SMA > Backup Select for Sunny Boy Smart Energy / SBSE Inverters
SMA Backup Select: Automatic backup switch with integrated breaker panel for your critical loads
SMA Backup Select, when paired with the Sunny Boy Smart Energy helps ensure reliable power supply during grid outages. Thanks to the automatic and seamless transition between on- and off-grid mode, homeowners can have peace of mind knowing critical appliances are reliably powered while the sun is shining.
SMA Backup Select is available as an external box for single-phase systems (120 V) supporting household appliances when it matters, without the need for a battery. The perfect combination of efficiency and security, SMA Backup Select effortlessly bridges unexpected power outages with the help of the sun.
SMA Backup Select provides partial reliable backup for critical appliances delivering up to 5,760 W* of power, with or without a battery automatically to select loads in the home. This system protects the most vital circuits, automatically managing five 15 A / 120 V outlets and two 20 A / 120 V circuits, delivering security when power matters most.
SMA Backup Select, Select up to (7) 120V circuits to automatically power during a grid outage from your solar panels when the sun is out, add a battery for 24 hours of backup.
Specifications
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Model
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BU-SLCT-US-50
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Series
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SBSE - Sunny Boy Smart Energy
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Manufacturer
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SMA
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Product Features
Ultimate flexibility
- Seamlessly integrates with SMA Sunny Boy Smart Energy hybrid
inverters
- Protects the most critical circuits automatically - five 15 A / 120 V outlets
and two 20 A/ 120 V circuits
- Customizable switching timing between backup and grid power to
match your needs
- NEMA 3R weatherproof rating - install anywhere, indoors or out
Easy Installation & Setup
- Flexible installation with four-sided conduit entries and straightforward
wiring
- Commission quickly using the SMA 360° mobile app
- Meets code requirements for indoor installations with SMA RSI switch
Transform Your SBSE-US-50 System
- Add automatic backup power capability to your existing hybrid inverter
- Keep 7 essential household circuits powered during outages
- No manual switching required - operates automatically when you need
it most
Ensure seamless energy security with SMA Backup Select—an affordable, entry-level backup solution.
Designed to pair with the Sunny Boy Smart Energy, SMA Backup Select provides reliable partial backup power, keeping your essential home loads running while the sun is shining.
This single-phase automatic backup switch includes an integrated breaker panel, offering a cost-effective and flexible power source during grid outages.
With a 7 single-pole breaker backup box and power ratings of 3,840 Wą and 5,760 W˛, SMA Backup Select is an ideal solution for energy security.
