Different parts of your solar system need different types of wire. Using the wrong kind can fail inspection, create fire risk, or just not fit where it needs to go.
What we stock:
- PV wire – Connects panel to panel and panel to combiner. UV-rated, weather-resistant, built for direct sun exposure.
- USE-2 – For home runs from your combiner box to the charge controller. Also rated for wet locations and direct burial.
- THHN – For conduit runs inside buildings or from the inverter to the main panel.
- Tray cable (TC) – Multi-conductor assembly in one jacket. Great for cable trays, direct burial, or runs between buildings on a messenger wire. Fewer conduits, faster pulls.
- Large gauge battery cable – Connects batteries together and from the bank to your inverter.
Need a custom length? We'll hand cut and crimp the right wire to your specs using our UL listed crimping system and glue-filled heat shrink. Custom solar panel cables are always welcome – call us with what you need.
Need tools to crimp and cut on site? Check out our solar tool page.
Not sure which wire type your inspector wants to see? Call us at 1-800-766-7644 – we've been running solar wire since 2002.
Locally owned and operated in Colorado since 2002.
