Two selectable models. Confirm your application before ordering to avoid the wrong . Product overview Two operation modes to match your system need Generator Type (Grid and Generator): functions as a gridconnected controller that automatically switches to a backup generator during a grid outage. Solar Primary Type (Solar and Grid): prioritizes solar energy for home loads and uses the grid only as backup. PC Level housing for reliability and long service life. DIN rail mount for compact, professional installation by an electrician. Why customers need this Maintain power continuity during outages: automatic transfer to a backup generator keeps essential circuits powered without manual intervention. Reduce electricity costs by maximizing onsite solar use when Solar Primary Type is selected. Simple integration into existing grid, generator, and solar PV systems thanks to straightforward switching logic and DIN rail form factor. Key benefits Automatic and reliable transfer between power sources to avoid interruptions to lights, refrigeration, and other essentials. Solarfirst control option to increase selfconsumption of PV generation and minimize grid usage. Rugged PC Level construction for stable operation and longterm durability. Spacesaving DIN rail installation enables neat, professional wiring in distribution panels. Function and compatibility Functions: automatic source selection and transfer between grid, generator, and solar depending on model chosen. Compatible with standard household and small commercial grid connections, backup generators, and solar PV systems where automatic source switching is required. Installation: DIN rail mount inside a distribution enclosure; installation and wiring should be completed by a qualified electrician. Performance and material PC Level enclosure for impact resistance and extended service life. Automatic switching logic designed to provide seamless transition between primary and backup sources to support continuous operation of critical loads. Practical applications Residential backup power: keep lights, refrigeration, and medicalsupporting equipment running by automatically switching to a standby generator when the grid fails. Solarfirst homes: maximize use of rooftop solar to reduce grid consumption while maintaining grid backup for times of low solar output. Small commercial sites or remote cabins: provide reliable automatic source selection where a generator and solar installation are used in combination with the grid. Ordering note Verify whether you need the Generator Type (Grid and Generator) or the Solar Primary Type (Solar and Grid) before to ensure compatibility with your system and intended operation.