Description
About This Product
The Sunny Boy 4.0 is a single-phase grid-connected solar inverter designed for Australian residential systems. It converts DC power from rooftop solar panels into usable AC power for the home and grid. This model sits in SMA’s well-known Sunny Boy range and is built for reliability, stable performance, and straightforward installation.
Product Explainer Video
SMA Sunny Boy 3.0-5.0 with SMA Smart Connected Explained
Who This Product Suits
The Sunny Boy 4.0 suits homes with a small to medium single-phase solar array looking for a dependable, no-nonsense inverter. It is a good fit for standard residential rooftops, including systems with two panel orientations, and for customers who value long-term reliability over complex features.
Specifications Explained
The Sunny Boy 4.0 provides 4.0 kW of single-phase AC output and includes dual MPPT inputs to handle multiple roof strings efficiently. It supports SMA ShadeFix for improved energy yield on partially shaded arrays and includes integrated Wi-Fi and Ethernet for monitoring via SMA Sunny Portal. The inverter is designed to meet Australian grid compliance requirements.
Summary
The Sunny Boy 4.0 is a solid residential inverter choice for straightforward solar installations. It delivers proven SMA performance, flexible string design, and reliable monitoring without unnecessary complexity.
Weights & Measurements
| Length (mm) | 470.0 mm |
|---|---|
| Width (mm) | 435.0 mm |
| Height (mm) | 176.0 mm |
| Weight (kg) | 16.0 kg |
Downloads
About SMA
SMA is a long-established German inverter manufacturer known for electrical reliability, long life cycles, and strong engineering standards. Their solutions are used in residential, commercial, and utility systems, offering proven stability and comprehensive monitoring tools.
More Explainer Videos
TechTip: Sunny Boy Smart Energy 5.0/6.0 – Installation Guide (AUS/NZ)
Tech Tip: Sunny Boy 3.0-5.0 Installation
