Application: Ideal for installations requiring AC/MC clamps and versatile conduit access for diverse cable management scenarios. Feature → Business Impact → Application: MSB bracket style and welded construction offer secure mounting and robust mechanical support, reducing mounting errors and rework. Application: Suitable for panel mounting and surface installations where a dependable grounding path is essential. Feature → Business Impact → Application: Includes ground screw with pigtail lead, simplifying grounding and improving safety compliance in low and mid-voltage systems. Application: Particularly beneficial in systems with stringent grounding and bonding requirements, such as machine controls and process panels, where quick, repeatable grounding saves time during commissioning. Feature → Business Impact → Application: 30.3 cubic inch capacity and the 4" box size optimize space utilization, enabling more conductors or devices without expanding enclosure footprint. Application: Great for multi-cable feeds in compact control cabinets or junction enclosures in industrial facilities.
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FAQs
The TP431MSBPF supports AC/MC clamps and includes a ground screw with pigtail, making grounding straightforward. It has multiple knockouts (four 1/2-inch side, two additional 1/2-inch, one 3/4-inch E, and a bottom 1/2-inch) that enable flexible conduit routing and wiring harness layout in control panels and junction boxes.
Key specs include a 4-inch box size, 2-1/8-inch depth, 30.3 cubic inches of internal capacity, welded steel construction, and AC/MC clamps. Knockouts consist of four 1/2-inch side openings, two additional 1/2-inch, one 3/4-inch E, and one bottom 1/2-inch knockout for versatile wiring options.
Yes. The enclosure is designed to meet NEC/CEC standards and supports Canadian certification workflows. It is suitable for ordinary/non-hazardous locations, aligning with typical industrial installation requirements and cross-border project needs.
Absolutely. The box includes a ground screw with a pigtail lead for reliable grounding and is specified for AC/MC conduit clamps, enabling secure and compliant electrical connections in both new installations and retrofit applications.
The welded steel construction and durable 4-inch form factor minimize corrosion and rework, lowering maintenance costs over time. Its broad knockout options and integrated grounding features accelerate installation, reducing labor hours during commissioning and future expansions.