Intermediate Metal Conduit
IMC, short for Intermediate Metal Conduit, is a steel raceway of circular cross section, which is threaded, and nominally 10′ long. The CVL – IMC steel is manufactured according to UL 1242 and ANSI C80.6, Electrical Intermediate Metal Conduit Steel
Product Details
Product Overview
◆ Standard: ANSI C 80.6 / UL 1242 (USA)
◆ Material:
– Pre – Galvanized Steel – Class 3
– Hot – dip Galvanized Steel – Class 4
Product Details
IMC, short for Intermediate Metal Conduit, is a steel raceway of circular cross section, which is threaded, and nominally 10′ long. The CVL – IMC steel is manufactured according to UL 1242 and ANSI C80.6, Electrical Intermediate Metal Conduit Steel.
Conduit IMC is designed as a thin-wall alternative to RSC (Rigid Steel Conduit). IMC (Intermediate Metal Conduit), as its name implies, is lighter than RSC, weighs about one-third less than RSC but it has a larger interior diameter. On the other hand, IMC is heavier than EMT (Electrical Metallic Tubing).
IMC conduit is interchangeable with RSC. According to NEC Article 342 and 344, we can use IMC wherever Rigid Metal Conduit is allowed. Both two electrical conduit pipes use the same conduit fittings.
Reference and Packing
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Intermediate Metal Conduit – IMC Steel Conduit CVL®
Standard ANSI C 80.6/ UL 1242 (USA) |
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Product Code |
Size (inch)
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OD (mm)
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Thickness (mm)
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Length (mm)
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Pre – Galvanized Steel – Class 3(*) |
Hot – dip Galvanized Steel – Class 4 (**)
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IMC12 |
IMC12NN |
1/2 |
20.70 |
1.79 |
3030 |
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IMC34 |
IMC34NN |
3/4 |
26.14 |
1.90 |
3030 |
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IMC100 |
IMC100NN |
1 |
32.77 |
2.16 |
3025 |
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IMC114 |
IMC114NN |
1 1/4 |
41.59 |
2.16 |
3025 |
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IMC112 |
IMC112NN |
1 1/2 |
47.81 |
2.29 |
3025 |
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IMC200 |
IMC200NN |
2 |
59.93 |
2.41 |
3025 |
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IMC212NN |
2 1/2 |
72.56 |
3.25 |
3010 |
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IMC300NN |
3 |
88.29 |
3.25 |
3010 |
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IMC312NN |
3 1/2 |
100.86 |
3.25 |
3005 |
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IMC400NN |
4 |
113.43 |
3.25 |
3005 |
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Tolerance – Outside Diameter: ± 0.3 mm.
– Thickness: ± 10%.
– Length: ± 6.4 mm.
(*) The average thickness of the zinc coating layer for Pre-galvanized steel – Class 3 is ≤ 20 microns.
(**) The thickness of the zinc coating layer for Hot-dip galvanized steel Class 4 is ≥ 45 microns (ASTM A123).