Intermediate Metal Conduit

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

Intermediate Metal Conduit – IMC Steel Conduit CVL®
Standard ANSI C 80.6/ UL 1242 (USA)
Product Code
Size (inch)
OD (mm)
Thickness (mm)
Length (mm)
Pre – Galvanized Steel – Class 3(*)
Hot – dip Galvanized Steel – Class 4 (**)
IMC12
IMC12NN
1/2
20.70
1.79
3030
IMC34
IMC34NN
3/4
26.14
1.90
3030
IMC100
IMC100NN
1
32.77
2.16
3025
IMC114
IMC114NN
1 1/4
41.59
2.16
3025
IMC112
IMC112NN
1 1/2
47.81
2.29
3025
IMC200
IMC200NN
2
59.93
2.41
3025
IMC212NN
2 1/2
72.56
3.25
3010
IMC300NN
3
88.29
3.25
3010
IMC312NN
3 1/2
100.86
3.25
3005
IMC400NN
4
113.43
3.25
3005
 

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).

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