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Huawei

Backup Box-B0/B1

Features and Benefits

  • Simplicity
    • Automatic Detection & Switchover
  • Reliability
    • Reliable Backup Power
  • Black Start
    • System Restarts After Battery Shutdown

Available to Order
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Models

  • Backup Box-B0
  • Backup Box-B1

Overview

Introduction

The Huawei Backup Box-B0/B1 provides seamless backup power for residential solar systems. Designed for single-phase (B0) and three-phase (B1) setups, it automatically detects grid outages and switches to backup mode in under 3 seconds. With robust protection (IP65), wide operating temperatures, and simple integration with Huawei SUN2000 inverters, it ensures your essential loads stay powered reliably during grid interruptions.

Specifications

AC Output (On grid)

Backup Box-B0

  • Grid connection: Single Phase
  • Rated voltage: 220 V / 230 V
  • AC frequency: 50Hz / 60Hz
  • AC output voltage range: 198 V ~ 253 V
  • Maximum pass through current: 40 A

Backup Box-B1

  • Grid connection: Three Phase
  • Rated voltage: 380 V / 400 V
  • AC frequency: 50Hz / 60Hz
  • AC output voltage range: 342 V ~ 440 V
  • Maximum pass through current: 40 A

Backup Box-B0

  • Load connection: Single Phase
  • Rated voltage: 220 V / 230 V
  • AC frequency: 50Hz / 60Hz
  • Maximum apparent power: 5,000 VA
  • Maximum output current: 22.7 A
  • Switchover time: ＜3 s

Backup Box-B1

  • Load connection: Single Phase
  • Rated voltage: 220 V / 230 V
  • AC frequency: 50Hz / 60Hz
  • Maximum apparent power: 3,300 VA
  • Maximum output current: 15.2 A
  • Switchover time:＜3 s

Backup Box-B0

  • Rated voltage: 220 V / 230 V
  • AC frequency: 50Hz / 60Hz
  • Compatible inverter: SUN2000-2/3/3.68/4/4.6/5/6KTL-L1

Backup Box-B1

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

Operating temperature range

  • -20 ℃ to +45 ℃ (-4 ℉ to 113 ℉)

Relative humidity range

  • 0 %RH～100 %RH

Dimensions (W * H * D)

  • 400 x 350 x 130 mm (15.8 x 13.8 x 5.1 inch)

Weight

  • 11 kg

Degree of protection

  • IP 65