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Manufacturer Resources
Product Specs
- Sub Brand Label:
- Steel City
- Product Group:
- Conduit & Fittings
- Selling Unit Of Measure:
- each
- Product Type:
- Electrical fittings
- Product Material:
- Zinc Die Cast
- Department:
- Electrical
- Country Of Origin:
- India (IN)
- Standards:
- UL e17583
- Product Subgroup:
- Conduit Bodies
Steel City NC301-1 – Frequently Asked Questions
1) What cable does the Steel City NC301 3/8 inch clamp connector work with?
The NC301 is a 3/8 inch clamp-type connector for NM (nonmetallic sheathed) and SC cable. The clamp saddle grips the cable jacket and the threaded hub with locknut secures it into a knockout, so it's the fitting you use to land Romex into a metal box, panel, or enclosure.
2) Can I buy the Steel City NC301 in bulk for a rough-in job, or just one at a time?
Four pack sizes are offered: single (NC301-1), 5 per bag (NC301M5), 10 per bag (NC301-10), and 100 per box (NC301-100CP). Contractors wiring a whole floor usually take the 100 box; a property manager fixing one panel penetration takes the single.
3) Does a 3/8 inch NM clamp connector go in a 1/2 inch knockout?
No. The NC301 is a 3/8 inch trade size fitting and seats in a 3/8 inch knockout. Standard sheet metal boxes and panels are punched with 1/2 inch knockouts having a concentric 3/8 inch ring, so you knock out only the smaller ring for this connector. If the 1/2 inch is already open, you need a 1/2 inch NM connector or a reducing washer set instead.
4) What is the NC301 connector body made of?
Zinc die cast. That's a dry-location indoor fitting material, fine for panel and box terminations in finished or framed interior work, not something to hang outdoors or in a wet location.
5) Is a locknut included with the Steel City NC301 connector?
Clamp connectors of this style ship as a complete fitting with the clamp saddle, screws, and locknut, and the NC301 is sold each, so one purchase unit is one usable connector. Nothing further is required beyond the box or panel knockout itself.
6) Where is the Steel City NC301 connector manufactured?
Country of origin is India. Worth knowing if you're bidding a job with domestic-sourcing requirements on the material submittal.
How fast can I get the Steel City NC301-1 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 Steel City NC301-1 come with a warranty?
Absolutely. The Steel City NC301-1 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 Steel City NC301-1?
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 Steel City NC301-1 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.