SUNNY BOY 2500U (refurbished).

SUNNY BOY 2500U (refurbished).

  • $1,195.00

Fully Refurbished Sunny Boy Inverters.  Simply replace your broken unit with an exact model.

These units are fully refurbished by former SMA Technicians.

A division of Solar CowboyZ, which is now referred to as You Love Solar ( specializes in refurbishing out-of-warranty inverters (Gridtie SMA SunnyBoy and Offgrid Trace/Xantrex power inverters).  



You Love Solars’ inverter repair department began operation in 2013, using original in-house service technicians, trained for many years at the original manufactures facilities.  These technicians have made a career of professionally repairing and upgrading the power electronics inside these inverters, in most cases, “to better than” original factory specifications.

Sunny Boy 2500U Spec Sheet 


2500U supplies limited. Order while you can!


The SMA Sunny Boy inverter, the most popular grid-tied photovoltaic inverter in Europe, is now UL 1741 Listed and available in North America. Sunny Boy’s extensive track record in some of the world’s most demanding markets has made it a favorite among PV professionals everywhere. Over 80,000 Sunny Boy inverters have been installed worldwide. Having achieved the highest reliability of any PV inverter, Sunny Boy gained immediate acceptance in the US and Canadian markets. Superior design, rock-solid German engineering, and exceptional real-world efficiency have made Sunny Boy the top choice for American solar designers. These professionals know that Sunny Boy is a grid-tied inverter that they can recommend without reservation and install with confidence.

 Sunny Boy’s unsurpassed reliability and efficiency is the result of SMA’s manufacturing philosophy that combines simple design with robust execution. SMA’s state-of-the-art maximum power point tracking performance results in greater real-world energy capture than any other grid-tied PV inverter. Sunny Boy’s safety and reliability record is also exceptional due, in part, to the inverter’s redundant grid monitoring and built-in ground fault detection and interruption protection. The inverter’s IGBT power stage generates a nearly perfect sine wave with the lowest harmonic distortion in the industry and meets new ultra-strict FCC EMC standards. SMA’s unique String Inverter technology makes future system expansion simple. Sunny Boy’s optional power line carrier communication capability allows for extensive data acquisition from one or many inverters with no additional wiring. (Optional powerline modem required.) Other communication options are available to satisfy almost any application.

Inverter Technology Real sine-wave, current source, high frequency PWM

AC Input Voltage 211–264 (240 V AC) or 183–229 (208 V AC)

AC Input Frequency 59.3–60–60.6 (60 Hz), 50 Hz also

DC Input Voltage 250–600 V DC

Peak Power Tracking Voltage 234–550 V DC (at 240 V AC)

Minimum DC Input Voltage 207–256 V dependent on available line voltage

Maximum AC Power Output 2500 W (240 V AC), 2200 W (208 V AC)

Current THD Less than 4%

Power Factor Unity

Peak Inverter Efficiency 93%–94.4%

Cooling Convection cooling (no fan)

PV Start Voltage 300 Vdc

Maximum AC Current 10.4 A

Maximum DC Current 13 A

DC Voltage Ripple Less than 5%

Power Consumption 0 W nighttime, < 0.25 W standby

Ambient Temperature -25 °C … +60 °C

Enclosure NEMA 4X stainless steel

Size 434 W x 295 H x 214 D mm

Weight 70.4 lbs

Certifications United States:

UL 1741, E210376, UL 1998, IEEE 519, IEEE 929

ANSI C62.41 C1 & C3, FCC part 15 A&B


  • Simplified system design and lowest installation costs
  • No DC distribution necessary
  • System diagnosis and monitoring via powerline
  • Extended Operating Temperature Range (-25° C to +60° C)
  • Stainless Steel Case for Outside Installation
  • Equipped with MC® and AC connectors
  • 90 day limited warranty