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Electrical Metallic Tube

Electrical Metallic Tube (EMT) provides a physical protection for cables and conductors. It is lighter in weight than RMC. The below table of Electrical Metallic Tube is in line with NEC.

ELECTRICAL METALLIC TUBE (EMT)
Trade Size Internal Diameter Total Area
100%
60% 1 Wire
53%
2 Wires
31%
Over 2 Wires
40%
mm in. mm2 in.2 mm2 in.2 mm2 in.2 mm2 in.2 mm2 in.2
½15.80.6221960.3041180.1821040.161610.094780.122
¾20.90.8243430.5332060.3201820.2821060.1651370.213
126.61.0495560.8643340.5182950.4581720.2682220.346
1 ¼35.11.3809681.4965810.8985130.7933000.4643870.598
1 ½40.91.6101,3142.0367881.2226961.0794070.6315260.814
252.52.0672,1653.3561,2992.0141,1471.7796711.0408661.342
2 ½69.42.7313,7835.8582,2703.5152,0053.1051,1731.8161,5132.343
385.23.3565,7018.8463,4215.3083,0224.6881,7672.7422,2803.538
3 ½97.43.8347,45111.5454,4716.9273,9496.1192,3103.5792,9804.618
4110.14.3349,52114.7535,7138.8525,0467.8192,9524.5733,8085.901

Conduit is able to contain an allowable fill percent. Hence, a conduit fill calculation is provide here.