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1 INCH CONNECTOR,S-SCREW,DC, EMT
Manufacturer Resources
Product Specs
- Product Group:
- Conduit & Fittings
- Selling Unit Of Measure:
- each
- Product Material:
- Zinc Die Cast
- Department:
- Electrical
- Product Type2:
- EMT Conduit Fittings
- Product Subgroup:
- Connectors
- Product Type:
- Electrical metallic tubing EMT connectors
Steel City TC 221 SC – Frequently Asked Questions
1) What trade sizes does the Steel City set-screw EMT connector come in?
Steel City's die-cast set-screw EMT connector runs from 1/2 in up through 4 in: 1/2, 3/4, 1, 1-1/4, 2-1/2, 3 and 4 inch trade sizes. Part numbers follow the series, so 1/2 in is TC 221 SC, 3/4 in is TC 222 SC, 1 in is TC 223 SC, 1-1/4 in is TC224-SC-1, 2-1/2 in is TC 227 SC, 3 in is TC 228 SC and 4 in is TC 2210 SC.
2) Is this connector for EMT or for rigid conduit?
It is an EMT fitting only. The set-screw body grips the outside wall of electrical metallic tubing, so it takes unthreaded EMT at the conduit end. Rigid or IMC is threaded and needs a threaded coupling or a rigid-to-EMT combination fitting instead, not this part.
3) Are Steel City TC 22 series set-screw connectors rated for wet or outdoor locations?
No. Set-screw EMT connectors like the TC 22 series are dry-location fittings; the set-screw joint is not sealed against water. For damp, wet, or outdoor runs you want a raintight compression EMT connector instead.
4) What is the Steel City TC 22 connector made of, and does that matter for the job?
The body is zinc die cast. Die-cast zinc is the standard general-purpose choice for interior EMT work and is lighter and lower cost than a steel set-screw fitting. Where a job spec calls out steel fittings, or where the fitting takes mechanical abuse or is used in a concrete pour, a steel-bodied set-screw connector is the one to order.
5) How do I install a set-screw EMT connector into a box?
Cut and ream the EMT, slide the tube into the connector throat, and tighten the set screw down onto the tubing wall. The threaded nose goes through the box knockout and is secured with the locknut, so the fitting terminates the conduit at the enclosure. One connector handles one termination; you need one at each box entry.
6) Will a set-screw connector join two lengths of EMT together?
No. A connector terminates EMT at a box or enclosure, with a threaded nose and locknut. To splice two pieces of tubing mid-run you need a set-screw EMT coupling, which has a tube socket on both ends and no box thread.
7) Which size do I order for 1 inch EMT?
Order the 1 in trade size, part number TC 223 SC. EMT fittings are sized to the conduit trade size, not to the outside diameter, so 1 inch tubing takes the 1 inch connector with no adapter.
8) Do I buy these individually or in bags?
The selling unit is each. Beyond the standard singles there are packaged options in the smaller sizes: a 1/2 in 5-per-bag (TC221-SC-5) and single-bagged 1/2 in (TC221SC-1), 3/4 in (TC222SC-1), 1 in (TC223-SC-1) and 1-1/4 in (TC224-SC-1). For a rough-in with a high connector count, the bagged 1/2 in is the one that saves picking.
How fast can I get the Steel City TC 221 SC 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 TC 221 SC come with a warranty?
Absolutely. The Steel City TC 221 SC 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 TC 221 SC?
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product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the Steel City TC 221 SC from ZenSupply?
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