Building & Fixture Wire

IEWC's selection of building and fixture wire consists of Types XHHW-2, THHN/THWN-2, and TFFN along with Canadian constructions such as RW90, RWU90, and T90. These come in numerous constructions and are suitable for use in general purpose building wiring, fixture wire, machine tool wiring, or appliance wiring.

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Building Wire Guide - THHN vs Others

In the world of building wire, there are several common choices available that at first appear quite similar. Learn more about some of the most common of them; THHN, THWN, Romex and XHHW with IEWC's Technical Guide.