Growatt MIC 3300TL-X 3.3kW Single-Phase Solar Inverter

The Growatt MIC 3300 TL-X is the most powerful model in the MIC single-phase DC range, delivering up to 3.3kW AC output for domestic and small commercial installations. Designed for compactness and efficiency, it transforms solar energy into clean power with minimal loss, achieving a maximum efficiency of 97.6% under standard test conditions. Ideal for UK homes with 3–4kW systems, it combines intelligent MPPT tracking with installer-friendly simplicity.

High-Efficiency Performance for British PV Systems

The MIC 3300 TL-X features a single MPPT tracker operating across a wide 65–550V voltage range. Its 99.5% MPPT tracking accuracy ensures consistent power delivery, even under low or changing light conditions. The inverter supports up to 4300W PV input, offering flexibility for south-facing or split-orientation arrays typical of UK rooftops. With advanced power conversion and low-start-up voltage, it maintains stable performance throughout the day.

Built for Reliability & Protection

Constructed with a robust IP65-rated aluminium casing, the MIC 3300 TL-X withstands dust, rain, and moisture ingress. Its passive cooling design ensures quiet operation below 30dB, ideal for wall-mounted indoor or outdoor setups. Integrated safety measures include residual-current monitoring, DC reverse-polarity protection, and Type III AC/DC surge protection. The optional AFCI module adds extra fire prevention security. Certified to EN 62109 and compliant with G98/G99, it’s fully approved for UK grid use.

Key Features

• Single MPPT with 99.5% tracking precision
• Up to 97.6% maximum efficiency
• Fanless IP65 enclosure for silent outdoor operation
• Wi-Fi, LAN, or RS485 connectivity for Growatt Cloud
• Lightweight 6kg design for easy wall mounting
• Full G98/G99 and EN 62109 compliance

If you’re wondering how the MIC 3300 TL-X performs during typical UK weather, its low start-up voltage and broad MPPT range allow it to generate efficiently through cloudy skies and low irradiance levels common across Britain.

Specification data verified from Growatt MIC TL-X Inverter datasheet (V04.2024).

Smart Monitoring & Connectivity

The Growatt MIC 3300 TL-X enables smart, connected performance through a variety of communication interfaces. It supports Wi-Fi and LAN connectivity for remote Growatt Cloud monitoring, giving users and installers full visibility of system data, error logs, and performance reports. Built-in RS485 and USB ports provide options for local monitoring and firmware upgrades, while optional GPRS and RF modules extend flexibility for sites with limited network access.

Seamless Integration with Solar Panels

Fully compatible with a wide range of solar panels, the MIC 3300 TL-X integrates smoothly into single-phase systems designed for UK homes or light-commercial sites. The inverter’s single MPPT simplifies installation, while its 65–550V input range accommodates diverse array configurations. Its optimised algorithm ensures stable operation even in partially shaded or east–west setups.

Compact Design & Rugged Construction

Weighing only 6kg and measuring 274×254×138mm, the MIC 3300 TL-X is one of the lightest and most installer-friendly models in its class. Its IP65 enclosure protects against rain, dust, and moisture, making it suitable for outdoor walls or enclosed utility areas. The fanless design keeps noise levels below 30dB while improving long-term reliability by eliminating mechanical wear points.

Installer Guidance & System Notes

Why We Recommend the Growatt MIC 3300 TL-X

At Evergy, we recommend the MIC 3300 TL-X for installers seeking a reliable, efficient inverter for domestic systems around the 3–4kW range. Its slimline form, smart connectivity and robust protection features make it a trusted choice for both new installs and replacement projects.

Evergy is the renewable division of LAMPS Electrical, an independent UK wholesaler with more than 15 years of experience supporting professional installers. We supply verified Growatt inverters, UK warranty coverage, and technical assistance from our renewables team based in Oxfordshire.

Choose the MIC 3300 TL-X for its proven reliability, quiet operation and consistent performance in British conditions.

Compare in the Growatt MIC TL-X Range

FAQs – Growatt MIC 3300 TL-X

For assistance with system design or compatibility queries, contact Evergy — the trusted UK supplier of Growatt inverters, solar panels, and renewable components.