Crouse-Hinds Steel Masonry Box...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$13.60
Crouse-Hinds Steel Masonry Box 2-1/2" Deep x 3-3/4" High with Multiple Knockouts

Crouse-Hinds Steel Masonry Box 2-1/2" Deep x 3-3/4" High with Multiple Knockouts

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Model: TP684

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

$13.60
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Crouse-Hinds Steel Masonry Box 2-1/2" Deep x 3-3/4" High with Multiple Knockouts

Professional masonry installation solution for electrical applications

The Crouse-Hinds Steel Masonry Box delivers reliable electrical enclosure performance for masonry installations with its robust 2-1/2" depth and 3-3/4" dimensions. Constructed from durable steel material and UL-Listed for safety compliance, this masonry box provides professional-grade protection for ordinary/non-hazardous locations with convenient knockout configurations for versatile wiring applications.

Professional Features & Benefits

  • 2-1/2" Deep Construction: Provides ample wiring space and accommodates standard electrical devices with proper depth clearance.
  • Steel Material Construction: Ensures long-lasting durability and reliable protection against physical damage in masonry applications.
  • Multiple Knockout Configuration: Features (2) 1/2 in and (2) 3/4 in side knockouts for flexible conduit entry options and installation versatility.
  • UL-Listed Certification: Meets rigorous safety standards for electrical enclosures, ensuring code compliance and professional installation confidence.
  • 3-3/4" Square Dimensions: Standard sizing provides compatibility with common electrical devices and mounting requirements.
  • Ordinary Location Rating: Approved for non-hazardous environments, suitable for most residential and commercial electrical applications.
  • NEC/CEC Standards Compliance: Meets National Electrical Code and Canadian Electrical Code requirements for professional electrical installations.

Technical Specifications

  • Area Classification: Ordinary/Non-Hazardous Locations
  • Depth: 2-1/2"
  • Product Height: 3.75 in
  • Product Material: Steel
  • Product Width: 3.75 in
  • Side Knockouts: (2) 1/2 in, (2) 3/4 in
  • Standards Type: NEC/CEC

Professional Applications

  • Residential electrical installations in masonry walls
  • Commercial building electrical systems
  • Multi-unit residential properties
  • Professional office electrical infrastructure
  • Retail establishment electrical installations
  • Light industrial electrical applications
  • Educational facility electrical systems

Why Choose Crouse-Hinds Quality?

Crouse-Hinds delivers proven reliability through UL-Listed certification and robust steel construction designed for long-term performance. The NEC/CEC standards compliance ensures professional installation confidence, while the durable steel material provides dependable protection for electrical connections in masonry applications.

Manufacturer Resources

Product Specs

Area Classification:
Ordinary/Non-Hazardous Locations
Product Height:
3.75 in
Product Material:
Steel
Product Width:
3.75 in
Side Knockouts:
(2) 1/2 in, (2) 3/4 in
Standards Type:
NEC/CEC
Product Depth:
2-1/2"
Department:
Electrical
Product Type:
Switch Box
Product Subgroup:
Electrical Boxes
Product Group:
Boxes & Enclosures

Crouse-Hinds TP684 – Frequently Asked Questions

1) What size box do I need for a single receptacle versus a two-gang switch bank in a masonry wall?
The Crouse-Hinds TP masonry box comes in one-gang (TP682), two-gang (TP683), and three-gang (TP684). Pick the gang count to match the number of devices going in that opening: one gang for a single receptacle or single switch, two gangs for a pair of switches side by side, three gangs for a three-switch bank. The box body is the same 2-1/2 inch depth and 3.75 inch height across all three; only the width grows with the gang count.
2) Will a 2-1/2 inch deep masonry box give me enough room for a GFCI receptacle?
Depth is the spec that decides it, and the Crouse-Hinds TP masonry box runs 2-1/2 inches deep, which is the deeper of the two common masonry box depths. A GFCI or a smart dimmer with a bulky body needs that extra room behind the yoke, and 2-1/2 inches gives you it along with space to fold conductors. If you are working in a thin masonry veneer where you cannot bury 2-1/2 inches, you need a shallower box instead, because the depth here is fixed at 2-1/2 inches on all three gang sizes.
3) What conduit sizes can I run into a Crouse-Hinds TP masonry box?
Side knockouts are (2) 1/2 inch and (2) 3/4 inch, so you can bring in 1/2 inch or 3/4 inch conduit or connectors without punching anything. That covers a 1/2 inch EMT home run with a 3/4 inch feed through, or two 1/2 inch runs in and out. Knock out only what you use; unused openings stay closed.
4) Can I install a Crouse-Hinds TP masonry box in a car wash bay or a paint room?
No. The TP masonry box is rated for ordinary, non-hazardous locations only. Classified areas, including spaces with flammable vapors or combustible dust, need a box built and listed for that classification. If your drawing calls out a Class I or Class II location, this is the wrong enclosure.
5) Is a steel masonry box the right choice for a block or brick wall, or should I use a nonmetallic box?
A masonry box like the Crouse-Hinds TP is made to sit inside the cell of a concrete block or between brick courses, so its body is the right shape and the 3.75 inch height lines up with standard block coursing. It is steel, which takes the abuse of being grouted in and gives you a metal raceway path if you are running EMT or rigid. Nonmetallic boxes are for nonmetallic-sheathed cable in stud framing, not for grouting into masonry. If you are running conduit into block, this is the box type; if you are pulling NM cable through wood studs, use a device box instead.
6) Does the Crouse-Hinds masonry box meet code for a commercial job in the US and Canada?
The TP masonry box is built to NEC and CEC standards, so it can be specified on either side of the border. That is what an inspector or a spec writer is looking for on a commercial or institutional job when the drawing calls for a code-compliant masonry outlet box.
7) What are the outside dimensions of the Crouse-Hinds TP masonry box?
Depth is 2-1/2 inches and height is 3.75 inches, with width also 3.75 inches on the one-gang TP682. Going to the two-gang TP683 or three-gang TP684 keeps the same depth and height and adds width for each additional device, so your rough opening in the block only has to grow horizontally.
8) Can I standardize on one masonry box across a whole building with mixed one, two, and three device openings?
Yes, and that is the practical reason to buy the TP family together. TP682, TP683, and TP684 share the same 2-1/2 inch depth, the same 3.75 inch height, the same steel body, and the same (2) 1/2 inch plus (2) 3/4 inch side knockouts. Your masons cut one coursing detail, your electricians use one conduit size mix, and only the gang count changes opening to opening. For a property manager or MRO stockroom, that means one depth of box on the shelf instead of three.
9) Which Crouse-Hinds part number do I order for a three-gang masonry box?
TP684 is the three-gang. TP683 is the two-gang and TP682 is the one-gang. Gang count is the only thing you specify on the TP masonry box; depth, height, material, and knockout pattern are the same across all three, so there is no separate depth or knockout option to call out on the order.
How fast can I get the Crouse-Hinds TP684 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 TP684 come with a warranty?
Absolutely. The Crouse-Hinds TP684 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 TP684?
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 TP684 from ZenSupply?
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