SMA Sunny Boy 3.0 / 3.6 / 4.0 / 5.0 / 6.0

More than an inverter.

Sunny Boy 3.0 / 3.6 / 4.0 / 5.0 / 6.0

100% ease and comfort with Sunny Boy 3.0–6.0

Maximum energy yields for private homes

Thanks to its integrated web interface for easy commissioning via a smartphone or tablet and SMA Smart Connected service, this inverter offers true ease and comfort for PV system operators and installers.

Good to know

Fast and targeted service with SMA Smart Connected​​​​​​​.

Fast and targeted service with SMA Smart Connected.

SMA Smart Connected

Quick and easy to install

With its reduced weight, the Sunny Boy can be installed quickly while taking up minimal space. The Sunny Boy can be commissioned quickly via smartphone or tablet thanks to its web interface.

  • One-person installation due to low weight of 17.5 kg

  • Compact design through minimum space requirements

  • Quick installation thanks to external connections

  • Intuitive commissioning and local monitoring via a smartphone or tablet

Intelligent optimization
Flexibly expandable
Operate safely

Intelligent optimization of energy yield

Established product features and integrated software solutions will provide yield optimization throughout the system’s entire service life. Even in shading. SMA ShadeFix is a proprietary inverter software that optimizes energy yield in nearly every situation. SMA Smart Connected inverter monitoring offers enhanced safety by detecting errors at an early stage and automatically reporting them to the installer.

  • SMA ShadeFix is an integrated software for yield optimization
  • Dynamic active power limitation means direct use of excess energy and less power from the grid
  • Automatic inverter monitoring via SMA Smart Connected
  • System data visualization via Sunny Portal
  • Local visualization via Smart Inverter Screen

Flexibly expandable anytime

With the Sunny Boy, PV system operators can ensure that their PV system always generates maximum yields. If greater use of solar power is made in your own home, intelligent energy management and SMA storage solutions can be added at any time to systems with the Sunny Boy.

Effectively prevent electric arcs with SMA ArcFix

SMA ArcFix, the integrated arc-fault circuit interrupter (AFCI) in our inverters, is a highly effective tool for detecting possible electric arcs in the PV system. The inverter stops feed-in operation whenever an electric arc is detected. With the introduction of SMA ArcFix in our inverters, we continue to consistently raise the already high safety standard of PV systems.

SMA Sunny Boy 3.0 / 3.6 / 4.0 / 5.0 / 6.0

SMA Smart Connected

Investment security included

With SMA Smart Connected, SMA offers free and automatic inverter monitoring that helps installers to provide customers with a quick, targeted service. If an inverter fails, SMA proactively informs the PV system owner and the installer. In this way, PV system owners and installers benefit from minimized diagnosis and downtime. If it is necessary to replace the inverter, SMA sends a replacement device fast and free of charge.

SMA Smart Connected

How it works

Activation of SMA Smart Connected

During registration of the system in Sunny Portal, you, as the installer, activate SMA Smart Connected and thus start automatic inverter monitoring by SMA.

Automatic inverter monitoring

SMA automatically checks the inverter for anomalies around-the-clock during operation. You and your customers benefit from SMA's many years of experience.

Proactive communication

After a fault has been diagnosed and analyzed, SMA informs the installer and PV system operator immediately by email. Everyone is thus optimally prepared for the troubleshooting process ensuring minimum downtimes and reducing outlay and costs. The regular power reports also provide the installer with valuable information about the overall system.

Replacement Service

If a replacement device is necessary, SMA automatically supplies a new inverter within one to three days of the fault diagnosis. As the installer, you can contact the PV system operator of your own accord and replace the inverter immediately.

3D View - Home Installation

1 Sunny Boy 3.0 – 6.0
SMA Smart Connected - the integrated service package
3 PV system monitoring via Sunny Portal

Wiring Diagram - System Structure

Basic System functions

  • Easy commissioning via integrated WLAN and Speedwire interface

  • Maximum transparency thanks to visualization in the Sunny Portal

  • Safe investment through SMA Smart Connected

  • Modbus as interface for third-party providers

Expanded System functions

  • Basic system functions

  • Reduction in purchased electricity and increase in self-consumption through use of stored solar energy

  • Maximum energy use thanks to forecast-based charging

  • Increased self-consumption thanks to intelligent load control

  • Easy integration of ripple control receivers via SMA Power Limiter

With SMA Energy Meter

  • Maximum system usage through dynamic limiting of feed-in to the grid between 0% and 100%

  • Visualization of energy consumption

Sunny Boy 3.0 / 3.6 / 4.0 / 5.0 / 6.0


Operating manual

Operating manual

Now the operating manual is also available as

With Sunny Design, you can plan your tailor-made PV system in just a few clicks.

Planning tool Sunny Design

With Sunny Design, you can plan your tailor-made PV system in just a few clicks.

Plan your system now

Do you have any questions?

If you have any questions, please contact SMA.

Contact us now