The Huawei Backup Box for household networks ensures your loads are powered even in the event of a power outage. Combined with the L1 series (single-phase) inverters, the backup box allows for emergency power operation in case of network failure. Installation and operation of the Backup Box for solar systems is very simple. The device supports communication with the inverter simply through a digital input. The switching time is 1-2 seconds.

This device is only necessary if you want to use HUAWEI LUNA2000 batteries in emergency mode (off-grid) and to consume the stored energy only by a specific group of consumers, generically called vital (e.g., refrigerator, lighting, low-consumption electronic devices)