The Huawei Backup Box-B1 for single-phase residential networks ensures power supply even in the event of a power outage. In conjunction with the M1 inverter series, the backup unit enables emergency operation in case of network failure. The installation and operation of the Backup Box for photovoltaic systems is very straightforward, as the device communicates directly with the inverter via digital input.

The installation is simple and safe, while the device is weather-resistant and environmentally resilient according to the IP65 standard. It can operate within a temperature range of -20°C to +45°C, making it suitable for almost any installation. The dimensions of 400 x 350 x 130 mm are compact, ensuring that there are no space issues. The total weight of the device is 11 kg.

General specifications of the Huawei Smart Backup Box-B1:

• Operating temperature range: -20 to +45 °C
• Relative humidity during operation: 0% RH to 100% RH
• Dimensions (W*H*D): 400 x 350 x 130 mm
• Weight: 11 kg
• Protection class: IP 65

AC output (connected to the grid):

• Grid connection: three-phase
• Operating voltage: 380V / 400V
• Grid frequency: 50Hz / 60Hz
• AC voltage range: 342V ~ 440V

AC output (backup):

• Load connection: single-phase
• Nominal voltage: 220V / 230V
• AC frequency: 50Hz / 60Hz
• Maximum apparent power: 3300VA
• Maximum output current: 15.2 A

AC input (inverter):

• Nominal voltage: 380V / 400V
• AC frequency: 50Hz / 60Hz
• Compatible inverters: SUN2000-/3/4/5/6/8/10KTL-M1