SMA Backup Select Automatic Backup Switch BU-SLCT-US-50
MPN No: BU-SLCT-US-50
Expected ship date Jan 16 - 23
In Stock
$730.11
SMA Backup Select Automatic Backup Switch BU-SLCT-US-50
SMA Backup Select Automatic Backup Switch BU-SLCT-US-50
Regular price
$730.11
New
LESS THAN 50
SMA Backup Select Automatic Backup Switch BU-SLCT-US-50
SMA Backup Select Automatic Backup Switch BU-SLCT-US-50
Available
MPN No: BU-SLCT-US-50
Regular price
$730.11
Expected ship date Jan 16 - 23
We offer multiple secure payment options for your convenience
We offer multiple secure payment options for your convenience
Data Sheet
Regular price
$730.11
SMA Backup Select Automatic Backup Switch BU-SLCT-US-50
MPN No:
BU-SLCT-US-50
Expected ship date Jan 16 - 23
SMA Backup Select BU-SLCT-US-50
The SMA Backup Select (BU-SLCT-US-50) is an automatic backup switch with an integrated 7-circuit breaker panel for essential household loads. Designed for the Sunny Boy Smart Energy (SBSE-US-50) hybrid inverter, it delivers 120 V backup power during grid outages with adjustable switchover timing and a weatherproof NEMA 3R enclosure for indoor or outdoor installs.
Key Benefits
Automatic Partial-Home Backup: Keeps up to 7 critical circuits powered—five 15 A/120 V and two 20 A/120 V—without manual switching.
Flexible Switchover: User-configurable transfer parameters (0–60 s default 5 s) optimize comfort and code requirements.
Outdoor-Ready: NEMA 3R rating, −40 °F to +131 °F operating range, wall-mount bracket.
Quick Commissioning: Set up with the SMA 360° app; integrates cleanly with SBSE-US-50 systems.
Special Technology
Integrated Breaker Subpanel: Built-in 7-pole subpanel simplifies wiring and reduces BOS costs.
System Coordination: Works with Sunny Boy Smart Energy inverters to provide 3,840 W (SBSE 3.8–7.7) or 5,760 W (SBSE 9.6–11.5) backup output at 120 V.
Warranty
2-Year Manufacturer Warranty.
Best Uses
Essential Loads Backup: Refrigeration, lighting, networking, and small appliance circuits during outages in SBSE-US-50 systems.
Specifications Table
| Specification | Data |
|---|---|
| Model | BU-SLCT-US-50 |
| Function | Automatic backup switch with integrated breaker panel (7 circuits) |
| Compatible Inverters | Sunny Boy Smart Energy SBSE 3.8–7.7-US-50; SBSE 9.6–11.5-US-50 |
| Backup Output Power | 3,840 W (with SBSE 3.8–7.7) / 5,760 W (with SBSE 9.6–11.5), 120 V, 60 Hz |
| Max Rated Output Current | 32 A (SBSE 3.8–7.7) / 48 A (SBSE 9.6–11.5) |
| Input / Output Voltage | 240 V (input) / 120 V backup output |
| Switchover Settings | Start threshold: 0–600 s (default 5 s); return-to-grid interruption: 0–60 s (default 5 s) |
| Circuit Provisioning | (5) × 15 A / 120 V & (2) × 20 A / 120 V breakers |
| Enclosure Rating | NEMA 3R, indoor/outdoor; wall-mounted |
| Operating Temperature | −40 °F to +131 °F (−40 °C to +55 °C) |
| Altitude / Humidity | Up to 3000 m; 0–100% RH |
| Dimensions (W × H × D) | 14 × 23 × 9 in |
| Weight | 15.5 lb |
| Activation | Automatic |
| Warranty | 2 Years |
About SMA:
SMA Solar Technology AG is a German company renowned for its high-quality solar inverters, energy management systems, and storage solutions for residential, commercial, and utility-scale installations. Their products—such as the Sunny Boy, Sunny Tripower, and Sunny Boy Storage—offer grid integration, smart monitoring, and reliability. SMA emphasizes innovation, robust design, and compatibility with diverse solar environments, often backed by long warranties and global service infrastructure.
Why Buy From US Solar Supplier?
As an American founded company out of Kentucky, US Solar Supplier is committed to providing top-quality solar products, backed by the world’s leading manufacturers. Our promise is to get you the fairest price from the best brands that offer warranties you can count on.
We update our inventory daily with solar components that feature the latest technology. With a reputation for excellence and a dedication to customer satisfaction, we ensure that every product we sell meets the highest standards in the industry.
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We’re here to help! If you have any questions or need more information before making your purchase, don’t hesitate to call us at 1-800-230-7004. Our knowledgeable and friendly team is ready to assist you with product details, installation advice, or the purchasing process.
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Join the many satisfied customers who have trusted us for their solar needs. Add to your cart now to secure your high-efficiency solar panels and take the next step towards sustainable energy!
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