TSUN 400W Plug-In Balcony Microinverter

Maximise your residential energy efficiency and take control of your utility costs with the TSUN 400W Plug-in Balcony Microinverter. Engineered explicitly for decentralised photovoltaic (PV) generation, this high-performance microinverter is the perfect technical anchor for any modern Solar Balcony System.

Whether you are looking to outfit an apartment balcony, a garden terrace, or a small flat roof, the TSUN MS400 Plug-in Balcony Microinverter offers a streamlined, compact solution to convert solar irradiance directly into usable household power. By feeding clean energy straight into your home’s mains via a standard domestic socket, this system allows you to easily shave electric bills and significantly reduce your reliance on grid power.

Optimise Efficiency with a Dedicated Solar Balcony System

Traditional solar setups often rely on massive central string inverters, which suffer severe performance drops if a single panel experiences temporary shading, dust, or leaf cover. The TSUN TSOL-MS400 400W Plug-in Balcony Microinverter bypasses this bottleneck entirely through individual optimisation.

By utilising a dedicated Maximum Power Point Tracking (MPPT) network, the microinverter continuously calculates the optimal voltage and current parameters for its connected solar panel.

• Broad Module Compatibility: Fully compatible with modern high-output panels ranging from 300W to 550W.
• Exceptional Tracking Precision: Delivers a static MPPT efficiency of 99.9%, meaning almost zero wasted energy.
• Ultra-Low Startup Voltage: Operates at a low starting threshold of just 22V, ensuring your balcony solar kit starts generating power during early morning low-light conditions and maintains production until late evening.

Engineering & Technical Specifications

Built to withstand exposed outdoor environments, the TSUN 400W microinverter features a rugged die-cast aluminium casing and advanced glue-filling technology. This ensures optimal thermal dissipation via natural convection cooling, eliminating the need for noisy mechanical fans and guaranteeing silent operation on your balcony.

Plug-and-Play Installation & Grid Integration

Safety and simplicity are core to the TSUN design philosophy. Operating at a maximum DC input voltage of 60V, the microinverter completely removes the risks associated with high-voltage DC arcing, making it completely safe for DIY domestic setups.

Featuring standard plug-and-play installation, the microinverter connects directly to your solar module on one side, and outputs AC electricity via an integrated AC bus cable to a local plug (such as a standard domestic UK 3-pin outlet). To protect utility workers, it includes an integrated Loss of Mains (LoM) protection function, ensuring immediate system shutdown during an unexpected grid failure.

Full UK Grid Compliance: G98 Certified

The TSUN 400W Plug-in Balcony Microinverter is fully G98 Compliant, making it legally recognised and certified for safe connection to the UK electrical grid. In simple terms, G98 is a standard technical regulation set by the UK Energy Networks Association for small-scale, domestic renewable energy systems that output under 3.68kW. Being G98 compliant means the microinverter has undergone strict type-testing to guarantee it won’t disrupt your local power network. Most importantly, it features an integrated automatic safety switch off. If there is ever a power cut in your neighbourhood, the inverter instantly disconnects within milliseconds to prevent sending live electricity back into the external wires, keeping utility engineers entirely safe while they work on the lines. With this certification, you can plug in your balcony system with complete peace of mind, knowing it meets all UK safety and legal infrastructure requirements.

Scalable Daisy-Chain Architecture (800W Expansion)

For homeowners looking to double their energy yields, the TSUN MS400 features a highly flexible, modular architecture that supports direct daisy-chaining. By utilising the built-in AC bus connectors, you can link two identical 400W microinverters in series to scale your system to an 800W maximum output, all while utilising a single AC mains connection point to your home.

Because each microinverter operates completely independently with its own dedicated MPPT network, the system effectively eliminates the vulnerabilities of traditional series arrays. If an adjacent building, railing, or passing cloud casts shade over one solar panel, its performance drop is entirely isolated. The second panel continues to harvest sunlight at peak efficiency completely unaffected, ensuring your solar balcony system consistently delivers maximum aggregate power to shave your electric bills.

Smart Energy Monitoring

Keeping track of your electricity savings is seamless. The TSUN MS400 400W Plug-in Balcony Microinverter comes equipped with an integrated WiFi communication module, removing the need for costly external smart gateways. Homeowners can link the inverter directly to their local home router and monitor real-time power generation data, grid statistics, and historical performance using the Talent Home App or the TSUN Smart Web Platform. This lets you see exactly how much solar power you are feeding back into your home to offset your base electricity load in real time.

What’s In the Box?

TSUN 400W Plug-in Balcony Microinverter, AC connection plug. (Does not include AC cable)

Recommend AC Cable – 5m AC Power Cord With UK Plug And Betteri BC01 Female Connector for 400W TSUN Microinverter