IMC Conduit (Intermediate Metal Conduit)

Steel Conduit

IMC is a medium-wall steel electrical conduit, thicker and stronger than EMT but lighter than RSC. Suited to outdoor work, it shields power and signal cables from impact and physical damage, with threaded ends for couplings and fittings.

IMC Conduit (Intermediate Metal Conduit)

Available from 1/2 in. to 4 in. for a wide range of applications, adding safety, order and stability to the wiring system.

Size and Weight
Conduit sizes	:	½, ¾, 1, 1¼, 1½, 2, 2½, 3, 3½ and 4 in.
Standard length	:	3,050 mm, with a tolerance of ±6 mm depending on conduit size
Wall Thickness	:	Approx. 1.79-4.06 mm depending on conduit size
Conduit weight	:	Minimum weight per 10 lengths with couplings is approx. 25.4-296.1 kg depending on conduit size
Standards	:	Comply UL 1242 / Comply ANSI C80.6 / TIS 770-2567

Size Table

IMC Conduit (Intermediate Metal Conduit) Size Table

Scroll the table sideways to see all data

Size		Outside Diameter (mm)		Wall Thickness (mm)		Length without Coupling (mm)		Min. Weight per 10 Lengths with Couplings (kg)
in.	mm	min	max	min	max	Nominal	Tolerance	Min. Weight per 10 Lengths with Couplings (kg)
½"	16	20.57	20.83	1.79	2.16	3,030	±6	25.4
¾"	21	26.01	26.26	1.90	2.29	3,030		34.6
1"	27	32.54	32.89	2.16	2.54	3,025		49.9
1¼"	35	41.40	41.78	2.16	2.67	3,025		64.3
1½"	41	47.52	48.01	2.29	2.79	3,025		79.1
2"	53	59.74	60.12	2.41	2.92	3,025		105.2
2½"	63	72.31	72.82	3.56	4.06	3,010		186.2
3"	78	88.04	88.54	3.56	4.06	3,010		229.0
3½"	91	100.61	101.12	3.56	4.06	3,005		263.0
4"	103	113.18	113.69	3.56	4.06	3,005		295.1

IMC Conduit (Intermediate Metal Conduit) Features

Made from high-quality steel with a durable medium-thick wall for applications that need more protection than EMT.
Zinc-coated inside and out for better corrosion resistance and a lower chance of rust.
Both ends are threaded for a tight connection to couplings and fittings.
Shields power and signal cables from impact and physical damage, improving electrical system safety.
Available from 1/2 in. to 4 in.; diameter, wall thickness and weight vary by size.
Suited to indoor electrical installations, commercial buildings, factories and areas that need strong wire protection.
Standards: Comply UL 1242 / Comply ANSI C80.6 / TIS 770-2567

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How to Use

Use to carry power and signal cables, protecting them from physical damage and keeping the wiring system organized.
Measure the run and choose a conduit size that suits the number, size and type of wires before installing.
Use couplings, connectors and fittings made for IMC conduit for strong, safe connections.
Install according to engineering practice and the applicable electrical standards.