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SMA Sunny Boy 240-US (SB 240-US-10) microinverter
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Key specs
Units- SKU
- SB 240-US-10Official instruction manual
Sources
SMA's device type, printed on the manual's Validity page.
Official instruction manual: SMA eManual SUNNY BOY 240-US / SUNNY MULTIGATE-US installation manual, Validity (November 3, 2026 capture) Checked · Earlier documentLocation: Validity
Documented
- Weight
- 1.3 kg2.9 lb convertedOfficial instruction manual
Sources
Printed as 1.3 kg.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, General Data
Documented
- AC voltage
- 240 V (2 x 120 V split phase)Official instruction manual
Sources
Rated grid voltage and nominal AC voltage.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, AC Output
Documented
- Dimensions
- 1.76 LW: 188 × H: 218 × D: 43 mmW: 7.4 × H: 8.58 × D: 1.7 in convertedOfficial instruction manual
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
Sources
With the connection area; 199 mm high without it.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, General Data
Calculated
- Efficiency
- 95.9 %Official instruction manual
Sources
The maximum efficiency row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, Efficiency
Documented
- MPPT voltage range
- 23 to 39 VOfficial instruction manual
Sources
At 240 V.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, DC Input
Documented
- Maximum PV voltage
- 45 VOfficial instruction manual
Sources
The maximum input voltage row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, DC Input
Documented
- Apparent power
- 240 VAOfficial instruction manual
Sources
The maximum apparent AC power row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, AC Output
Documented
- Continuous output
- 0.24 kWOfficial instruction manual
Converted: 240 W / 1000 W/kW
Sources
Converted: 240 W / 1000 W/kW
Printed as 240 W.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, AC Output
Converted
All specs12
- AC voltage
- 240 V (2 x 120 V split phase)Official instruction manual
Sources
Rated grid voltage and nominal AC voltage.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, AC Output
Documented
- Efficiency
- 95.9 %Official instruction manual
Sources
The maximum efficiency row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, Efficiency
Documented
- Apparent power
- 240 VAOfficial instruction manual
Sources
The maximum apparent AC power row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, AC Output
Documented
- Continuous output
- 0.24 kWOfficial instruction manual
Converted: 240 W / 1000 W/kW
Sources
Converted: 240 W / 1000 W/kW
Printed as 240 W.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, AC Output
Converted
- Weighted efficiency
- 96 %Official instruction manual
Sources
The CEC efficiency row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, Efficiency
Documented
- MPPT voltage range
- 23 to 39 VOfficial instruction manual
Sources
At 240 V.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, DC Input
Documented
- Maximum PV voltage
- 45 VOfficial instruction manual
Sources
The maximum input voltage row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, DC Input
Documented
- Max PV input current
- 8.5 AOfficial instruction manual
Sources
The maximum input current row.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, DC Input
Documented
- PV short-circuit current limit
- 12 AOfficial instruction manual
Sources
Per module.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, DC Input
Documented
- Weight
- 1.3 kg2.9 lb convertedOfficial instruction manual
Sources
Printed as 1.3 kg.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, General Data
Documented
- Dimensions
- 1.76 LW: 188 × H: 218 × D: 43 mmW: 7.4 × H: 8.58 × D: 1.7 in convertedOfficial instruction manual
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
Sources
With the connection area; 199 mm high without it.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, General Data
Calculated
- Operating temperature
- -40 to 65 °C-40 to 149 °F convertedOfficial instruction manual
Sources
Printed as -40 to +65 °C.
Official instruction manual: SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture) Checked · Earlier documentLocation: Technical Data, Sunny Boy 240-US, General Data
Documented
Published claims and calculations, not independent test results.
Documents
- WEBOpenSMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture)Official
Source details
Captured 2026-11-03T06:31:07.917Z (archived copy).
Location: Technical Data, Sunny Boy 240-US
Retrieved
The Sunny Boy 240-US technical data page of SMA's online installation manual (manuals.sma.de, SB240-US-10), fetched directly from SMA's own host with the paced research fetcher on November 3, 2026 (robots.txt checked first; request ended 06:31:07.917 UTC). Manufacturer claims, not independent tests.
Archive and older revisions
Archive and older revisions1
Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.
- WEBOpenSMA eManual SUNNY BOY 240-US / SUNNY MULTIGATE-US installation manual, Validity (November 3, 2026 capture)Official
Source details
Captured 2026-11-03T06:15:50.279Z (archived copy).
Location: Validity
Retrieved
The Validity page of SMA's online installation manual for the Sunny Boy 240-US and Sunny Multigate-US (manuals.sma.de, SB240-US-10), fetched directly from SMA's own host with the paced research fetcher on November 3, 2026 (robots.txt checked first; request ended 06:15:50.279 UTC). Manufacturer claims, not independent tests.
Warranty
No warranty terms on file.
Sellers
No sellers found.
Price history
No seller price history.
Owner reviews
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Evidence score
The Evidence score uses the priorities you choose. It counts published documents, such as certificates and warranty terms, and it compares a documented figure with the best documented figure of the same kind. It does not count owner reviews, and it is not a verdict on product quality or on how many people have reviewed it. A low score can mean little is documented, or that a documented figure is below the best of its kind. Undisclosed data scores 0.
Missing for this product: Certificate evidence needed; Warranty term needed; Battery conversion efficiency needed; Idle consumption needed.
Each input is scored against the best documented value for an inverter: warranty term and battery conversion efficiency against every published inverter, idle consumption (lower is better) against the inverters in the same output band, or against every published inverter when the output is not documented. A documented value always earns points; an undisclosed one earns 0 and is listed as missing. Researched products receive a score. Certificates earn points for the evidence itself. Size and weight do not affect scores.
Research pending, 0 points: Certificates, Warranty term, Battery conversion efficiency, Idle consumption.
Warranty term and battery conversion efficiency are compared with every published inverter; idle consumption with the inverters in the same 0 to 1.5 kW output band. · Method version 0.5
How it worksCertificates
No certificates on file. Certificate guide
Parts and accessories
No sourced accessories or replacement parts listed yet.
Model history
Model identity
- Model
- SB 240-US-10
Manufacturer SKU SB 240-US-10
No historical observations recorded yet.
Community discussions
No discussions linked yet. Search DIY Solar Forum
Recalls / legal notices
No recalls or legal notices on file; this is not a complete recall or court search. All notices · Report a notice
Something wrong that is not one of the values above?
Prices · price basis. * Calculated; estimates labeled. Value needs confirmation; select it for the reason.