Huawei | LUNA2000 Backup Box | Three-phasis | Backup Box-B1

The Huawei Backup Box-B1 is a reliable backup power module designed for integration with Huawei's three-phase SUN2000-M1 series inverters and LUNA2000 battery systems. In the event of a grid failure, it automatically switches the inverter to islanded (off-grid) mode within 3 seconds, ensuring uninterrupted power supply to essential single-phase loads. Once the grid is restored, the system seamlessly returns to normal operation.

Specifications:

Model: Backup Box-B1

Function: Automatic backup power switch for three-phase Huawei inverters

Compatible Inverters: Huawei SUN2000-3/4/5/6/8/10KTL-M1

Compatible Battery: Huawei LUNA2000 series

AC Input (Grid)

Connection: Three-phase

Rated Voltage: 380 V / 400 V

Frequency: 50 Hz / 60 Hz

Voltage Range: 342 V – 440 V

AC Output (Backup)

Connection: Single-phase

Rated Voltage: 220 V / 230 V

Frequency: 50 Hz / 60 Hz

Maximum Apparent Power: 3.3 kVA

Maximum Output Current: 15.2 A

Switchover Time: < 3 seconds

General Data

Operating Temperature Range: –20°C to +45°C

Relative Humidity: 0% to 100%

Protection Degree: IP65

Dimensions (W × H × D): 400 mm × 350 mm × 130 mm

Weight: 11 kg