SMA Sunny Boy inverters are the most widely used grid-tie PV inverters in the world. SMA inverters are available in sizes from 700 watts to 7000 watts, making them ideal for a wide range of applications from small residential systems to very large 3-phase industrial systems. All SMA inverters come standard with built-in LCD digital monitors that display instantaneous power output, energy delivered
during the current day and the total energy produced since installation. The SB700 and 1800 have 120 VAC output. The SB3000 & SB4000 are auto-sensing for use on 240 VAC and 208 VAC applications.

The SB 5000, 6000 and 7000 can be used in 208, 240 and 277 VAC applications. SMA offers a wide range of accessories for communications and monitoring of the system. The SB 3000 and 4000 come with a DC disconnect switch and the SB 5000, 6000, and 7000 come with an AC/DC disconnect switch, each with an integrated fused series string combiner that connects to the bottom of the inverter. The disconnect switches are housed in a NEMA 3R enclosure. All electronic components are in a sealed compartment.

The SB 700 is housed in a completely sealed stainless steel enclosure. Outdoor installation
is recommended for thesealed inverters so natural air-flow can cool the heat-sink. The
table on page 9 shows a typical module string size for many PV module brands that can be used with each inverter. This number can vary depending on maximum and minimum temperatures in the location where the system is installed. For more details, consult us or visit www.sma-america.com to use SMA’s stringsizing software.

All inverters are compliant with UL 1741, UL 1998, IEEE-929, IEEE-1547, FCC Part 15 A & B. The new SMA inverters now have a standard 10-year warranty.

NEW! Sunny Island

The Sunny Island inverters can be used for standalone off-grid systems, and they are a great way to add battery backup to an SMA Sunny Boy inverter based grid-connected system.

Grid-Tie System Backup

To do this, the grid-tie inverter output and the Sunny Island inverter output both feed circuit breakers in a sub-panel that also powers critical loads ––in the event of a grid failure. As long as grid power is present, it feeds the subpanel through the transfer switch in the Sunny Island. If the grid fails, the Sunny Island connected to a bank of batteries acts as the source of AC power, or the “AC grid” for that subpanel. This powers the critical loads connected to the subpanel and keeps grid-connected systems running if the sun is shining. The loads are actually powered directly by the grid-tie system if the sun is shining. If the grid-tie system is putting out more power than the loads need during a grid failure, the Sunny Island charges the batteries. At night or when power production is low and load use is high, the Sunny Island provides power from the battery bank. In the morning, the batteries are recharged and the cycle begins anew until the grid power returns. If the grid-tie inverter has a 240 VAC output, a backup system will require two Sunny Island inverters or one inverter and an autotransformer.

Sunny WebBox - Sunny Portal Connection

The SMA Sunny WebBox provides a connection between the operator’s computer and/or the free Sunny Portal web site (www.sunnyportal.com). The WebBox can be connected to a Sunny Boy, Sunny Tower, Sunny Island, or Sunny Central inverter (up to 50 units). Connection is made with 4-conductor twisted pair cable between the inverter’s RS-485 output and the Sunny WebBox terminals. The Sunny WebBox connects to a local area network (LAN) with an Ethernet cable or to a phone line with the optional modem. The Sunny WebBox stores system performance data in its internal 8 MB memory or on a standard SD memory card and can be set to upload the data to the Sunny Portal website at user-selectable intervals. Password protected. 5-year warranty.

Sunny Beam Bluetooth Wireless System Monitor

Completely updated for 2008, the new
Sunny Beam features Bluetooth wireless
technology for improved performance and
versatility. The Sunny Beam communicates
wirelessly with up to 12 Sunny Boy inverters
and graphically displays all the key performance data of your solar system. It features fully automatic system monitoring, including an audible alert signal. The Sunny Beam simultaneously displays power output,
daily energy production and the total energy production of the system. It may also be configured to display other parameters such as the overall CO2 offset of your system, as well as your earnings in dollars. 100 days worth of system performance data can be recorded and stored, and can then be simply transferred to a PC via a USB interface. Using the new and included Sunny Beam webconnect software, the data can in turn be transferred to the Sunny Portal website for long-term storage, display, and evaluation. Setting up the Sunny Beam is fast and easy via an intuitive set of user menus. Simply install an antenna and communication module in each of the Sunny Boy inverters and step through the configuration screens. The Sunny Beam is powered by a set of internal batteries which are kept charged by the integrated solar cell.