Romex ® - Southwire: The Official Home of Romex ® Wire
With Real Romex®, Pulling is Believing
The History of Romex®
The Romex® brand of Non-Metallic Building Wire (“NM”) originated in 1922 with its development by the former Rome Wire Company, a predecessor to General Cable Corporation. On September 5, 2001, Southwire purchased the electrical building wire assets of General Cable Corporation. One of the most valuable assets purchased by Southwire in that acquisition was the Romex brand of Type NM cable. The Romex brand of Type NM cable has now been promoted and sold by Southwire and its predecessors for 88 years and Southwire considers its Romex trademark to be one of its most valuable brand names. Romex is a federally registered trademark and we vigorously monitor and protect the use of the Romex brand in North America and around the world. Don’t just look for generic NM cable, look for Southwire’s Romex® brand Type NM cable!
Romex® SIMpull® cable. The Next Generation of Romex® brand cable.
At Southwire, we’re committed to making things easier, both for our customers and those they serve. That’s why when we asked you, “How should we improve Romex?” we listened and found the answer to be quite simple.
Romex SIMpull cable is the culmination of extensive lab testing and field research conducted through Southwire’s D.B. Cofer Technology Center, one of the world’s leading research and development centers for wire and cable technology. In the beginning, our goal was to simply improve the end user experience of Romex, improving the installation process without raising costs. Where we ended is a revolutionary new grade of Romex – Romex SIMpull. With the application of Southwire’s SIM Technology® Romex SIMpull pulls 50% easier, is tear resistant, reduces burn-through and strips easier.
Romex Wire Applications
Romex® SIMpull® Type NM-B cable may be used for both exposed and concealed work in normally dry locations at temperatures not to exceed 90°C (with ampacity limited to that for 60°C conductors) as specified in the National Electrical Code. NM-B cable may be run in air voids of masonry block or tile walls where such walls are not subject to excessive moisture or dampness. Voltage rating for NM-B cable is 600 volts.
Romex® SIMpull® Type NMD90 cable may be used for both exposed work in dry locations or concealed work in dry or damp locations. The maximum allowable conductor temperature is 90°C. The minimum recommended installation temperature is minus 25° C for two-conductor cables, and minus 10°C for three-conductor cables (with suitable handling procedures). Material should be properly stored above 0°C for 24 hours prior to installation. The maximum voltage rating for all intended applications is 300 volts. Consult the Canadian Electrical Code for further information related to applications.