Crouse-Hinds 4" Square Steel O...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5.42
Eaton Crouse-Hinds 4" Square Outlet Box 18.0 Cubic Inch Capacity - Conduit (no clamps), Drawn

Crouse-Hinds 4" Square Steel Outlet Box 18 Cubic Inch Capacity Drawn Construction

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Model: TP408

In Stock (leaves warehouse same day if ordered before 3pm ET)

$5.42
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Crouse-Hinds 4" Square Steel Outlet Box 18 Cubic Inch Capacity Drawn Construction

Professional electrical junction box for versatile wiring applications

The Crouse-Hinds 4" Square Steel Outlet Box delivers reliable electrical junction performance with 18 cubic inch capacity and drawn steel construction. Designed for ordinary/non-hazardous locations, this professional-grade outlet box features comprehensive knockout configurations and NEC/CEC compliance for versatile conduit installations without clamps.

Professional Features & Benefits

  • 18 Cubic Inch Capacity: Provides ample space for wire connections and electrical components in standard applications
  • 4" Square Steel Construction: Drawn steel design ensures durability and long-lasting performance in electrical installations
  • Multiple Knockout Options: (12) 1/2 in side knockouts and (5) 1/2 in bottom knockouts offer flexible conduit entry configurations
  • 1-1/4" Depth: Optimal depth provides sufficient wire bending space while maintaining compact installation profile
  • NEC/CEC Standards Compliance: Meets National Electrical Code and Canadian Electrical Code requirements for safe installation
  • Conduit Ready Design: Engineered for conduit installations without clamps for streamlined electrical connections
  • Lightweight Construction: At 0.61 lb, provides easy handling and installation without compromising structural integrity

Technical Specifications

  • Area Classification: Ordinary/Non-Hazardous Locations
  • Bottom Knockouts: (5) 1/2 in
  • Box Size: 4"
  • Capacity: 18 cubic in
  • Conduit Cable: Conduit (no clamps)
  • Construction: Drawn
  • Depth: 1-1/4"
  • Product Height: 1.25 in
  • Product Length Depth: 4 in
  • Product Material: Steel
  • Product Weight: .61 lb
  • Product Width: 4 in
  • Side Knockouts: (12) 1/2 in
  • Standards Type: NEC/CEC

Professional Applications

  • Residential electrical installations and junction connections
  • Commercial building electrical systems
  • Industrial facility wiring applications
  • Electrical panel and device mounting
  • Conduit junction and distribution points
  • Professional electrical contractor projects

Why Choose Crouse-Hinds Quality?

Crouse-Hinds delivers proven reliability with NEC/CEC compliant steel construction and professional-grade drawn manufacturing. The comprehensive knockout configuration and 18 cubic inch capacity ensure versatile installation options while maintaining the durability and performance standards expected from trusted electrical infrastructure components.

Manufacturer Resources

Product Specs

Area Classification:
Ordinary/Non-Hazardous Locations
Bottom Knockouts:
(5) 1/2 in
Box Size:
4"
Capacity:
18 cubic in
Conduit Cable:
Conduit (no clamps)
Construction:
Drawn
Product Height:
1.25 in
Product Length Depth:
4 in
Product Material:
Steel
Product Weight:
.61 lb
Product Width:
4 in
Side Knockouts:
(12) 1/2 in
Standards Type:
NEC/CEC
Product Depth:
1-1/4"
Department:
Electrical
Product Type:
Electrical Box

Crouse-Hinds TP408 – Frequently Asked Questions

1) How many conductors can I put in a Crouse-Hinds TP408 4 inch square box?
The TP408 is an 18 cubic inch box, so conductor fill is calculated off that volume under NEC box fill rules. It has no internal cable clamps (it's built for conduit entry), so you don't lose volume to clamp deductions, but device yokes, grounds, and any fittings still count against the 18 cubic inches. Depth is 1-1/4 inches, which is the shallower of the common 4 inch square sizes, so if you're stacking several 12 AWG circuits through a junction point you may want a deeper box instead.
2) Is the TP408 rated for a hazardous or classified location?
No. The TP408 is listed for ordinary, non-hazardous locations only. Spray booths, fuel handling areas, grain handling, and any Class I or Class II Division area need an explosionproof or dust-ignitionproof box instead. Crouse-Hinds builds cast hazardous-location boxes for that work; this drawn steel square box is not one of them.
3) What size cover or mud ring fits the Crouse-Hinds TP408?
It's a standard 4 inch square box, 4 by 4 inches at the face, so it takes standard 4 inch square covers and plaster rings: flat blank covers, single-gang and two-gang raised device rings, and round fixture covers. Match the ring's raise to your finished wall thickness so the device sits flush with the drywall.
4) Will a shallow 1-1/4 inch box like the TP408 fit in a 2x4 stud wall or a furred-out masonry wall?
Yes. At 1-1/4 inches deep it's the shallow 4 inch square, which is what you want where depth is tight: furring strips over block, a thin partition, or a wall already crowded with pipe or insulation. A standard 2x4 stud bay has depth to spare. The tradeoff is volume, 18 cubic inches, so a deep 4 inch square box is the better call when several circuits pass through.
5) Does the Crouse-Hinds TP408 meet code for a commercial job in the US and Canada?
It's built to NEC and CEC standards, so it's usable on both sides of the border for ordinary-location work. Keep in mind the box itself is only part of the compliance picture: fill calculation, conduit support, and cover selection are still on the installer.
How fast can I get the Crouse-Hinds TP408 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Crouse-Hinds TP408 come with a warranty?
Absolutely. The Crouse-Hinds TP408 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Crouse-Hinds TP408?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Crouse-Hinds TP408 from ZenSupply?
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