INTERMEDIATE STEEL CONDUIT (IMC)
Descriptions
- Intermediate Metal Conduit (IMC) is a lighter-weight, thinner wall alternative to rigid steel conduit. IMC is a listed threaded steel raceway of circular cross section with a coupling which can be either a standard straight-tapped conduit coupling or the integral type.
- IMC has a reduced wall thickness, when compared to RSC, and weighs about one-third less than RSC. The both sizes, outside and inside have a galvanized coating for corrosion protection. IMC is interchangeable with galvanized rigid steel conduit. Both have threads with a 3/4-inch per foot taper, use the same couplings and fittings; have the same support requirements; and are permitted to be used in the same locations.
Application
1P’s Intermediate Conduit (IMC), when combined with Elbows, Couplings and Nipples (ECN), create an Electrical Raceway System recognized as an equipment grounding conductor which provides shielding from Electromagnetic Interference (EMI).IMC conduit is a raceway solution which allows for future wiring changes and provides excellent mechanical protection to conductors and cables.
EMI Shielding
1P’s IMC is very effective in reducing the effects of electromagnetic field levels for encased power distribution circuits, shielding computers and other sensitive electronic equipment from
the effects of electromagnetic interference.
Standards Compliance
1P’s IMC is manufactured in accordance with ANSI C80.6 and Underwriters Laboratories Safety Standard UL1242.
Features
- Material: Carbon Steel.
- Pre-Galvanized or Hot-dip galvanized for excellent corrosion resistance.
- High strength ductile steel for long life and easy bending.
- Smooth, continuous raceways for fast wire pulling.
- PVC End Cap to protect threads.
- Complied to Safety Standard UL1242.
- Manufactured in accordance with ANSI C80.6.
- Thickness of zinc coating of Hot-dip galvanized IMC: as per ASTM A123/ 123M Standard.
- Thickness of zinc coating of Pre-galvanized IMC ≥ 15µ (one-side).
- Hot-dip galvanized IMC is vailable in trade sizes from 1/2” to 4”.
- Pre-galvanized IMC is available in trade size from 1/2” to 2”.
Weight and Dimensions
|
Size (Inch)
|
Part Number
|
Outside Diameter (mm)
|
Tolerance Outside diameter (mm)
|
Wall Thickness (mm)
|
Nominal Weight (kgs/m)
|
Length Without Coupling (mm)
|
|
Pre-Gal.
|
Hot-Dip Gal.
|
|
1/2”
|
IMC-050
|
IMC-050H
|
20.70
|
±
|
0.2
|
1.79
|
0.84
|
3030
|
|
3/4”
|
IMC-075
|
IMC-075H
|
26.26
|
±
|
0.2
|
1.90
|
1.14
|
3030
|
|
1”
|
IMC-100
|
IMC-100H
|
32.77
|
±
|
0.3
|
2.16
|
1.63
|
3025
|
|
1-1/4”
|
IMC-125
|
IMC-125H
|
42.00
|
±
|
0.3
|
2.16
|
2.10
|
3025
|
|
1-1/2”
|
IMC-150
|
IMC-150H
|
47.82
|
±
|
0.3
|
2.29
|
2.57
|
3025
|
|
2”
|
IMC-200
|
IMC-200H
|
59.90
|
±
|
0.3
|
2.41
|
3.42
|
3025
|
|
2-1/2”
|
|
IMC-250H
|
73.00
|
±
|
0.4
|
3.25
|
5.59
|
3010
|
|
3”
|
|
IMC-300H
|
88.30
|
±
|
0.4
|
3.25
|
6.82
|
3010
|
|
4”
|
|
IMC-400H
|
113.40
|
±
|
0.4
|
3.25
|
8.84
|
3005
|
Tolerance
- Wall Thickness: ±5%
- Length: ±6.4mm