Types of Steel Raceways

Steel conduit has been in use as a “raceway system” for electrical conductors since the early 1900s. The strength of steel makes galvanized steel rigid conduit, intermediate metal conduit and electrical metallic tubing the wiring methods recognized as providing superior mechanical protection to the enclosed wire conductors. Additionally, a properly installed metal raceway system is recognized by the National Electrical Code® (NEC) as an equipment grounding conductor. The basic types of steel raceways in use today are steel rigid metal conduit (RMC), intermediate metal conduit (IMC) and electrical metallic tubing (EMT).

Electrical Metallic Tubing (EMT)

Learn more about this threadless thin-wall steel raceway.


Intermediate Metal Conduit (IMC)

Get the details on this lighter-weight alternative to rigid metal conduit.


Rigid Metal Conduit (RMC)

Find complete specs on the raceway that is the benchmark for severe physical protection.