SMA Sunny Boy 240-US (SB 240-US-10) microinverter

By SMASKU SB 240-US-10

Key specs

Units
SKU
SB 240-US-10
Official 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 document

Location: Validity

Documented

Weight
1.3 kg2.9 lb converted
Official 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 document

Location: 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 document

Location: Technical Data, Sunny Boy 240-US, AC Output

Documented

Dimensions
1.76 L
Calculated: Enclosure volume: W × H × D ÷ 1,000,000
W: 188 × H: 218 × D: 43 mmW: 7.4 × H: 8.58 × D: 1.7 in convertedOfficial instruction manual
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 document

Location: 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 document

Location: Technical Data, Sunny Boy 240-US, Efficiency

Documented

MPPT voltage range
23 to 39 V
Official 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 document

Location: Technical Data, Sunny Boy 240-US, DC Input

Documented

Maximum PV voltage
45 V
Official 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 document

Location: Technical Data, Sunny Boy 240-US, DC Input

Documented

Apparent power
240 VA
Official 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 document

Location: Technical Data, Sunny Boy 240-US, AC Output

Documented

Continuous output
0.24 kW
Converted: 240 W / 1000 W/kW
Official instruction manual
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 document

Location: 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 document

Location: 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 document

Location: Technical Data, Sunny Boy 240-US, Efficiency

Documented

Apparent power
240 VA
Official 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 document

Location: Technical Data, Sunny Boy 240-US, AC Output

Documented

Continuous output
0.24 kW
Converted: 240 W / 1000 W/kW
Official instruction manual
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 document

Location: 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 document

Location: Technical Data, Sunny Boy 240-US, Efficiency

Documented

Published claims and calculations, not independent test results.

Documents

1 on file
  • WEB
    SMA eManual SUNNY BOY 240-US installation manual, Technical Data: Sunny Boy 240-US (November 3, 2026 capture)OfficialSMA Solar Technology AGOfficial instruction manual
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    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.

    Open

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.

  • WEB
    SMA eManual SUNNY BOY 240-US / SUNNY MULTIGATE-US installation manual, Validity (November 3, 2026 capture)OfficialSMA Solar Technology AGOfficial instruction manual
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    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.

    Open

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Warranty

No warranty terms on file.

Sellers

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Price history

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Evidence score

Research pending0% documented

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 works

Certificates

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

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Recalls / legal notices

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