Unirac is NXT to Residential UL 3741

Intertek has posted the updated Photovoltaic Hazard Control listings for Unirac on their directory, and it includes a few new racking models.

Included in the listing are existing racking models, which are exclusive to flat roof solutions, but newly added to the list are NXT Umount and SolarMount, with callouts for both residential and commercial.

The full list of new addendums:

• UL 3741 PV Hazard Control Installation Addendum for NXT Umount Residential Roof Applications PUB2024MAY07
• UL 3741 PV Hazard Control Installation Addendum for NXT Umount Commercial Roof Applications PUB2024APR26
• UL 3741 PV Hazard Control Installation Addendum for SolarMount Residential Roof Applications PUB2024MAY07
• UL 3741 PV Hazard Control Installation Addendum for SolarMount Commercial Roof Applications PUB2024APR26

We don’t know yet what inverters will be listed with these racking systems, or exactly what installation will look like, but it’s safe to assume that we can expect something similar to Ironridge and Chiko’s listings.

Chiko is the only company so far to have listings for a sloped-roof racking that includes commercial inverters, but it sounds like Unirac will be next to the party. This will be immensely helpful for solutions like agriculture, where there’s often large, accessible, sloped roofs that could accommodate roof-mounted inverters.

This is as yet unannounced by Unirac, so the cited documentation in the listing is not available publicly. I imagine we’ll see more details in the coming weeks. Update: Unirac has now officially announced these listings.

If you want to know the details of the yet-to-be-released documents once they’re available, make sure to subscribe to the newsletter at UL3741.com. While you’re there, you can explore all current UL 3741 listings, cross-referenced with compatible inverters and array-level rapid-shutdown systems.