Classes A, B, C, D, G, and M. 1  Classes A â C permit operation of motor vehicles based on GVW rating and must be renewed every 5 years. 2  Classes D and G are valid for operation of a single motor vehicle with a GVW rating of 26,000 lbs. or less.
Electrical Metallic Tubing (EMT) Electrical metallic tubing (EMT), also commonly called thin-wall, is a listed steel raceway of circular cross section, which is unthreaded, and nominally 10â² long. 20â² lengths are also available. Covered by Article 358 of the NEC, EMT is available in trade sizes 1/2 through 4.
Rigid/IMC 2 in. Type SLB Conduit Body. EASLB Type aluminum conduit bodies are threaded and EASLB Type aluminum conduit bodies are threaded and for use with threaded rigid/IMC conduit. The conduit outlet bodies are designed to act as an elbow between service entrance and vertical entrance head conduit runs.