Huawei Backup Box B1 for Three Phase Systems

Huawei Backup Box B1 for Three Phase Systems

#1: HUA-BACKUP-BOX-B1

Backup Box Data Sheet

Backup Box Manual

Backup Box Warranty

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Huawei's Backup Box provides automatic detection & switchover providing reliable backup power.

The Backup Box is used in a residential rooftop PV plant system to control the inverter grid-tied

or off-grid state.

When the grid fails, the inverter switches to the off-grid state and supplies power to off-grid loads in backup mode.

When the grid recovers, the inverter switches back to the grid-tied state.

The Box is compatible with the following Huawei Inverters: SUN2000-3/4/5/6/8/10KTL-M1