Eaton TP404REDMSB Square Outlet Box - NEC/CEC
Part Number: TP404REDMSB
Quick Summary
The Eaton TP404REDMSB square outlet box protects terminations in industrial control panels and outdoor conduit runs. Installers often struggle with corrosion resistance, limited space, and time-consuming knockouts, leading to field rework. This enclosure is designed for Ordinary/Non-Hazardous Locations under NEC/CEC and UL listings, delivering safe, compliant installations. By combining welded steel construction, 22 cubic inches of capacity, and color coded red enclosure, it supports durable, scalable wiring infrastructures while reducing downtime. The design also accommodates the MSB mounting bracket for quick installation and minimizes the need for auxiliary parts. With proven reliability in harsh industrial environments, it helps engineers meet project timelines and maintenance budgets.
Product Information
Extended Description
TP404REDMSB Eaton: Eaton Crouse-Hinds series Square Outlet Box, (2) 1/2", (2) 1/2", (1) 3/4" E, 4", MSB, Red, 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
TP404REDMSB
UPC
662279019857
Product Length/Depth
4 in
Product Height
1.5 in
Product Width
4 in
Product Weight
0.8 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
MSB
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
Color
Red
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: The TP404REDMSB is a 4-inch square box with a 22 cubic inch capacity. Business Impact: This ample volume accommodates splices, devices, and connectors while reducing the need for undersized enclosures. Application: Ideal for control panels, junctions, and motor starters in ordinary locations. Feature: Welded steel construction with a red enclosure delivers enhanced durability and corrosion resistance. Business Impact: Provides robust protection in demanding environments, lowering replacement costs and downtime. Application: Suitable for harsh factory floors and mechanical rooms where reliability matters. Feature: Conduit entries are listed as Conduit (no clamps) with versatile knockout patterns. Business Impact: Speeds up wiring and reduces accessory costs by enabling flexible routing. Application: Wiring runs in equipment racks and panels where quick access and clean layouts improve efficiency. Feature: Side knockouts (eight 1/2 in, four 1/2 in, one 3/4 in E) and bottom knockouts (two 1/2 in, two 1/2 in, one 3/4 in E) provide multiple connection options. Business Impact: Improves installation versatility, reduces need for adapters, and supports code-compliant terminations. Application: Industrial control and process equipment installations requiring ready-made knockout configurations. Feature: MSB bracket compatibility and 4-inch box size streamline mounting and compatibility with Eaton’s Crouse-Hinds lineup. Business Impact: Accelerates project timelines and minimizes parts inventory while ensuring consistent fit. Application: Panel builders and OEMs integrating square boxes into framed enclosures. Feature: NEC/CEC compliance and Ordinary/Non-Hazardous Location rating deliver regulatory confidence. Business Impact: Ensures design meets essential electrical codes, reducing risk of non-compliant installations. Application: Facilities and plants adhering to NEC/CEC guidelines, with UL certification reinforcing credibility.
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FAQs
TP404REDMSB is a welded steel 4-inch square box designed to accept MSB brackets, ensuring a secure fit within Eaton’s Crouse-Hinds system. Its 22 cu in capacity supports typical splices and devices, while side and bottom knockouts offer flexible conduit routing. This combination speeds up installations and reduces the need for extra mounting accessories in most standard control panel applications.
The enclosure provides side knockouts: eight 1/2 in, four 1/2 in, and one 3/4 in E, plus bottom knockouts: two 1/2 in, two 1/2 in, and one 3/4 in E. Depth is 1-1/2 in, and conduit connections are supported without clamps, with the option to add clamps per local codes. This layout supports flexible wiring and quick field terminations.
TP404REDMSB is designed for Ordinary/Non-Hazardous Locations under NEC/CEC standards and carries UL certification. This combination provides regulatory confidence for industrial installations, from control panels to mechanical rooms, ensuring compliant and safer electrical infrastructure in non-hazardous environments.
The welded steel construction offers rugged durability, reducing damage risk and replacement costs. MSB bracket compatibility speeds mounting, and the generous 22 cu in capacity minimizes the need for additional enclosures. Flexible knockouts and conduit options simplify routing, lowering field rework, enabling faster project completion, and decreasing maintenance downtime.
TP404REDMSB is intended for Ordinary/Non-Hazardous Locations, typically indoors or protected areas. For outdoor or harsher environments, plan for additional weatherproofing or use enclosures specifically rated for outdoor exposure. Within its intended scope, the welded steel construction offers durable service in standard industrial settings.