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SMA Sunny Boy 4000TL-US-22 Inverter

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SMA Inverters:
  • Offers a wide range of inverters to suit most any solar panel or system.
  • Forefront of inverter technology

Product Information

Model Part No. Watts Input
Type Size & Weight Price
SMA Sunny Boy 4000TL-US-22 Inverter29317164000W600VDC208/240VACDual Input MPPT21 × 20 × 8 in
70 lbs


Sunny Boy 4000TL-US
SMA has introduced their first series of transformerless grid-tie inverters packed full of new features allowing you get the most out of your system. With dual MPP trackers the Sunny Boy 4000TL-US can easily manage multiple roof orientations and system configurations maximizing power production.

  • Transformerless for increased efficiency and lighter weight
  • Dual maximum power point tracking (MPPT) for more design options
  • Reduce effects of partial system shading with OptiTrac™
  • Built-in LCD screen for output display
  • Flexible design and simple installation

The new transformerless design provides maximum power production with 96.5% CEC efficiency a greater operating voltage range of 125V to 600V all while reducing the size and weight.

The Sunny Boy 4000TL-US ships with a handful of new features including an SMA exclusive Secure Power Supply (SPS) which can provide up to 1,500 watts of dedicated power in the event of a daytime power outage. See video below.

The built in LCD screen allows the user to view up-to-the-minute system information as well as control and manage critical information.

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Features & Attributes

  • Dimensions (LxWxH): 21 × 20 × 8 inches
  • Weight: 70 lbs
  • Transformerless topology reduces weight while increasing efficiency
  • Secure Power Supply (SPS) for daytime power supply during a grid failure
  • Improved efficiency up to 97.2%
  • Dual Maximum Power Point Tracking allowing more system configurations
  • Built-in LCD output display
  • Simplified DC wiring
  • Free Sunny Portal monitoring with global access
  • Integrated fused series string combiner
  • Comprehensive SMA communications and data collection options
  • Ideal for residential or light commercial applications
  • Rugged cast aluminum outdoor rated enclosure
  • Wall mounting plate with anti-theft lock
  • Isolation monitoring
  • Surge voltage protection
  • Interruption protection
  • LED indicator for malfunction
  • Ground fault protection
  • Rugged outdoor enclosure
  • MPN: SB4000TL-US-22
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SMA Sunny Boy 4000TL-US-22 Inverter

Product Manual
Spec. Sheet
Installation Manual
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About SMA

Key Points:

  • Offers a wide range of inverters to suit most any solar panel or system.
  • Forefront of Inverter technology.

Founded in 1981, SMA Solar Technologies is headquartered in Niestetal, Germany, and has a worldwide presence in 15 different countries including the United States and Canada.

SMA touts themselves as the world's largest producer of solar inverters and monitoring systems for photovoltaic applications. With a wide range of inverters, they have one for every module type and power class including grid-tied, offgrid, or backup applications. Wholesale Solar designs their UL listed Solar Sky Gridtie Systems with SMA SunnyBoy inverters.

While SMA inverters are designed in Germany, the Sunny Central, the Sunny Island, and SMA SunnyBoy inverters in the 3 kW to 7 kW range are assembled in their new plant in Denver, Colorado. These inverters qualify for the ARRA recovery act and are UL and cUL listed.

Continually pushing the envelope when it comes to technology, SMA launched its own SMA solar academy in Rocklin, California, in April 2011. Their Solar Academy is equipped with the latest high-tech teaching tools and demonstration inverters to complement its comprehensive range of courses on photovoltaics and SMA products.

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