The IQ System Controller 3 from Enphase is the power and control centre of your Enphase storage system. All required components such as gateway, IQ relay and backup switching device are integrated in the central unit. Depending on the application and expansion stage of the system, only the fuse elements for the inverter, storage system and all load circuits need to be added. In the event of a power failure, the defined backup circuits are switched off and continue to be supplied by the battery and PV. The integrated mobile radio modem also guarantees secure data transfer to the Enphase portal in any situation.