Crouse-Hinds 4" Square Extensi...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$54.74
$4.74
Crouse-Hinds TP426 Eaton series Square Extension Ring, 4", Drawn, 1-1/2", Steel, (8) 3/4", 21.0 cubic inch capacity

Crouse-Hinds 4" Square Extension Ring 1-1/2" Deep Steel Construction with (8) 3/4" Knockouts

(No reviews yet) Write a Review

Model: TP426
Selected Model is

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

$54.74
$4.74
Adding to cart… The item has been added
Free Shipping on orders over $99
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Crouse-Hinds 4" Square Extension Ring 1-1/2" Deep Steel Construction with (8) 3/4" Knockouts

Professional electrical box extension for increased wiring capacity and depth

The Crouse-Hinds 4" Square Extension Ring delivers reliable electrical box extension capabilities with drawn steel construction and 21.0 cubic inch capacity. This professional-grade extension ring features 1-1/2" depth for additional wiring space and includes (8) 3/4" side knockouts for versatile conduit connections in ordinary/non-hazardous locations.

Professional Features & Benefits

  • 4" Square Design: Standard size compatibility ensures seamless integration with existing electrical box installations
  • 21.0 Cubic Inch Capacity: Generous internal volume accommodates multiple wire connections and junction requirements
  • Drawn Steel Construction: Durable manufacturing process provides superior strength and long-lasting performance
  • (8) 3/4" Side Knockouts: Multiple conduit entry points offer flexible installation options and routing capabilities
  • 1-1/2" Depth: Extended depth provides additional space for wire management and electrical connections
  • NEC/CEC Compliance: Meets National Electrical Code and Canadian Electrical Code standards for professional installations

Technical Specifications

  • Area Classification: Ordinary/Non-Hazardous Locations
  • Box Size: 4"
  • Capacity: 21 cubic in
  • Construction: Drawn
  • Depth: 1-1/2"
  • Product Height: 1.5 in
  • Product Length Depth: 4 in
  • Product Material: Steel
  • Product Weight: .46 lb
  • Product Width: 4 in
  • Side Knockouts: (8) 3/4 in
  • Standards Type: NEC/CEC

Installation & Operation

  1. Mount the extension ring in a suitable location with appropriate clearance and access for connections and service.
  2. Connect utility and load conductors following applicable guidelines and the manufacturer's instructions.
  3. Wire generator or power input according to the provided voltage/phase specifications and compatible capacity.
  4. Configure any available load management or control features as supported by the provided specifications.
  5. Test automatic transfer or operational functionality and verify proper performance before placing into service.
  6. Complete final inspection and follow ongoing maintenance practices appropriate to the product category.

Professional Applications

  • Residential electrical installations requiring additional box depth
  • Commercial building electrical systems
  • Industrial facility wiring projects
  • Electrical panel and junction box extensions
  • Professional electrical contractor installations
  • Building renovation and upgrade projects

Why Choose Crouse-Hinds Quality?

Crouse-Hinds delivers proven reliability through drawn steel construction and NEC/CEC compliance standards. The lightweight .46 lb design combines durability with easy handling, while the professional-grade materials ensure long-term performance in ordinary/non-hazardous electrical applications.

Manufacturer Resources

Product Specs

Area Classification:
Ordinary/Non-Hazardous Locations
Box Size:
4"
Capacity:
21 cubic in
Construction:
Drawn
Depth:
1-1/2"
Product Height:
1.5 in
Product Length Depth:
4 in
Product Material:
Steel
Product Weight:
.46 lb
Product Width:
4 in
Side Knockouts:
(8) 3/4 in
Standards Type:
NEC/CEC

Crouse-Hinds TP426 – Frequently Asked Questions

How fast can I get the Crouse-Hinds TP426 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 TP426 come with a warranty?
Absolutely. The Crouse-Hinds TP426 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 TP426?
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 TP426 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
!