Backup power supply for Sunny Boy Smart Energy

SMA Backup SMA Backup 1P / SMA Backup 3P Kit

Reliable electricity supply for both single-phase and three-phase domestic circuits, even during grid failures

The SMA backup solution adds a powerful battery-backup function to the Sunny Boy Smart Energy hybrid inverter. In the event of a power outage, the system automatically switches to off-grid mode and continues to reliably supply power to the entire household.

Available as an external box for single-phase systems (SMA Backup 1P) or as a compact DIN rail kit for three-phase installations (SMA Backup 3P Kit), this solution provides efficient and safe battery backup—with standby self-consumption of less than 1 W.

When combined with the Sunny Boy Smart Energy hybrid inverter and the SMA Home Storage battery, it forms a comprehensive, well-engineered solution for reliable power supply—even during a power outage.

More benefits

Flexible & compatible

Compatible with the Sunny Boy Smart Energy hybrid inverter
Backup solutions for single-phase and three-phase home installations
Power supply for all single-phase loads up to 63 A
Flexible switching between grid and battery-backup operation

Easy to integrate

SMA Backup 1P: External box designed for flexible wall mounting—perfect for retrofitting
SMA Backup 3P Kit: Compact solution for meter cabinets—with convenient push-in terminals

Secure & efficient

Integrated grid failure detection enables automatic load switching in the event of a grid failure
Phase coupling (with the 3P Kit) enables power supply of all three phases of the domestic circuit
Particularly low self-consumption during grid operation (<1 W)

Sunny Boy Smart Energy

SMA Backup perfectly complements the Sunny Boy Smart Energy hybrid inverters by integrating intelligent energy management and efficient storage into one powerful device.

Sunny Boy Smart Energy

SMA Home Stroage

When combined with the Sunny Boy Smart Energy hybrid inverter and SMA Backup, the SMA Home Storage battery offers even greater flexibility and enhanced energy independence—even during power outages.

SMA Home Stroage