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TayMac CP450Z Weatherproof Metal Closure Plug, 1/2 in. NPT, Bronze
The TayMac CP450Z is a weatherproof metal closure plug designed to seal unused 1/2 in. NPT openings on outdoor electrical boxes and weatherproof enclosures. Constructed from cast metal and finished in bronze, this closure plug is UL Listed and ships in a convenient polybag of 4, making it easy for electricians to keep a supply on hand for job-site sealing needs. Its low-profile 0.31 in. depth allows it to sit flush within the hub opening while providing a dependable barrier against moisture, dust, and debris.
Key Features
- Trade Size: 1/2 in. NPT threaded body fits standard weatherproof box and enclosure hub openings.
- Durable Construction: Cast metal body resists impact and weathering for long-term outdoor use.
- Finish: Bronze finish adds corrosion resistance and coordinates with common weatherproof device finishes.
- Compact Profile: 0.31 in. depth allows the plug to sit flush within the hub opening without protruding.
- Convenient Packaging: Supplied in a polybag of 4 for easy handling, stocking, and job-site distribution.
- Listed for Safety: UL Listed for verified performance in weatherproof electrical applications.
Certifications & Compliance
- UL Listed
Technical Specifications
- Product Material: Cast Metal
- Product Color: Bronze
- Product Depth: 0.31 in
- Certified Listed: UL Listed
Typical Applications
- Weatherproof Electrical Boxes and Enclosures
- Sealing Unused Conduit Hub Openings
- Outdoor and Wet-Location Electrical Installations
- Commercial and Residential Exterior Wiring
- New Construction and Retrofit Electrical Projects
Why TayMac?
TayMac builds weatherproof electrical components engineered for dependable outdoor performance. The CP450Z closure plug's cast metal construction, bronze finish, and UL Listing make it a practical choice for electricians who need a secure, reliable seal for unused conduit hub openings. Keep a polybag of 4 on the truck for fast, code-conscious closures on any weatherproof electrical job.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- TAYM-20260916
- Product Material:
- Cast Metal
- Product Color:
- Bronze
- Product Depth:
- 0.31 in
- Certified Listed:
- UL Listed
- Product Type:
- Closure Plug
- Department:
- Electrical
- Product Subgroup:
- Weatherproof Covers
- Product Group:
- Wiring Devices
TAYMAC CP450Z – Frequently Asked Questions
1) Will the TayMac CP450Z plug thread into a 1/2 inch hub on my weatherproof box?
Yes. The CP450Z is a 1/2 in. NPT threaded closure plug, so it screws into any standard 1/2 in. NPT hub opening on a weatherproof box or enclosure. Use it to seal hubs you are not running conduit into.
2) Is the CP450Z closure plug UL Listed for outdoor wet location boxes?
The CP450Z carries a UL Listing and is built for weatherproof electrical boxes and enclosures, including outdoor and wet-location wiring. That is what lets an inspector accept it as the closure on an unused hub.
3) Can I use a closure plug instead of leaving a knockout open on an outdoor box?
That is exactly the job. Any unused 1/2 in. NPT hub on a weatherproof enclosure needs to be closed to keep moisture, dust, and debris out, and the CP450Z threads in to do it with a UL Listed metal part rather than tape or caulk.
4) Will a closure plug stick out past the face of the box and interfere with a weatherproof cover?
Depth on the CP450Z is 0.31 in., so it sits low in the hub opening rather than projecting out where a hinged or flip-lid cover would hit it.
5) Is this a plastic plug or metal? I need something that holds up on an exterior wall.
Cast metal body, not plastic. For exposed exterior boxes that get hit by ladders, hose spray, and UV, the cast metal construction is the reason to pick this over a snap-in plastic filler.
6) How many closure plugs come in a pack of TayMac CP450Z?
They ship in a polybag of 4. One pack covers a multi-gang weatherproof box with several unused hubs, or keeps spares on the truck for punch-list closures.
7) What finish is the CP450Z, and will it match bronze weatherproof covers?
Bronze. It coordinates with the bronze weatherproof covers and boxes commonly used on masonry and dark-trim exteriors, so the sealed hub does not read as a bright spot on the wall.
8) What is the manufacturer part number for this bronze 1/2 inch closure plug?
TayMac CP450Z. That number covers the 1/2 in. NPT cast metal plug in bronze, sold four to a bag.
How fast can I get the TAYMAC CP450Z 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 TAYMAC CP450Z come with a warranty?
Absolutely. The TAYMAC CP450Z 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 TAYMAC CP450Z?
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 TAYMAC CP450Z from ZenSupply?
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