The Hoymiles HM-300/400/-NT 1-in-1 microinverter is one of the most cost-effective module-level solar solutions, as it maximizes the PV production of your installation. With a maximum DC voltage of 60 volts, Hoymiles microinverters are a PV Rapid Shutdown Equipment and conforms with NEC-2017 and NEC-2020 Article 690.12 and CEC-2021 Sec 64-218. HM-300/400/600-NT is equipped with reactive power control and can meet the requirements of IEEE 1547, UL 1741, and CA Rule 21