We will be performing maintenance on several web store related systems this weekend starting Friday, October 19th, at 9:00 PM ET and ending Sunday, October 21st at 9:00 PM ET. There may be brief outages and some store features may be unavailable periodically during this time. We regret any inconvenience this may cause.
Technical Info for Electrical Hook-Up / Building Wire
While the NFPA allows the use of MTW or THHN wire inside control panels, MTW is often preferred for its flexibility and easier handling. Type TFFN (stranded) wire is primarily used as fixture wire as specified by the National Electrical Code (NEC). Type THHN wire is intended for general purpose applications.