UNIRAC lands UL with the largest number of racking & inverter combinations in the industry.

By adding UL 3741 to our entire portfolio and partnering with 8 different inverter manufacturers, the ability to complete solar installations nationwide has never been easier. UL 3741 has opened the doors for a new standard of “PV Hazard Control” that meets the National Electrical Code (NEC) rapid shutdown requirements without module-level rapid shutdown. NEC provides two rapid shutdown options for rooftop PV systems: Module-level shutdown with MLPE or UL 3741 PV hazard control system listing.