Eaton TP404MSBPFRED Square Outlet Box - 4-Inch Steel

Part Number: TP404PF
Manufacturer
Eaton
Part number
TP404PF

Quick Summary

The Eaton Crouse-Hinds square outlet box is a rugged solution for terminating electrical conductors in industrial enclosures. It addresses space constraints and reliability challenges common in crowded panels and harsh factory floors. Designed for ordinary/non-hazardous locations and NEC/CEC compliance, it also carries Canadian certification documentation for regional approvals. This box delivers grounding integrity and installation versatility, enabling faster wiring and safer terminations. For engineers and procurement teams, it combines durable steel construction with flexible knockout options, supporting efficient, compliant installations across control panels and machinery enclosures.

Product Information

Extended Description

TP404PF Eaton: Eaton Crouse-Hinds series Square Outlet Box, (2) 1/2", (2) 1/2", (1) 3/4" E, 4", Conduit (no clamps), Welded, 1-1/2", Steel, (8) 1/2",(4) 1/2", (1) 3/4" E, Includes ground screw with pigtail lead, 22.0 cubic inch capacity
Product Name
Eaton Crouse-Hinds series square outlet box
Catalog Number
TP404PF
UPC
786189000276
Product Length/Depth
4 in
Product Height
1.5 in
Product Width
4 in
Product Weight
0.74 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)
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
Special features
Includes ground screw with pigtail lead
Feature: 4-inch square steel box with solid welded construction and MSB bracket. Benefit: provides structural rigidity and a reliable mounting base that resists impact and deformation in demanding environments. Application: ideal for control panels and industrial machines where stable box alignment and long-term durability matter. Feature: Grounding provisions include a ground screw with pigtail lead and a solid box ground wire. Benefit: simplifies compliant grounding and reduces installation time while meeting electrical codes. Application: critical for safe equipment grounding in heavy-duty facilities. Feature: Multiple knockouts on sides, bottoms, and ends (including 2x 1/2" side; 2x 3/4" bottom; 4x 1/2" plus 2x 1/2"+3/4" end). Benefit: maximizes wiring flexibility and conductor routing with minimal modification. Application: supports diverse wiring schemes for motor starters, sensors, and power distribution. Feature: Conduit (no clamps) design and MSB stud bracket for versatile mounting. Benefit: speeds field installs and reduces hardware requirements, lowering overall installation cost. Application: aligns with standard conduit practices in industrial environments. Feature: 22.0 cubic inch capacity, 1-1/2" depth, 4" box size, and red steel construction. Benefit: enables convenient lead packing and organized terminations while maintaining a compact footprint. Application: suitable where space is at a premium but conductor density is high.

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FAQs

TP404MSBPFRED is designed for conduit with no clamps included. It provides side, bottom, and end knockouts (including 2x 1/2", 2x 3/4", and EKO options) to accommodate common conduit sizes, enabling straightforward field routing without the need for adapters. For installations requiring clamps, plan additional hardware or accessory kits that match 1/2" or 3/4" conduit entries.
This 4" square steel box features a 22.0 cubic inch capacity and a 1-1/2" depth, with overall dimensions suitable for 4" applications. The box weighs approximately 0.86 lb and is finished in red steel, compatible with standard control panel layouts while maintaining a compact profile for dense equipment cabinets.
Yes. The box is intended for Ordinary/Non-Hazardous locations and complies with NEC/CEC standards. Canadian certification documentation is available, supporting cross-border installations. This makes it suitable for general industrial environments without hazardous classifications while meeting common regulatory requirements.
Yes. The unit includes a ground screw with a pigtail lead and a solid box ground wire, simplifying compliant grounding connections and reducing the need for additional components on site.
The MSB bracket and welded construction provide enhanced durability, faster alignment, and reduced mounting adjustments in rugged environments. This translates to lower maintenance costs, fewer rework events, and quicker replacements in busy facilities—particularly useful for machine builds, panel upgrades, and retrofits where reliability and uptime are critical.