Cut Sheet

QUALITY ENGINEERED FOR FULL
ELECTRICAL SYSTEM
PROTECTION
Allied IMC is lighter in weight but as strong as RIGID, and
is recognized for use in the same applications, including
all hazardous locations. Allied IMC is manufactured from
premium, work hardened steel combining electrical and
mechanical performance with ductility. Allied IMC
is resistant to impact and is easy to cut, bend
and join for smooth, continuous raceways and
fast wire-pulling.
Allied IMC is hot galvanized using Allied's patented in-line
Flo-Coat
®
process. This process combines zinc, a
conversion coating, and a clear organic polymer top-coat
to form a triple layer of protection against corrosion and
abrasion.
The interior of Allied IMC is coated with a highly corrosion-
resistant lubricating finish for easier wire-pulling. No need
to worry about damage to the conduit system even when
pulling through multiple 90° bends.
THE ALLIED IMC ADVANTAGE
Allied IMC has a larger internal diameter than RIGID
conduit to allow for easier fishing and wire-pulling. Allied
IMC is also more "rigid" than RIGID to provide superior
wiring protection in many applications. The National
Electrical Code recognizes Allied IMC for the same uses
as RIGID, including all hazardous (classified) applications.
Allied IMC uses the same threaded couplings and fittings
as RIGID conduit, and the 3/4" NPT threads (ANSI
B1.20.1) are also full cut and galvanized after cutting.
Color-coded end-cap thread protectors keep the threads
clean and sharp, and also help to provide instant trade
size recognition. Even sizes are color-coded orange,
1/2 trade sizes are yellow, and 1/4 trade sizes are green.
EMI SHIELDING
Allied IMC greatly reduces electromagnetic fields,
effectively shielding computers and sensitive electronic
equipment from the electromagnetic interference
caused by power distribution systems. For further
information, visit our website for a free download of the
GEMI (Grounding and ElectroMagnetic Interference)
analysis software and related research studies.
FULL CODES AND STANDARDS
COMPLIANCE
Allied IMC is listed to Underwriters Laboratories
Safety Standard UL 1242 and meets ANSI C80.6.
These standards have been adopted as Federal
Specifications in lieu of WWC-581-Type 2. IMC is
recognized as an equipment grounding conductor by
NEC Section 250-118. Documentation for compliance
with NEC Article 250 is also available in the
GEMI (Grounding and ElectroMagnetic Interference)
analysis software and related research studies
found at the www.alliedeg.com website.
U.S. Metric lb. kg in. mm in. mm ft. m
1/2 16 62 28.1 0.815 20.7 0.070 1.80 3500 1067.5
3/4 21 84 38.1 1.029 26.1 0.075 1.90 2500 762.5
1 27 119 54.0 1.290 32.8 0.085 2.20 1700 518.5
1-1/4 35 158 71.7 1.638 41.6 0.085 2.20 1350 411.8
1-1/2 41 194 88.0 1.883 47.8 0.090 2.30 1100 335.5
2 53 256 116.1 2.360 59.9 0.095 2.40 800 244.0
2-1/2 63 441 200.0 2.857 72.6 0.140 3.50 370 112.9
3 78 543 246.3 3.476 88.3 0.140 3.50 300 91.5
3-1/2 91 629 285.3 3.971 100.9 0.140 3.50 240 73.2
4 103 700 317.5 4.466 113.4 0.140 3.50 240 73.2
1
Outside diameter tolerances : +/- .005 in. (.13mm) for trade sizes 1/2 (16mm) through 1 (25mm)
+/- .0075 in. (.19mm) for trade sizes 1-1/4 (36mm) through 2 (53mm)
+/- 0.10 in (.25mm) for trade sizes 2-1/2 (63mm) through 4 (103mm).
2
Wall thickness tolerances: + 0.15 in. (.38mm) and - .000 for trade sizes 1/2 (13mm) through 2 (53mm)
+ 0.20 in. (.51mm) and -.000 for trade sizes 2-1/2 (63mm) through 4 (103mm).
NOTE: Length = 10 ft. (3.05m) with a tolerance of +/- .25 in. (6.35mm). NEMA Standard
Weights and Dimensions for Intermediate Metal Conduit
Allied IMC Specifications
Installation of IMC shall be in accordance
with the National Electrical Code and the UL
listing information. Allied IMC is listed in
category DYBY.
Master bundles conform to NEMA standard RN2.
SPECIFICATION DATA
Intermediate Metal Conduit shall be equal to that
manufactured by Allied Tube & Conduit
Corporation. IMC shall be hot galvanized steel
O.D. with an organic corrosion resistant I.D.
coating and shall be produced in accordance
with U.L. Safety Standard #1242 and ANSI
C80.6 and shall be listed by a nationally
recognized testing laboratory with follow-up
service. Threads shall be hot galvanized after
cutting. Where Kwik-Couple IMC is used it shall
also meet U.L. Safety Standard #514-B. It is
noted that these U.L. standards have been
adopted by the federal government and separate
military specifications no longer exist.
Trade Size
Designator
Approx. Wt. Per
100 Ft. (30.5M)
Nominal Outside
Diameter
1
Nominal
Wall
Thickness
2
Quantity In
Master Bundle
U.S. Metric lb. kg in. mm in. mm ft. m
2-1/2 63 441 200.0 2.857 72.6 0.140 3.50 400
122.0
3 78 543 246.3 3.476 88.3 0.140 3.50 300 91.5
3-1/2 91
629
285.3
3.971
100.9
0.140
3.50
250
76.3
4 103 700 317.5 4.466 113.4 0.140 3.50 200 61.0
Weights and Dimensions for Kwik-Couple IMC
1
Outside diameter tolerances : +/- .010 in. (.25mm)
2
Wall thickness tolerances : + .020 in. (.51mm) and -.000
NOTE: Length (w/coupling) = 10 ft. (3.05m) with a tolerance of +/- .25in. (6.35mm).
Quantity In
Master Bundle
Nominal
Wall
Thickness
2
Nominal Outside
Diameter
1
Approx. Wt. Per
100 Ft. (30.5M)
Trade Size
Designator
For more information, contact Allied at [phone],
or visit our website at www.alliedeg.com
© Allied Tube & Conduit Printed in U.S.A. ATC-L-1750-0608
• Allied Tube & Conduit • AFC Cable Systems
®
• Cope
®
Cable Tray • Power-Strut
®
Metal & Fiberglass Framing
Allied Tube & Conduit, AFC Cable Systems, Cope, Power-Strut, and Tyco are trademarks or registered trademarks of Tyco and/or its affiliates in
the United States and in other countries. All other brand names, product names, or trademarks belong to their respective owners.
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