

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 *AVAILABLE OCTOBER*
The SMA-BU-SLCT-US-50 (SMA Backup Select) is an automatic backup/transfer switch designed to work with SMA Sunny Boy Smart Energy hybrid inverters. It automatically transfers selected household circuits to backup power during a grid outage and includes an integrated breaker panel for up to 7 critical 120 V circuits.
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Description
Specifications:
- Manufacturer Part Number: BU-SLCT-US-50
- Shipping Dimensions: 14 x 23 x 9 in
- Shipping Weight: 15.5 lb
Mechanical:
- Model: BU-SLCT-US-50
- Backup circuits: Up to 7
- Backup power: Up to 3,840 W with SBSE 3.8–7.7 inverter models; up to 5,760 W with SBSE 9.6/11.5 models.
- Enclosure rating: NEMA 3R
- Certifications/Safety: UL, FCC, NEMA
- Manufacturer: SMA America
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Resources
Datasheet
✔️ Download Datasheet
Quick Installation Guide
✔️ Download Installation Guide
Warranty
✔️ Warranty