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SMA Sunny Boy SB7.7-1SP-US-40 7.7kW Inverter

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  • SB7.7-1SP-US-40
SMA America
MSRP: $3,653.00
$1,512.00 (You save $2,141.00)
SKU: SB7.7-1SP-US-40
Note: Out of Stock - See manufacturer for similar products.
Condition: New
Weight: 57.00 LBS

 Product Description

SMA 7.7kW String Inverter - SB7.7-1SP-US-40

SMA, Sunny Boy SB-7.7-US 1-Ph Grid Tied Inverter, 7700W, 208/240VAC, 60Hz, integrated DC Discon, 3 MPPT Input, 10 Yr Warr, Transformerless, Arc-Fault Protection, Built in Ethernet/WLAN, SB7.7-1SP-US-40

The residential PV market is changing rapidly, and we understand that your bottom line matters more than ever. That’s why we’ve designed a superior residential solution that will help you decrease costs throughout all stages of your business operations. The Sunny Boy 3.0-US/3.8-US/5.0-US/6.0-US/7.0-US/7.7-US join the SMA lineup of field-proven solar technology backed by the world’s #1 service team, along with a wealth of improvements. Simple design, improved stocking and ordering, value driven sales support and streamlined installation are just some of the ways that SMA is working to help your business operate more efficiently.

SMA has updated their residential inverter line with their all new Sunny Boy transformerless single-phase residential inverters. These new inverters now have up to three separate MPPT channels, allowing even more stringing choices. These inverters also now have an integrated DC disconnect, that simplifies and speeds installation.

SMA’s unique Secure Power Supply feature has been improved, and now can supply up to 2,000 W (15 A / 120 VAC) of power to a protected outlet during a grid outage, for recharging portable devices or a small UPS directly from the PV array.

Connection to the SMA’s Sunny Portal for solar array monitoring has also have been simplified. These inverters now ship with an included datalogger, allowing both WiFi and Ethernet wired connection options for monitoring the solar array.

These SMA inverters are listed to UL 1741, UL 1998, UL 1699B, and are compliant with IEEE-1547, and FCC Part 15 (Class A & B), as well as both ground and arc fault detection per NEC 2011. They are covered by a standard 10-year warranty, with 5 and 10-year extensions available.


  • Upgrades - World’s first Secure Power Supply now offers up to 2,000 W. Full grid management capabilities ensure a utility-compliant solution for any market.
  • User Friendly- New Installation Assistant with direct access via smartphone minimizes time in the field. Integrated disconnect simplifies equipment stocking and speeds installation. Two-part enclosure concept allows for simple, expedited servicing. Enhanced AFCI technology reduces false tripping while improving sensitivity in real arcs.
  • Flexible - SMA’s proprietary OptiTrac Global Peak technology mitigates shade with ease. Multiple independent MPPTs accommodate hundreds of stringing possibilities.


General Information  
Manufacturer: SMA America
Product Line:
Sunny Boy
Model ID:
Certifications and Safety Ratings: ul.jpg ieee.jpg fcc.jpg csa.jpg


Mechanical Data
Technology: String Inverter
21.10 x 28.50 x 7.80 inches
Weight: 57.00 lbs
Operating Temperature Range:
-25 to +60°C
Noise Emission (Typical): < 45 dB(A)
Internal Power Consumption at Night: <5 W
Topology: Transformerless
Cooling Concept: Fan
Certifications: UL 1741, UL 1998, UL 1699B, IEEE1547, FCC Part 15 (Class A & B), CAN/CSA V22.2 107.1-1


Electrical Data
Max. Useable DC Power: 6900W @208V; 7950W @240V
Max. DC Voltage: 600V
Rated MPPT Voltage Range: 270V - 480V
MPPT Operating Voltage Range:
100V - 550V
Min. DC Voltage/Start Voltage:
100V / 125V
Max. Operating Input Current per MPPT: 10 Amps
Max. Short Circuit Current per MPPT: 18 Amps
Number of MPPT Tracker/String per MPPT Tracker: 3/1
AC Nominal Power: 6660W @208V; 7680W @240V
Max. AC Apparent Power: 6660VA @208V; 7680VA @240V
Nominal Voltage/Adjustable: 208V/240V
AC Voltage Range: 183-229V @208V; 211-264V @240V
AC Grid Frequency: 60Hz/50Hz
Max. Output Current: 32.0A @208V/32.0A @240V
Power Factor: 1
Output Phases/Line Connections: 1/2
Harmonics: <4%
Max. Efficiency: 97.5% @208V; 97.5% @240V
CEC Efficiency: 96.5% @208V; 97.0% @240V


Document Type
logo-adobe-pdf-2.jpgSMA America SB7.7-1SP-US-40 Specs Specifications
logo-adobe-pdf-2.jpgSMA America SB7.7-1SP-US-40 Manual Installation Guide
Warranty 10 Year Factory Warranty
logo-adobe-pdf-2.jpgSMA America Warranty Warranty


Terms & Conditions
Shipping: Shipping Policy
Returns: Returns Policy
Payments: We accept: Visa, MasterCard, Discover, and American Express. We also accept checks, direct deposit and wire transfers for large orders.

SMA America - SMA Sunny Boy SB7.7-1SP-US-40 7.7kW Inverter
Price: 1512
Condition: new
Contact Us  

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We carry everything you need for your grid-tied or off-grid system, including plans, permits and diagrams. Our Solar Panels, Inverters, Racking and Mounting are second to none in quality, reliability, efficiency and lifespan. When going solar with us, we help you every step of the way in sourcing the products that matter for your investment.

Let us design and supply your system for less using the best products in the solar energy market. We are proud to be a preferred distributor for solar installers and DIY homeowners alike.

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 Product Videos

The All-New Sunny Boy-US
  • The All-New Sunny Boy-US
    The Sunny Boy 5.0-US / 6.0-US features a wealth of improvement...

 Warranty Information

Warranty: 10 Year Factory Warranty

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