Connection switchgear for the Huawei L1 inverter, automatic transfer of the reserve enables constant power supply to the loads of the single-phase emergency circuit. The switchgear is compatible with Huawei L1 series inverters. Thanks to the switchgear with automatic change-over, the emergency-powered circuits will be powered both when the network is working properly, as well as at the time of its failure. The energy to power the emergency circuits can come both from the energy storage connected to the inverter, as well as from instantaneous energy produced from photovoltaic modules.