SMA Sunny Boy Storage automatic backup unit

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SBS-ABU-63.1-AU-10

 

Automatic backup unit for Sunny Boy Storage inverters

 

SMA’s Sunny Boy Storage with Automatic Backup Unit is a comprehensive solution that can supply whole home backup power in the event of a grid outage

 

How it works

Automatic Backup Unit consists of several components. The first is a contactor which automatically disconnects the home energy system from grid power during a power outage. It then automatically reconnects the home energy system to the grid once it is safe to do so. Next, an autotransformer will balance up to 5 kVA of imbalance across phases, reducing the potential for system interruption during backup mode operation due to imbalanced loads within the home. The solution also includes built-in energy consumption metering with pre-installed current transformers, which will eliminate the need for additional hardware and labour. Two circuit breakers are included for PV and energy storage inverter output, which also reduces hardware needs. Finally, the Automatic Backup Unit features an SMA backup controller, which manages and stabilises the micro-grid by monitoring solar generation, load consumption and battery state-of-charge.

• Can be used for direct connection of PV and Sunny Boy Storage inverters
• Outdoor rated
• 200 Amp rated bus allows for large panels to be connected
• Up to 5 kVA of unbalanced load
• Up to three high-voltage batteries can be connected in a single SMA residential storage solution

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