SMA Sunny Tower ST42, 42kW with Web Box, 208V or 240VAC

$23,700.00

In Stock

SKU: ST42 w/webbox 208V

SMA presents the best in commercial inverter solutions: The Sunny Tower. Designed specifically for installers, the Sunny Tower provides ease of installation, lowest specific cost ($/Watt) and the highest efficiency to maximize rebates and power production, while minimizing the overall payback period. The Sunny Tower combines the performance advantages of string inverters with the installation advantages of central inverters. Because of Sunny Tower's modular design, it can be installed without the use of heavy equipment. This allows any installer with residential experience to successfully install commercial grade systems using the experience and tools they already have. The Sunny Tower is available in 36 kW and 42 kW models and multiple Sunny Towers can be used together on a single system. Sunny Towers are available with a built-in Sunny WebBox making them internet ready. The Sunny Tower places commercial installations within easy reach of any installer while providing the performance and reliability you've come to expect from SMA

Advantages Overview:

  • Certified to the new UL 1741/IEEE 1547
  • 10-year standard warranty
  • Pre-wired at factory
  • Integrated load-break rated AC/DC disconnect switch
  • Internet ready with Sunny WebBox
  • Improved CEC efficiency
  • Integrated fused series string combiner
  • Sealed electronics enclosure and OptiCool
  • Ideal for commercial applications
  • Rugged stainless steel outdoor rated enclosure

ST42 w/webbox 208V Manual

ST42 w/webbox 208V Specifications


This product is shipped from one of our warehouses in Northern California. Orders placed after 12 p.m. will typically ship the following business day. To see an estimate of our delivery times, click here.

Returns & Replacements
If you are not satisfied with your purchase, you may return the product within 30 days for a replacement or a refund of the product value. Products must be unused in re-sellable condition with all original packaging, paperwork and accessories.


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