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This conduit fill chart is used to determine how many wires can be safely put into non-PVC conduit tubing or pipe. Each row going across is a different conduit size and type of metal conduit, either Electrical Metal Tubing (EMT), Intermediate Metal Conduit (IMC), Galvanized Rigid Steel Pipe (rigid metal conduit, RMC), or Flexible Metal Conduit (RMC). Each column (going up and down) is a different gauge of wire, either AWG or MCM. The results show the allowable number of wires for each size/type of conduit and wire, based on the 2020 NEC® code.
To jump to the section of the Conduit Fill Chart for your gauge of wire, select a wire size.
Above information referenced from Table C.1, Table C.3, Table C.4, and Table C.9 in the 2020 NEC® (National Electric Code®). For more information on the following types of conduit, please see the table listed below in the Appendix C of the National Electric Code® (NEC®) of 2020.
Electrical Non-Metallic Tubing (ENT) -- Table C.2 Liquidtight Flexible Non-Metallic Conduit (Type LFNC-A) -- Table C.5 Liquidtight Flexible Non-Metallic Conduit (Type LFNC-B) -- Table C.6 Liquidtight Flexible Non-Metallic Conduit (Type LFNC-C) -- Table C.7 Liquidtight Flexible Metallic Conduit (LFMC) -- Table C.8 Rigid PVC Conduit, Schedule 80 -- see our Rigid Schedule 80 PVC Conduit Fill Chart Rigid PVC Conduit, Schedule 40 -- see our Rigid Schedule 40 PVC Conduit Fill Chart Type A PVC Conduit -- Table C.12 Type EB PVC Conduit -- Table C.13
If you have any other questions see the NEC® Code Book or ask an Elliott Electric Salesperson.
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Warning: When using this information to perform electrical work, call a licensed electrician or consult the NEC® for safety. All licensed electricians have passed examinations covering the National Electric Code®, know state and local building codes, and may carry insurance to cover damages.