Emt Pipe Capacity

Find the type of conduit that you want to use in table 4.

Emt pipe capacity.

Conduit cable fill chart this chart for conduit size for cable is based on the 2017 nec and uses common conduit types and wires. Each row going across is a different size and type of conduit either emt imc or galvanized pipe rigid metal conduit rmc. Trade size wire size thwn thhn conductor size awg kcmil 14 12 10 8 6 4 3 2 1 1 0 2 0 3 0 4 0 250 300 350 400 500 600 700 750 1 2 emt 12 9 5 3 2 1 1 1 1 1 imc 14 10 6 3 2 1 1 1 1 1 1 grc. This online conduit fill calculator is compatible with the us national electrical code nec.

Welcome to the conduit fill calculator website. This conduit fill table is used to determine how many wires can be safely put into non pvc conduit tubing or pipe. Typical conduit fill chart. Using electrical conduit is the required method of protecting electrical wires in exposed situations where nm cable cannot be used.

For example to use emt type conduit with the previously calculated total fill of 0 138 look in the emt column of table 4. The heavy duty steel conduit resists splitting kinking and flattening and is coated with zinc for corrosion resistance. The possible wire gauges go from 14 awg to 750 mcm and from conduit trade sizes of 1 2 inches to 4 inches. Inch conduit is the correct size for this application.

Emt rnc pvc 40 rnc pvc 80 rmc rigid grc imc ent flex lfmc rnc type db 60 rnc type eb 20. However inch emt has a maximum fill of 0 213 which is greater than the 0 138 calculated fill. Just select the conduit type and the wire insulation to get a quick table of conductor properties. The following is a typical conduit fill chart which shows data for different types of conduit such as emt conduit imc conduit and grc conduit.

Conduit fill tables nec table c conductor size awg kcmil thhn thwn size 14 12 10 8 6 4 3 2 1 1 0 2 0 3 0 4 0 250 300 350 400 500 600 750 2 emt 241 176 111 64 46 28 24 20 15 12 10 8 7 6 5 4 4 3 2 1 rmc 200 146 92 53 38 23 20 17 12 10 8 7 6 5 4 3 3 2 1 1. Allied conduit has an e z pull interior coating provides a smooth surface for faster wire pulling. If you re using electrical metal tubing emt conduit you ll see that the closest size that you need is a 1 in conduit which gives you a 39 fill. Inch emt has a maximum fill of 0 122 which is too small.

Electrical conduit whether it be rigid metal emt rigid plastic pvc or flexible metal fmc is limited as regards the maximum number of electrical wires that can be run inside the conduit. Each column going up and down is a different gauge of wire.